Alternatives to CircuitLab
Compare CircuitLab alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to CircuitLab in 2026. Compare features, ratings, user reviews, pricing, and more from CircuitLab competitors and alternatives in order to make an informed decision for your business.
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1
OrCAD X
Cadence Design Systems
OrCAD® X is a unified PCB design software platform that offers significant improvements in ease of use, performance, automation, data management, and collaboration. Our cloud-enabled product suite contains applications for schematic, simulation, and PCB layout. OrCAD X Capture is one of the most widely used schematic design solutions for the creation and documentation of electrical circuits. PSpice® is our virtual SPICE simulation environment integrated within Capture that allows you to prototype your designs using the industry-leading, native analog, mixed-signal, and advanced analysis engines to deliver a complete circuit simulation and verification solution. Our two PCB layout environments, OrCAD X PCB Editor and OrCAD X Presto, allow designers to easily collaborate between ECAD/MCAD teams and build better PCBs faster. OrCAD X Presto is a new user-friendly option offering a simpler interface for quick-turn PCB design.Starting Price: $107 USD/month -
2
EveryCircuit
EveryCircuit
One animated circuit is worth a thousand equations and diagrams. Animations of voltages, currents, and charges are displayed right on top of the schematic, providing great insight into circuit operation. The real-time circuit simulation engine is custom-built for speed and interactivity. Easy one-click simulation, from simple resistors and logic gates to complex transistor-level oscillators and mixed-signal designs. While the simulation is running, you can flip switches, adjust potentiometers, tune LED current limiting resistors, ramp up input voltages, etc. The circuit will immediately respond to your changes, in real time. Mini-waveforms on top of schematic wires look different for digital and analog signals. Constant analog voltages are shown as numbers, digital wires are color-coded. Any pair of time-domain signals may be plotted in the XY mode. The oscilloscope scale and grid ticks are auto-updated to convenient values as the data changes.Starting Price: $15 one-time payment -
3
TopSpice
TopSpice
TopSpice is a true analog/digital/behavioral mixed-mode circuit simulator for the PC. It offers the most advanced SPICE simulator in its price range, compatibility, an easy to use integrated design environment from schematic capture to graphical waveform analysis, and full 64-bit operation for faster performance and larger memory space. With TopSpice you have the choice to design from schematic drawings, text netlist (SPICE) files, or both. All design and simulation functions are available from either the schematic or netlist editor front-ends. TopSpice includes a native full-featured mixed-mode mixed-signal circuit simulator capable of simulating circuits containing any arbitrary combination of analog devices, digital functions and high-level behavioral blocks. With TopSpice you can verify and optimize your design from the system to the transistor level.Starting Price: $595 one-time payment -
4
PrimeSim HSPICE
Synopsys
PrimeSim HSPICE circuit simulator is the industry's "gold standard" for accurate circuit simulation and offers foundry-certified MOS device models with state-of-the-art simulation and analysis algorithms. With over 25 years of successful design tape outs, HSPICE is the industry's most trusted and comprehensive circuit simulator. For on-chip simulation, analog designs, RF design, custom digital design, standard cell design and characterization, memory design and characterization, and device model development. For off-chip signal integrity simulation, silicon-to-package-to-board-to-backplane analysis and simulation. HSPICE is a key part of the Synopsys analog/mixed-signal (AMS) verification suite, a solution built to address the most critical issues in AMS verification. HSPICE is the industry’s “gold standard” for accurate circuit simulation and offers foundry-certified MOS device models with state-of-the-art simulation and analysis algorithms. -
5
PROTO
PROTO
Learn electronics by using examples in PROTO application, and try many components available in our application. You can use resistors, diodes, transistors, and much more. Observe signals on a channel oscilloscope and analyze them with ease. During simulation, you can check voltages, currents and many other variables. Check signals on the multichannel oscilloscope and tune your circuit in real-time. Our app can greatly help with your Raspberry Pi, Arduino or ESP32 project. You can also use PROTO as logic circuit simulator and perform digital electronic analysis. -
6
CircuitLogix
Logic Design
It gives you the flexibility to design and test electronic circuits, trying all the "what if" scenarios without ever worrying about faulty parts or bad connections. CircuitLogix supports analog, digital and mixed-signal circuits, and its proven SPICE simulation gives accurate real-world results you can trust. 3DLab is included with both versions of CircuitLogix and is a "virtual reality"-type of lab environment and is designed to closely replicate the appearance and functionality of actual devices and instruments. There are approximately 30 different devices and instruments available in 3DLab, including batteries, switches, meters, lamps, resistors, inductors, capacitors, fuses, oscilloscopes, logic analyzers and frequency counters.Starting Price: $145 one-time payment -
7
PathWave Advanced Design System (ADS)
Keysight Technologies
