Best Free Engineering Software - Page 9
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Compare the Top Free Engineering Software as of September 2026 - Page 9
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1
MercuryDPM
MercuryDPM
MercuryDPM is an open source code for discrete particle simulations, designed to simulate the motion of particles or atoms by applying forces and torques from external body forces, such as gravity or magnetic fields, and from particle interaction laws. For granular particles, these forces are typically contact forces, including elastic, plastic, viscous, and frictional interactions, while molecular simulations can use interaction potentials such as Lennard-Jones. MercuryDPM is written as a versatile, object-oriented C++ code and is built to be understandable, flexible, and extensible for researchers and engineers who need to create new simulation models. It is developed extensively for granular applications, while remaining adaptable to other particle-based systems and long-range interactions. Its documentation guides users through installation, running simulations, visualization, analysis, and creating new MercuryDPM codes to model systems of their choice.Starting Price: Free -
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MFiX
National Energy Technology Laboratory
MFiX, or Multiphase Flow with Interphase eXchanges, is an open source multiphase flow solver and NETL’s flagship suite of computational fluid dynamics tool for modeling reacting multiphase flows. It has become a standard for comparing, implementing, and evaluating multiphase flow constitutive models, and has been applied to a diverse range of multiphase flow devices and industrial systems. MFiX provides multiple modeling approaches, including a Two-Fluid Model, Discrete Element Model, Coarse-Grained Particle DEM, Superquadric Particle DEM, Glued-Sphere Particle DEM, Particle-in-Cell model, hybrid methods, and a single-phase solver for pure granular flows. These models can be used to simulate gasifiers, circulating fluidized bed combustors, fluidized beds, fluid catalytic crackers, chemical looping combustion systems, and other particle-fluid systems involving hydrodynamics, heat transfer, species transport, and chemical reactions.Starting Price: Free -
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GROMACS
GROMACS
GROMACS is a free and open source suite for high-performance molecular dynamics and output analysis. It is a versatile package for simulating the Newtonian equations of motion for systems with hundreds to millions of particles, with a strong focus on materials modeling, biomolecular simulation, and particle-based systems. GROMACS is primarily designed for biochemical molecules such as proteins, lipids, and nucleic acids, which involve many complicated bonded interactions, but its speed in calculating nonbonded interactions also makes it useful for non-biological systems such as polymers and other materials. It can model ensembles of particles in liquid, solid, or gaseous states and supports a wide range of molecular dynamics workflows, from basic energy minimization and equilibration to production simulations and detailed trajectory analysis.Starting Price: Free -
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NAMD
Theoretical and Computational Biophysics Group
NAMD is a parallel molecular dynamics code designed for high-performance simulation of large biomolecular systems. Based on Charm++ parallel objects, it scales from desktop and laptop computers to high-end parallel platforms, hundreds of cores for typical simulations, and beyond 500,000 cores for the largest simulations. NAMD is built for researchers who need to simulate large molecular systems efficiently while preserving compatibility with widely used molecular modeling workflows. It uses the popular molecular graphics program VMD for simulation setup and trajectory analysis, and it is file-compatible with AMBER, CHARMM, and X-PLOR. It is designed to support biomolecular simulations involving proteins, membranes, nucleic acids, solvents, ions, and other molecular systems where atomic interactions and time-dependent motion need to be studied in detail.Starting Price: Free -
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ESPResSo
ESPResSo
ESPResSo, the Extensible Simulation Package for Research on Soft Matter, is a highly versatile open source simulation package for performing and analyzing scientific molecular dynamics and Monte Carlo many-particle simulations. It is designed as a universal tool for simulating a variety of soft matter systems, especially coarse-grained atomistic or bead-spring models used in physics, chemistry, molecular biology, and process engineering. ESPResSo can be used to simulate polymers, liquid crystals, colloids, polyelectrolytes, ferrofluids, gels, biological systems, DNA, lipid membranes, bacterial motion, and super-capacitors. In coarse-grained models, a group of atoms or molecules is treated as a single bead, allowing researchers to investigate larger time and length scales than would be practical with fully atomistic simulations. ESPResSo supports classical molecular dynamics simulations in different statistical ensembles.Starting Price: Free -
6
Rendervi
Rendervi