PathWave ADS offers integrated design guidance via templates to help you get started faster. Extensive component libraries make it easy to find the part you want. Automatic sync with layout allows you to visualize the physical layout while making schematic designs. Data helps teams visualize whether their designs meet specifications. The data display and analytics capabilities in PathWave ADS produce graphs, charts, and diagrams to give you design confidence. Quickly accelerate your design with wizards, design guides, and templates. The complete design flow includes schematic, layout, circuit, electro-thermal, and electromagnetic simulations. Signal and power integrity are becoming more important as frequency and speed increase in printed circuit boards (PCBs). Losses associated with transmission line effects can cause failures in electronic devices. Modeling traces, vias, and interconnects are necessary to simulate the board accurately. -
8
PathWave EM Design
Keysight Technologies
Electromagnetic (EM) simulation brings you insight before physical prototyping. Customize EM simulations for speed and accuracy. Integrate EM analysis with your circuit simulations. EM simulations can take hours to run. Shorten your import and export time by integrating your EM simulation software with PathWave Circuit Design software. Integrate EM analysis with circuit simulations to maximize efficiency. 3D EM solid modeling environment for creating arbitrary 3D objects and importing existing 3D models from other CAD environments. Prerequisite for preparing a 3D geometry for 3DEM simulation by defining ports, boundary conditions and material properties. 3D EM solid modeling environment and Finite Difference Time Domain (FDTD) simulator. Compliance testing for Specific Absorption Rate (SAR) and Hearing Aid Compatibility (HAC). -
9
Microwave Office
Cadence Design Systems
Microwave Office supports the design of RF passive components such as filters, couplers, and attenuators, as well as active devices operating under small-signal (AC) conditions such as low noise and buffer amplifiers. The linear configuration provides simulation of S-parameters (Y/Z/H/ABCD), small-signal gain, linear stability, noise figure, return loss/voltage standing wave ratio (VSWR), and more, as well as real-time tuning, optimization, and yield analysis. All E-series Microwave Office portfolios include synchronous schematic / layout editors, 2D/3D viewers, comprehensive libraries of high-frequency distributed transmission models, surface-mount vendor component RF models with footprints, measurement-based simulations, and RF plotting. Microwave Office PCB enables linear and nonlinear RF circuit design with the robust APLAC HB simulator and its powerful multi-rate HB, transient-assisted HB, and time-variant simulation engine, supporting analysis of RF/microwave circuits. -
10
DCACLab
DCACLab
Our online circuit simulator bridges the gap between theory and practice with an intuitive interface. It allows you to design, simulate, and share electronic circuits online, witnessing the interplay of components in real-time. You can directly observe and manipulate the behavior of circuits, making learning more engaging and effective. For educators, DCACLab enhances your lessons with interactive diagrams and live demonstrations. For students, it provides a safe space to experiment and learn, leading to a deeper understanding of electronics. With DCACLab, frustration turns into hands-on learning and comprehension. Discover the power of a realistic multimeter in our interactive simulator. With functions for measuring ohm, voltage, and resistance, it provides an enriching and realistic learning experience. Dive into the world of electronics with ease and understanding.Starting Price: $9 per month -
11
MPLAB Mindi Analog Simulator
Microchip Technology
MPLAB® Mindi™ Analog Simulator reduces circuit design time and design risk by simulating analog circuits prior to hardware prototyping. The simulation tool uses a SIMetrix/SIMPLIS simulation environment, with options to use SPICE or piecewise linear modeling, that can cover a very wide set of possible simulation needs. This capable simulation interface is paired with proprietary model files from Microchip to model specific Microchip analog components in addition to generic circuit devices. This simulation tool installs and runs locally on your PC. Once downloaded, no Internet connection is required, and the simulation run time is not dependent on a remotely located server. The result is fast, accurate analog circuit simulations. Run the simulation tool directly on your own PC; once installed no Internet connection is required. -
12
LTspice
Analog Devices
Its graphical schematic capture interface allows you to probe schematics and produce simulation results, which can be explored further through the built-in waveform viewer. The key to most circuit designs is the speed with which you can reach an understanding of your circuit, its correctness, and its limitations. LTspice outperforms many other simulation tools and enables you to iterate your designs in minimal time. Keyboard shortcuts are an alternate way to invoke one or more commands in LTspice that would otherwise only be accessible by clicking through the menu or toolbar. Our extensive collection of technical resources tackles a wide range of LTspice topics. Learn how to use transformers, add third-party models, create, work with symbols, and more.Starting Price: Free -
13
Multisim
NI
Multisim ™ software integrates industry standard spice simulation with an interactive schematic environment to instantly visualize and analyze the behavior of electronic circuits. Its intuitive interface helps teachers reinforce circuit theory and improve theory retention throughout the engineering curriculum. By adding powerful circuit simulation and analysis to the design flow, Multisim ™ helps researchers and designers reduce iterations of printed circuit board (PCB) prototypes and save development costs. Multisim ™ for Education is circuit teaching application software for analog, digital and power electronics courses and labs. Multisim ™ provides engineers with the SPICE simulation, analysis and PCB design tools to rapidly iterate on designs and improve prototype performance. -
14
CoPlot
CoHort Software
CoPlot Version 6.45 is an incredibly versatile program for making publication-quality 2D and 3D scientific graphs (which plot data and equations), maps, and technical drawings. Every aspect of CoPlot has been designed around one basic goal: to make a program that is so versatile that scientists and engineers can easily get exactly what they want. CoPlot includes CoStat for data handling and statistics. Create precise technical drawings with CoPlot's versatile drawing objects. CoPlot is ideal for creating genetic maps, field maps, flow charts, apparatus diagrams, circuit diagrams, chemical structures, etc. See the sample drawings.The text in drawing objects and graphs can include HTML-like text formatting tags and over 1000 special characters. Make great scientific graphs and maps. CoPlot has seven basic types of graphs, over 40 ways of plotting data, 18 ways to plot equations, incredibly flexible attributes, asymmetric and horizontal error bars, 12 different axis types, etc.Starting Price: $280 one-time payment -
15
TINACloud
DesignSoft
TINACloud is the cloud-based multi-language online version of the popular TINA software now running in your browser without any installation and anywhere in the world. You can subscribe to TINACloud for a fraction of the price of TINA, or if you purchase a license for the downloadable TINA program, we are offering a special bundle of TINACloud with all new private licenses of downloadable TINA. This page is dedicated to TINACloud. For more information on the downloadable offline TINA software, which you can install on your computer. TINACloud is a powerful, industrial strength, online circuit simulator tool that allows to analysis & design of analog, digital, VHDL, Verilog, Verilog A & AMS, MCU, and mixed electronic circuits including also SMPS, RF, communication, and optoelectronic circuits and test microcontroller applications in a mixed circuit environment.Starting Price: $159 one-time payment -
16
Ansys Exalto
Ansys
Ansys Exalto is a post-LVS RLCk extraction software solution that enables IC designers to accurately capture unknown crosstalk among different blocks in the design hierarchy by extracting lumped-element parasitics and generating an accurate model for electrical, magnetic and substrate coupling. Exalto interfaces with most LVS tools and can complement the RC extraction tool of your choice. Ansys Exalto post-LVS RLCk extraction lets IC designers accurately predict electromagnetic and substrate coupling effects for signoff on circuits that were previously "too big to analyze.” The extracted models are back-annotated to the schematic or netlist, and support all circuit simulators. The proliferation of RF and high-speed circuits in modern silicon systems has raised electromagnetic coupling to a first order effect that must be accurately modeled to reliably achieve silicon success. -
17
RFPro Circuit
Keysight
Go beyond traditional RF simulation to design, analyze, and verify radio frequency integrated circuits (RFICs). Achieve confidence with steady-state and nonlinear solvers for design and verification. Wireless standard libraries accelerate the validation of complex RFICs. Model components on silicon chips accurately. Optimize designs with sweeps and load-pull analysis. Simulate RF designs in the Cadence Virtuoso and Synopsys Custom Compiler environments. Increase performance using Monte Carlo and yield analysis. Assess error vector magnitude (EVM) for the latest communication standards early in the design phase. Use the latest foundry technology immediately. Monitoring system IC specifications such as EVM via RF simulation early in the RFIC design phase is a must. Simulations include effects of layout parasitics, complex modulated signals, and digital control circuitry. With Keysight RFPro Circuit, you can simulate in both the frequency and time domain. -
18
Ansys Pharos
Ansys
Pharos combines Ansys' unparalleled EM engine capacity with a proprietary high-capacity circuit simulation engine to perform coupling analysis and provide ranking of potential EM crosstalk aggressors per victim node. By highlighting the most susceptible nets, designers can focus their design decisions to manage EM crosstalk on these nets and de-risk the design process. Pharos combines unparalleled extraction engine capacity with a built-in simulation engine to perform EM analysis and provide ranking of potential EM crosstalk aggressors per victim net. This allows designers to focus on the most critical nets in the design. Increasing design complexity, along with the broad scope of magnetic field interference, makes identifying all EM crosstalk susceptible victim/aggressor net pairs a very challenging, if not impossible, task. -
19
Intel Quantum Simulator
Intel Quantum Simulator
It is based on a complete representation of the qubit state but avoids the explicit representation of gates and other quantum operations in terms of matrices. Intel-QS uses the MPI (message-passing-interface) protocol to handle communication between the distributed resources used to store and manipulate quantum states. Intel-QS builds as a shared library which, once linked to the application program, allows to take advantage of the high-performance implementation of circuit simulations. The library can be built on a variety of different systems, from laptops to HPC server systems. -