Rendervi is an AI render studio made by architects for architects, built to create consistent renders at the speed of AI. It is designed for architecture and visualization teams that care about quality, speed, and control, helping them enhance architectural renders, change materials, or push a model preview toward photorealism without losing the original design intent. Rendervi turns architectural previews into precise, client-ready renders with ready-to-use workflows for render mode, concept mode, photo-realism mode, material edit, material study, and upscaling. Teams can move from a sketch, wireframe, layout direction, SketchUp export, Revit preview, or raw CAD/BIM model view into a strong visual starting point much faster than a traditional visualization pipeline. It supports controlled edits for daylight, finishes, styling direction, environment, details, and materials while preserving layout, composition, geometry, and the core design logic.Starting Price: $12.99 per month -
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Relay Tripping Curves PRO2
PROTELECTSA
Relay Tripping Curves PRO2 (RTC2) is Windows desktop software built by protection engineers, for protection engineers. It plots trip curves for relays, circuit breakers, and transformers on a log-log plot, verifies selectivity between devices, and generates the complete technical report that real engineering work demands. Field test sets measure, but they don't relate the reading back to the primary system, plot the curve, or leave evidence that a setting actually coordinates. RTC2 solves that. Features: 7 relay brands, each mirroring the manufacturer's real display and native nomenclature, 10 circuit breaker trip units with L/S/I/G zones, Transformer damage curve per ANSI/IEEE C57.109-2018, inrush and short-circuit current, ΔT selectivity calculation between devices, PDF reports with primary-equivalent current, curve equation, plot, and signatures, Fully bilingual (English/Spanish), 100% offline Free DEMO with no time limit. Paid editions (perpetual license, one-time payment)Starting Price: Free demo -
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Fire Dynamics Simulator (FDS) is a free, open source tools for modeling and visualizing fire-driven flows. FDS is a computational fluid dynamics code that numerically solves a form of the Navier–Stokes equations for low-speed, thermally driven flow, with particular emphasis on smoke and heat transport from fires. It uses large-eddy simulation to represent complex fire-plume dynamics and can be applied to scenarios involving fire, wind, sprinklers, ventilation, geometry, materials, and other conditions that influence fire behavior. Users define a scenario through text-based input files, run the calculation with FDS, and analyze the resulting data. It displays output from FDS and CFAST simulations using OpenGL-based 3D graphics and scientific visualization methods, including animated smoke and tracer particles, two- and three-dimensional shaded contours, iso-surfaces, temperature fields, and flow vectors showing direction and magnitude.Starting Price: Free
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CircuitSim
CircuitSim
CircuitSim is a full SPICE circuit simulator with a 3,000+ component library and a modern schematic editor. No install, free to get started. Built for students, educators, and professionals. It runs in a browser tab and needs no admin rights, so it works on Chromebooks and locked-down school laptops. Run seven kinds of analysis: interactive, interactive operating point, transient, AC sweep, DC operating point, DC sweep, and parameter sweep. Results plot on oscilloscope-style charts, with probes you can drop anywhere in the circuit. Define custom parts from SPICE model text or import KiCad symbols. CircuitSim also imports Multisim Live designs ahead of that product's retirement on September 15, 2026. It is the only browser tool that opens .csim, .ms14, and .msjs files, and it rebuilds the schematic with wiring, placement, net labels, probes, and simulation settings intact. Classroom licensing adds seat assignment, anonymous student seats, and private student work.Starting Price: $2.99 -
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eFieldData
eFieldData
eFieldData is a complete electronic field data management system and cloud-based automated workflow platform built for construction materials testing, geotechnical engineering, and field inspection operations. It connects scheduling, work orders, mobile field data collection, laboratory testing, reporting, timesheets, invoicing, and client communication in one centralized workflow. Field technicians can use the iOS or Android mobile app to access project details, record asphalt, concrete, soil, and other test results, attach site photos, GPS-tag locations, and sync information in real time. Standardized electronic forms include preset calculations and support ASTM, AASHTO, and state DOT requirements, while automated validation helps reduce data-entry errors and improve consistency. Field samples flow directly into lab management, where technicians can track samples, complete testing, use predefined calculations, and generate reports without duplicate entry or manual matching.Starting Price: Free -
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ForneyVault
ForneyVault