20
NL5 Circuit Simulator
Sidelinesoft
There are plenty of circuit simulators available on the market. Just read their ads: high performance, extremely fast, industry-standard (i.e. SPICE), easy to use, highly intuitive. If you want to see if a tool is worth using, try it yourself. That's what many NL5 users already did. I hope they will share their encouraging stories soon. A few words about what should you expect from NL5. It is not one more SPICE (and not even close), nor is it a SPICE replacement. For some tasks NL5 is far superior, for others simply good, and some tasks are not for NL5 at all.Starting Price: $500 one-time payment -
21
PathWave RFIC Design
Keysight Technologies
Go beyond traditional RF simulation to design, analyze, and verify radio frequency integrated circuits (RFICs). Achieve confidence with steady-state and nonlinear solvers for design and verification. Wireless standard libraries accelerate the validation of complex RFICs. Before taping out an RFIC, verification of IC specifications via RF simulation is a must. Simulations include effects of layout parasitics, complex modulated signals, and digital control circuitry. With PathWave RFIC Design, you can simulate in both the frequency and time domain and bring your designs to and from Cadence Virtuoso. Accurately model components on silicon chips. Optimize designs with sweeps and load-pull analysis. Integrate RF designs in the Cadence Virtuoso environment. Increase performance using Monte Carlo and yield analysis. Simplify debugging with safe operating area warnings. Utilize the latest foundry technology immediately. -
22
eCADSTAR
Zuken
Companies today are faced with complex design challenges and tight budgets. eCADSTAR is more than a PCB layout tool with simulation, 3D MCAD integration, and wire harness support all built on the latest technology for enterprise-level performance at an affordable cost. The modern intuitive UI makes eCADSTAR a compelling solution for all designers. Leverage eCADSTAR’s design capabilities to simplify and accelerate the design process. With the digitally connected library, intuitive schematic capture, and tools to accelerate PCB layout engineers spend less time manipulating the tool and more time doing what they do best, innovate creative solutions for today’s technological challenges. One of the most time-consuming parts of the design process is the test plan. The validation process can be costly in terms of time and money without adequate upfront simulation. eCADSTAR’s capabilities in Spice simulation and SI/PI analysis delivers test cycle time reductions.Starting Price: $3,995 one-time payment -
23
CircuitHawk
BQR Reliability Engineering
Today’s electronic designs are becoming increasingly complex, making it harder to detect errors that generate high costs and hundreds of work hours. Detecting these errors in advance can be instrumental in preventing these damages. Unfortunately, in many cases, these errors are discovered only in the testing phase or at the customer’s site. BQR’s CircuitHawk is a powerful and unique (patent based) design error detection and stress analysis tool for electrical circuits. CircuitHawk detects design errors during the design phase, before layout and production. This way, no schematic, connectivity or stress errors are found in the qualification tests during final verification. CircuitHawk shortens design cycles and time to market, which in turn saves a lot of money and helps bolster corporate reputation. CircuitHawk is the only tool integrating design error detection with electrical stresses, thermal, MTBF and service life prediction at the schematic level, before PCB layout and production. -
24
Analog FastSPICE Platform
Siemens
Foundry-certified, the AFS Platform delivers nm SPICE accuracy, 5x faster than traditional SPICE and >2x faster than parallel SPICE simulators. Offering the fastest nm circuit verification platform for analog, RF, mixed-signal, and custom digital circuits. Now includes new eXTreme technology. For large post-layout circuits, the new AFS eXTreme technology delivers over 100M-element capacity and is 3x faster than post-layout simulators. Supports all leading digital solvers. Best-in-class usability, allowing maximum reuse of verification infrastructure. Advanced verification and debug capabilities to improve verification coverage. Improved design quality, and time-to-market. SPICE accurate, high-sigma verification. 1000x faster than brute-force simulation. Easy to use, and deploy. AFS eXTreme technology is available at no additional cost. -
25
SignalWire Events
SignalWire
SignalWire Events is a video-first events platform that offers your audience a connected experience unlike any other. Customize the experience or let us manage it for you. SignalWire Events brings the same interactivity to virtual events as you get when you are all in the same physical venue. Unlike Webinar platforms, SignalWire Events gives you the control to curate your event, and our team can even help you manage the interaction. SignalWire Events brings your presenters and your audiences together, enabling the presenters to react to audiences and for audiences to feed off each other. SignalWire Events enables video-first interaction across one or more presenters, prerecorded video content, and audiences. SignalWire Events presents a video-first virtual venue consisting of one or more rooms or video resources enabling attendees to walk the hall, pop into sessions, interact casually with other attendees, or even attend private areas. -
26
Investar
Investar
Scan for buy/sell signals in multiple timeframes to get intraday, short-term and long-term ideas. Integrated technicals & fundamentals with expert advisors help in making better decisions. Auto-trendlines plotted automatically to find uptrends/downtrends and trendline breakouts. Supply/demand zones are plotted automatically in charts and used to scan for supply/demand zone breakouts. Use seamlessly across desktop and mobile with one-click synchronization of watchlists and data. 65+ technical indicators, 35+ drawing tools, 6-window chart layouts with stock and view sync modes, 190+ technical & fundamental scans auto-updating intraday scans with alerts. Multi-timeframe scans and custom timeframes. Trade directly from the software. Available with 1-min and 5-min real-time data. Proud to provide exceptional service to our happy customers for 13 years.Starting Price: $8.91 per month -
27
SIMetrix/SIMPLIS
SIMPLIS Technologies
It combines accuracy and speed in a full-featured design environment, enabling 10-50x faster simulation than SPICE for power supply designs. All features of SIMetrix Classic and uses the same GUI environment including its hierarchical schematic editor and waveform viewer. Rapidly locates the steady state operating point of a switching system without having to simulate the startup transient conditions. SPICE transistor and diode model conversion to SIMPLIS format. Converts SPICE models by running a SPICE simulation to perform parameter extraction. The advanced digital simulation library provides a wide variety of digital functions such as counters, ADCs, DACs and much more. -
28
Automation Studio
Famic Technologies
Automation Studio E9.0 – Educational Edition is an intuitive simulation platform that enables educators to train future technicians and engineers on hydraulic, pneumatic, electrical, and PLC systems through realistic, illustrated components and interactive virtual trainers. Since 1986, it has helped students build and troubleshoot circuits using libraries of thousands of 2D CAD and electrical symbols, plus 3D virtual systems via Unity 3D CAD. E9 adds a dedicated Forum for sharing demo files and custom libraries, premade virtual trainers for all technologies, remote e‑learning access, and tools to create digital twins of hardware. Users can customize symbol libraries, activate pre‑defined failures to develop troubleshooting skills, connect to real devices, and use virtual instruments (multimeter, clamp‑meter, oscilloscope, hydraulic tester, thermometer, manometer) to plot and analyze system behavior. -
29
TINA-TI
Texas Instruments
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes' voltages and waveforms. TINA's schematic capture is truly intuitive - a real quick start. TINA-TI installation requires approximately 500MB. Installation is straightforward and it can be uninstalled easily if you wish. We bet that you won't. TINA is a product of DesignSoft exclusively for Texas Instruments. This complimentary version is fully functional but does not support some other features available with the full version of TINA. -
30
Autodesk EAGLE
Autodesk
EAGLE is electronic design automation (EDA) software that lets printed circuit board (PCB) designers seamlessly connect schematic diagrams, component placement, PCB routing, and comprehensive library content. Bring your design to life with a wide range of PCB layout tools in EAGLE. Drag and drop reusable design blocks between your projects, complete with synchronized schematic and PCB circuitry. Validate your schematic design with a complete set of electronic rule checks, so your schematic can stay on track. All changes stay automatically in sync between your schematic and layout, so you can focus on the creative process. Control your design flow and avoid unexpected surprises with fully customizable PCB design rules and constraints. Worry-free libraries are ready for your next design. Find and place parts dynamically linked to our growing catalog.Starting Price: $60 per month -
31
COMSOL Multiphysics
Comsol Group
Simulate real-world designs, devices, and processes with multiphysics software from COMSOL. General-purpose simulation software based on advanced numerical methods. Fully coupled multiphysics and single-physics modeling capabilities. Complete modeling workflow, from geometry to postprocessing. User-friendly tools for building and deploying simulation apps. The COMSOL Multiphysics® software brings a user interface and experience that is always the same, regardless of engineering application and physics phenomena. Add-on modules provide specialized functionality for electromagnetics, structural mechanics, acoustics, fluid flow, heat transfer, and chemical engineering. Choose from a list of LiveLink™ products to interface directly with CAD and other third-party software. Deploy simulation applications with COMSOL Compiler™ and COMSOL Server™. Create physics-based models and simulation applications with this software platform. -
32
MantiumFlow
MantiumCAE
MantiumFlow supports using a command line mode. The user only has to supply the case location and choose the template he wishes to use. MantiumFlow will create the case and inform the user about issues or signal success. Working like this is the fastest way to create many cases. The GUI allows easier use of MantiumFlow as the user can click through the options and sees a list of setting he can modify if he pleases to. Using the GUI is also advantageous as the user can see the imported CAD files which helps making sure that all parts are placed appropriately. MantiumFlow is mainly developed for incompressible external aerodynamics simulations. As result, a report is created with plots showing convergence, forces and many visualizations of the flow field. MantiumFlow automatically creates the mesh with a certain level of automatic refinement region selection. Rotating geometry can be modeled by applying a rotating wall boundary condition on those walls.Starting Price: €1,750 per 3 months -