ForneyVault is construction materials testing software designed to automate concrete QA/QC workflows from field testing through lab strength testing and office reporting. It integrates testing machines, third-party software, and project systems to eliminate manual errors, increase productivity, and produce reliable, traceable results. ForneyField is a mobile app that captures and syncs sample data and wet concrete properties, while ForneyLink provides a testing-machine interface that helps technicians work faster with minimal human error. ForneyTools gives users a central interface to manage sample data, projects, and report approval workflows. With the platform at the center of the testing environment, teams can eliminate manual specimen identification, testing steps, and data handoffs. Test results flow directly from the machine to the database and LIMS without being altered, reducing potential human failure points and supporting accurate results.Starting Price: $120 per month -
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Noodle Biomedical Literature Discovery
Helena Bioinformatics
Noodle is Helena Bioinformatics' free biomedical literature discovery platform for researchers, clinicians reviewing literature, and research software developers. Search by topic or publication identifier, inspect PMID, DOI and PMCID records, discover related papers, and explore citation links and semantic literature neighbourhoods in an interactive research trail. Source-linked publication records help users follow evidence back to the original research. A public, read-only MCP interface also makes these discovery functions available to compatible AI agents without authentication. Noodle is intended for research and literature review. Semantic similarity and graph proximity are discovery signals, not proof of causality or clinical recommendations. Research resource identifier: RRID:SCR_028920.Starting Price: Free -
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Powerlily
Powerlily
Powerlily is a solar operating system that brings design, proposals, CRM, permitting, field operations, invoicing, and fleet monitoring into one connected platform. It carries a customer from first contact through design, sale, installation, and long-term service without rebuilding the same project across separate tools. Teams can capture and qualify leads, preserve attribution, manage solar-native pipelines, and automate follow-up based on real events. Live 3D design supports roof, ground, carport, and commercial arrays with stringing, setbacks, shading, and 8,760-hour per-panel production simulation, while battery analysis connects usage, tariffs, incentives, and financing to hour-by-hour storage behavior and long-term value. Powerlily can generate editable single-line diagrams, coordinated permit-ready plan sets, branded proposals, e-signatures, invoices, and field schedules from the same project record.Starting Price: $20.83 per month -
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FlexSim
FlexSim Software Products, Inc.
FlexSim is a problem solving tool that allows you to accurately answer any question about your business. It's powerful simulation software, built from the ground up to make simulation as easy as possible, without sacrificing an ounce of function or visual appeal. You can create beautiful, detailed models that deliver results yet make an impact in the way spreadsheets or charts never could, and you can do it all in just minutes with drag-and-drop controls and easy-to-use features. -
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Hurricane for AutoCAD
74Mph Solutions
Batch edit your AutoCAD drawings in 3 clicks (or less), Make simple, complex and/or dynamic changes to each drawing. Manage your files to process. Keep lists, save "project" directories. Share these lists and "user-scripts". Combine user scripts to accomplish complex editing tasks. (You can even store scripts specific to each project, and retrieve them easily.) AutoCAD Electrical ".WDP" project file compatibility - Double-click an AutoCAD Electrical .WDP (Project) file within Hurricanes file selector, to quickly load an entire AutoCAD Electrical project into the FileQueue. This means you can EASILY use AutoCAD to Batch Plot your files, Batch Purge, Batch Bind, batch script anything, maximizing your PC's power to perform redundant tasks fast! Add more time-saving batch script functionality to AutoCAD Electrical, Mechanical, and Architectural. Batch all drawings run in a single AutoCAD session (They don't "open-run-close, open-run-close...")Starting Price: $99.95 one-time payment -
16
RoomSketcher
RoomSketcher
RoomSketcher is a leading floor plan software that makes it easy to create, edit, and share accurate and high-quality floor plans. An easy-to-learn drag-and-drop interface enables you to draw plans from scratch or order existing plans to be drawn for you through RoomSketcher's redraw services. 2D and 3D plans can be customized with accurate measurements, annotations, and company branding. RoomSketcher is available on desktops and tablets, and can be used anywhere with an internet connection, as projects are stored in the cloud and sync across devices. RoomSketcher is used by thousands of real estate professionals, interior designers, and general contractors all over the world. Save time, win clients, and elevate your marketing with RoomSketcher's impressive and professional floor plan visuals. -
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PTC Windchill
PTC