33
MPLAB Analog Designer
Microchip Technology
Choose an existing power solution or customize a suggested design. Schematics and component lists are included. View or modify your choice and, with one click, export the design files to MPLAB® Mindi™ Analog Simulator for verification and analysis. Do you need help calculating your signal chain noise budget? The signal chain signal-to-noise calculator tool provides a simple, intuitive and flexible full noise analysis of your signal chain. Streamlined interface requires minimal data from inputs. Integrated design generators for starting new power designs or refining old designs. Easy transition from power solution selection to design verification. Signal chain signal-to-noise calculator is fully online with no software download required. -
34
Capital X Panel Designer
Siemens
Capital X Panel Designer is a cloud-native electrical CAD solution that simplifies complex electrical design processes. It features a drag-and-drop interface, smart schematic automation tools, and real-time collaboration capabilities, allowing users to create circuits quickly and efficiently. It supports automatic wiring, symbol and wire tagging, circuit reuse, and real-time cross-referencing. Accessible via web browsers on various devices, it offers intelligent numbering for symbols and wires, automatic terminal generation, and seamless integration with cloud services. Designed for ease of use, it requires no downloads or installations, enabling teams to collaborate globally with version control and secure access permissions.Starting Price: $93.45 per month -
35
AutoCAD Electrical
Autodesk
Efficiently create, modify, and document electrical controls systems with an industry-specific toolset for electrical design. Generate and update customized reports. Easily share DWG™ drawings with stakeholders. Use folders to organize drawings and reorder files for electrical drafting projects. Publish schematics to multipage PDFs. Reduce errors with automatic numbers for wires and tags for components. Use Circuit Builder for simple electrical design. Select from a rich library of electrical symbols. Catch problems before the build phase begins. Keep track of parent/child contacts in real-time. Define a project's I/O assignments. Enhanced preview and direct component insertion. Integrated mechatronics solution with Inventor. Coil and contact cross-referencing, PLC I/O drawings from spreadsheets, catalog browser for parts, real-time error checking, electrical schematic symbol libraries, circuit design and reuse, wire numbering, component tagging, and more.Starting Price: $220 per month -
36
Altair PSIM
Altair
PSIM has been a leading power electronics and motor drive simulation and design software for over 25 years. With an intuitive, user-friendly interface and a robust simulation engine, PSIM is the all-in-one solution that meets users’ simulation and design needs. PSIM can handle quick power converter loss calculations, motor drive efficiency calculations, conducted EMI analysis, and analog/digital control. PSIM also offers automatic embedded code generation for rapid control prototyping. Additionally, with PSIM’s various Design Suites, users can design power supplies, electromagnetic interference (EMI) filters, and motor drive systems quickly and conveniently. -
37
MotorGraph
TRL Software
MotorGraph has been developed by TRL to provide managers and operators with timely and relevant information about the network. The technologies used to aid efficient operation of the road network include the Motorway Incident Detection and Automatic Signalling (MIDAS) system and Managed Motorways. MotorGraph is a key tool in assessing the performance of these systems. MotorGraph provides plots for all major stretches of motorway across England that have traffic detection and signalling installed. This unique facility provides all available real-time and historic data in one place, allowing users to access and interpret information about all systems on instrumented motorways. The live and historic information provided by MotorGraph allows licenced users to assess and track operational performance of control systems on motorways; monitor live and historic traffic patterns; optimise traffic control systems and identify sources and causes of congestion. -
38
Simulink
MathWorks
Design and simulate your system in Simulink before moving to hardware. Explore and implement designs that you wouldn’t otherwise consider – without having to write C, C++, or HDL code. Explore a wide design space by modeling the system under test and the physical plant. Your entire team can use one multi-domain environment to simulate how all parts of the system behave. Package and share your simulations with collaborators, suppliers, and clients. Reduce expensive prototypes by testing your system under conditions that are otherwise too risky or time-consuming to consider. Validate your design with hardware-in-the-loop testing and rapid prototyping. Maintain traceability from requirements to design to code. Instead of writing thousands of lines of code by hand, automatically generate production-quality C and HDL code that behaves the same way as the model you created in Simulink. Then deploy it directly onto your embedded processor or FPGA/ASIC.Starting Price: $860 per year -
39
Siemens Solido
Siemens