PTC Windchill is a comprehensive product lifecycle management (PLM) platform designed to help manufacturers improve collaboration, data sharing, and quality control across global teams. It provides secure, role-based access to real-time product data, enabling streamlined product development and manufacturing processes. Windchill’s open architecture allows seamless integration with enterprise systems like SAP ERP, supporting a connected digital thread. The platform includes advanced features such as BOM management, engineering change control, manufacturing process management, and supply chain collaboration. Windchill leverages AI-driven insights and automation to enhance decision-making, reduce manual tasks, and accelerate innovation. Its flexible delivery options include on-premises and cloud deployment to fit diverse IT strategies. -
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Docollab
Docollab
Research makes the world better, you deserve better research tools. LIMS and ELN: collaboration, project management, tasks, documents and spreadsheets with revision history and 100% compliant and backed up across all devices. Today's researchers hack their research process using standalone programs, note-taking on OneNote pasted into MS Word and Excel, sharing files via Dropbox, project management tools like Asana, then printing everything into a binder for PI and company compliance. Since 2007 Docollab has worked with leading organizations and institutions, under stringent workflow and compliance requirements, to create the most intuitive and robust platform for all your research needs whether you're an individual, small research team or a multi-national corporation. Intuitive structure to manage, maintain, and archive everything in one place (Electronic Lab Notebook). Structure your work, projects and files into folders and sub-folders.Starting Price: $25 per month -
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HomeByMe
Dassault Systemes
Discover our offers to take benefit from the best of HomeByMe. One time pack or subscription? Choose the one that suits you best. Have only one floor (multi floor plans will need to be submitted one floor per order, every order is delivered as a unique project). Indicate all the measures on your floor plan (we need at least one measure to make sure your project is on the right scale). Choose the furnished or unfurnished project offer and then upload your floor plan. Within 3 working days, be notified by email of the delivery of your 3D project. Customize your interior by adding different coverings, furniture and decorative accessories by choosing them from our catalog. Your 3D project will include all the walls, doors and windows defined on your floor plan. In each room of the 3D project we will place a minimalist starter set of furniture and a different floor type to show our breadth and capability. (Accessories, decorations, multi-level floors or exteriors are not included).Starting Price: $14.74 per month -
20
CAEplex
Seamplex
Just open a regular web browser such as Firefox or Chrome and search online for “caeplex.” It works in any operating system such as Windows, MacOS, GNU/Linux, iOS, Android, etc. The computations are performed on our servers so CAEplex works on any existing PC, laptop, tablet or phone without requiring any hardware update nor maintenance. No need to buy a new computer nor to add RAM to your oldie one. Our killer feature: “ease and speed.” A CAEplex case can be solved from scratch down to the results in less than one minute thanks to our 3-step workflow. If you know a faster FEA app, please let us know. CAEplex can be used from any mobile device such as a tablet or phones, no matter how old or wrecked. Access and show your work from any location at any time. Enjoy working in an agile development leveraging simulation (we rather say “modeling”), additive manufacturing, and mobile online collaboration.Starting Price: $25 per month -
21
WELSIM
WelSimulation LLC
WELSIM finite element analysis software helps engineers and researchers conduct simulation studies and prototype virtual products.Starting Price: $45 per user per month -
22
Home Designer
Chief Architect
Home Designer Software is the top-rated 3D interior design, remodeling and home design software. Based on technology from Chief Architect's professional architectural software, Home Designer is made easy for DIY. Discover why Home Designer is the best home design app to visualize and design your next house project. Chief Architect software is the professional tool of choice for architects, home builders, remodelers, and interior designers. Smart building technology makes it easy to create construction drawings, floor plans, elevations, 3D renderings, and 360 panoramic renderings. Chief Architect's software is purpose‑built for residential design with building tools that can automatically generate roofs, foundations, framing, and dimensions. As you draw walls, windows, and doors, the program simultaneously creates a 3D model. These 3D models can be shared with homeowners, structural engineers or subcontractors using the 3D Viewer app.Starting Price: $79 one-time payment -
23
HighDesign
ILEXSOFT