The Solido variation-aware design, IP validation, library characterization, and simulation solutions, powered by proprietary AI-enabled technologies, are used by 1000s of designers at the top semiconductor companies worldwide. Integrated suite of AI-accelerated SPICE, Fast SPICE, and mixed-signal simulators designed to help customers dramatically accelerate critical design and verification for next-generation analog, mixed-signal, and custom IC designs. Providing the industry's fastest, most comprehensive integrated IP validation solution, providing complete, seamless IP QA from design to tape-out, across all design views and IP revisions. Comprehensive AI-powered design environment for nominal and variation-aware verification of custom IC circuitry enabling full design coverage in orders-of-magnitude fewer simulations, with the accuracy of brute-force techniques. Providing fast, accurate library characterization tools powered by machine learning. -
40
Quantum Programming Studio
Quantum Programming Studio
Circuit can be exported to multiple quantum programming languages/frameworks and can be executed on various simulators and quantum computers. You can use simple drag & drop user interface to assemble circuit diagram which automatically translates to code, and vice versa - you can type the code and the diagram is updated accordingly. QPS Client is running on your local machine (or in the cloud) where your quantum programming environment is installed. It opens a secure websocket connection with Quantum Programming Studio server and executes quantum circuits (that you design in the web UI) on your local simulator or on a real quantum computer. -
41
LigPlot+
EMBL-EBI
LigPlot+ is a successor to our original LIGPLOT program for the automatic generation of 2D ligand-protein interaction diagrams. It is run from an intuitive java interface that allows on-screen editing of the plots via mouse click-and-drag operations. In addition to the new interface, the program includes several major enhancements over the old version. When two or more ligand-protein complexes are sufficiently similar, LigPlot+ can automatically display their interaction diagrams either superposed or side by side. Any conserved interactions are highlighted. The LigPlot+ suite also now includes an update of the original DIMPLOT program for plotting protein-protein or domain-domain interactions. Users can flexibly select the interface of interest and DIMPLOT will then generate a diagram showing the residue-residue interactions across the interface. To assist in interpretation, the residues in one of the interfaces can be optionally displayed in sequence order. -
42
PyQtGraph
PyQtGraph
PyQtGraph is a pure-python graphics and GUI library built on PyQt/PySide and NumPy. It is intended for use in mathematics/scientific/engineering applications. Despite being written entirely in python, the library is very fast due to its heavy leverage of NumPy for number crunching and Qt's GraphicsView framework for fast display. PyQtGraph is distributed under the MIT open-source license. Basic 2D plotting in interactive view boxes. Line and scatter plots. Data can be panned/scaled by mouse. Fast drawing for real-time data display and interaction. Displays most data types (int or float; any bit depth; RGB, RGBA, or luminance). Functions for slicing multidimensional images at arbitrary angles (great for MRI data). Rapid update for video display or real-time interaction. Image display with interactive lookup tables and level control. Mesh rendering with isosurface generation. Interactive viewports rotate/zoom with mouse. Basic 3D scenegraph for easier programming.Starting Price: Free -
43
KiCad EDA
KiCad EDA
With the schematic editor you can create your design without limit, there are no paywalls to unlock features. An official library for schematic symbols and a built-in schematic symbol editor help you get started quickly with your designs. Make professional PCB layouts with up to 32 copper layers. KiCad now has a push and shove router which is capable of routing differential pairs and interactively tuning trace lengths. KiCad includes a 3D viewer which you can use to inspect your design in an interactive canvas. You can rotate and pan around to inspect details that are difficult to inspect on a 2D view. Multiple rendering options allow you to modify the aesthetic appearance of the board or to hide and show features for easier inspection. KiCad’s schematic capture is efficient, with all the tools you can expect for such a task. The interface focuses on productivity. There are no complexity limits, as large designs can be divided into hierarchical subsheets. -
44
Paraxia-Plus-10
Sciopt Enterprises
With origins from Stanford U., Paraxia-Plus-10 is a Windows based optical design program specifically optimized for laser resonator and laser beam propagation applications. Its drag and drop layout mode enables real time visualization of beam properties using the “Digital Laser Workbench”. Laser engineers/designers can access laser beam data not generally available from geometric ray tracing optical design codes. Tools include optimization, tolerance analysis, stability plots, and FFT based rigorous beam propagation of arbitrary input beams. This enables simulation of diffraction effects and beam deviations from decentered and/or laser damaged components. Waist size and location is listed relative to each component, and beam diameter and beam radius of curvature is available anywhere along the beam path. Users can supply code to extend capabilities, and to enable scripting. The program is used worldwide by, consultants, laser companies, & govt. labs, often with multiple copies.Starting Price: $1,750 one time fee -
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RunMat
Dystr
RunMat (by Dystr) is a fast, free, open-source alternative for running MATLAB code. Users can run their existing MATLAB code with complete language grammar and core semantics. No license fees, no lock-in. RunMat is built with a modern compiler, which enables blazing-fast calculations. It boots in 5 milliseconds, GPU optimization is enabled by default, and it's a single, compact, cross-platform binary. Typical engineering use cases - Controls/signal processing & numerics: accelerate MATLAB-style loops plus heavy linear algebra; enjoy faster iteration due to instant startup and tiered JIT. - Batch/CI & serverless jobs: snapshots + compact binaries make it easy to run .m workloads in containers or ephemeral runners at scale. - Plot-heavy workflows: interactive GPU plots for exploratory analysis and reportable exports for stakeholders. - Education: remove license friction and start labs instantly; Jupyter kernel supports reproducible worksheets.Starting Price: $0 -
46
OptSim
Synopsys
Synopsys OptSim is an award-winning photonic integrated circuit (PIC) and fiber-optic system simulator that enables engineers to design and optimize photonic circuits and systems. It offers state-of-the-art time- and frequency-domain split-step algorithms, providing a native photonic-domain environment for accurate simulations. OptSim can function as a standalone solution with its own graphical user interface or integrate into the OptoCompiler Photonic IC design platform. When integrated with OptoCompiler, OptSim supports electro-optic co-simulation with Synopsys PrimeSim HSPICE and PrimeSim SPICE electrical circuit simulators, and seamlessly integrates with the PrimeWave Design Environment for advanced simulation, analyses, and visualization, including parametric scans, Monte Carlo, and corner analyses. The software includes extensive libraries of photonic and electronic components and analysis tools, and supports numerous foundry process design kits (PDKs). -
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ACE
u-he
Compact, clear, careful selection of modules and semi-modular architecture makes ACE easy to learn. Simple but not simplistic. Compact but not limited, clear but definitely not underpowered. With the ability to connect any output to any input, ACE is a powerful synth with tools and features ready for beginners or seasoned users. The “boxes and cables” philosophy of modular synthesizers gives you the freedom to create your own custom instruments. Once you start connecting the sixteen modules in ACE, exploring new combinations, and cross-pollinating ideas, the vast potential of modular soon becomes clear. The two VCOs act as the main sound generators, but as ACE does not differentiate between audio and control (modulation) signals, the full-range LFOs can also be used to generate audio frequencies. ACE’s oscillators are modeled on analog circuits, including instabilities and various non-linear characteristics.Starting Price: €69 one-time payment -
48
IAuto
Wuhan Zhiyoutu Technology Co., Ltd.
IAutoDraw is a multifunctional tool software for domestic office business drawing such as complex process diagrams, flow charts, lane charts，system topology diagrams, network topology charts ,circuit diagram, mind maps, Gantt charts, architecture diagrams, and also support process data simulation. It is based on process drawing components, it integrates tree components, Gantt chart components, mathematical curve and surface components. It also has real-time data source direct connection, dynamic simulation scripts, and other functions. It is a multifunctional tool. It has been widely used in various industries, especially in system design, process design, topology design, project schedule scheduling, mind tree hierarchical structure relationship design, process model simulation, industrial data monitoring, and other fields; The software is divided into a free trial version, And professional version, without any functional restrictions and a one-time fee can be used forever.Starting Price: $99 One-time fee license -
49
Kinemetrics PSD
Kinemetrics
PSD is a Windows application for seismological data processing. The quality of acquired data can be easily evaluated in the field, and the software allows event (.EVT) files of various versions (up through 1.50) to be read and processed. The PSD software package was created to help users perform frequency analysis of the signals. The software accepts an EVT file as the input file and performs the following functions: Signal/Noise Ratio is computed using the first 1024 points of the signal as the noise and 1024 points starting from the trigger point as the signal. Power Spectral Density is computed using the one-sided auto spectral density function. The user sets parameters such as corner filter, filter order and overlapping window. -
50
PathWave System Design
Keysight Technologies
Go beyond math-based modeling with a complete RF-aware design workflow, plus decades of Keysight measurement science in RF instrumentation, ready for any system architect. PathWave System Design offers the most advanced prototyping and design platform for complex RF systems with faster simulation speed, near-circuit fidelity, libraries for radar, electronic warfare, satellite, 5G, and WiFi, plus enterprise integration with numerous partners. Statistical models for propagation and channels can only take your system designs so far. Dynamic kinematic modeling for radar, electronic warfare, satellite, 5G, and automotive are all possible with connections to tools such as STK by AGI, an Ansys Company. Designers of advanced cellular systems need trusted reference libraries that are based on Keysight measurement science. Researchers exploring the next generation of communications signals need a flexible platform for physical layer development and testing.