Drafting and architectural design in one, comprehensive software. All the tools you need to complete your project from start to success. In HighDesign Standard and Pro, extend the default resource libraries of line types, hatches, patterns, textures, styles an types. Annotate, dimension and document your project with standard-compliant tools and parametric properties. HighDesign imports and exports your project as DXF, DWG 2019, Tiff, Jpeg, Gif and PNG with alpha channel. Organize your project in a clean structure of layers, views, specialized sheets and styles. HighDesign's modern user interface simplifies complex tasks and keeps everything you need exactly where you need it. HighDesign R6 is available for Mac and Windows: it comes with the same interface, feature set and file format for both Mac and Windows platforms: this means that exchanging files and sharing resources between different machines and with external collaborators has never been so easy.Starting Price: $199 one-time payment -
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Innovative Binaries
Innovative Binaries
Our aircraft structural health diagnostics and prognostics comprise the acquisition of large data sets from aircraft sensors (including several sub-systems-avionics, landing gear, engine, etc.). Data adapters will transform these data sets to a neutral format data lake. This transformation will enable almost real-time anomaly fault detection, isolation, and potential degradation alerts. Suggested actions will reduce operating costs and increase safety and reliability of the fleet. The platform captures isolated sources of data to reveal important information about the health of the engine. Our approach helps to detect anomalies by producing an early-warning detection system. The alerts increase fleet reliability. Line and hangar maintenance shops can be assured of higher parts availability, higher throughput, reduced no-fault-found (NFF) incidences, parts inventory, and maintenance costs.Starting Price: $300.00/month -
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Electra Cloud
Radica Software
Electra® Cloud offers impressive benefits that more than save time or eliminate tedious work, it leaves the engineer free to focus on the important parts of a design, the control scheme, operations and safety of the entire machine. For many companies, creating and managing technical drawings efficiently are often critical to become competitive with direct impacts on a company's bottom line. Surprisingly, many companies are still using inefficient and costly methods, resulting in higher cost, lower productivity and technical drawings that are only accessible to a few people in an organization. Cut the amount of time a electrical engineer spends on generating electrical designs, and they could spend more time working with customers. The fact is, technical drawing is an invaluable resource and should be accessible to everyone in an organization.Starting Price: $99.00/month -
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AggreGate
Tibbo Systems
AggreGate is a white-label full-stack Internet of Things integration platform that drives a digital transformation of your enterprise from connecting the assets to "slicing and dicing" their data for discovering some valuable insights. The Platform and derived vertical products also help integrators, OEMs, telecoms, and MSPs render IoT services running both on the edge and in their cloud. Design and develop your consumer or industrial IoT app in days, deploy into production in weeks. Industrial automation and process control via the 4th generation SCADA/MES platform. Building Automation. Build a unified command and control center for your intelligent facility. Cut HVAC/energy and other operating costs. Deliver digital services for higher resident satisfaction. Data Center Supervisor. Manage both industrial and IT equipment of your data center via a single umbrella system. Design dynamic floor plans, build custom dashboards, integrate with DCIM. -
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Enterprise Dynamics
InControl Enterprise Dynamics
The world is constantly and rapidly changing. Bringing new challenges, technologies and possibilities each day. How do you keep up with these developments? How do we keep our world efficient, safe and sustainable? The key is to understand the impact of our behavior and the decisions we make. How should we design, operate, optimize and manage our cities, critical infrastructures, and supply chains? The InControl software solves these challenges in every phase of the life cycle. Transfer accessed data into predictive and reliable analytics to understand complex infrastructures. Share results and insights of complex and unpredictable settings to your stakeholders, partners, and clients. Related to time, costs, resources, productivity, reliability, safety, and sustainability. Simulation Software enables you to evaluate your potential and/or future resource investments. Streamline and integrate processes contributing to one time right deployment reducing time, effort and costs. -
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SMS Pro
NorthWest Data Solutions
SMS Pro is a globally supported organization consisting of aviation safety and high-tech business professionals. SMS Pro’s current mission includes military and civilian aviation, as well as commercial and military space travel. SMS Pro database currently facilitates the first FAA certificate application for any commercial space tourism company. SMS Pro’s compelling value for space travel companies comes from highly complex, intuitive integrations encompassing the entire aviation risk management lifecycle. SMS Pro is also an aviation risk management database supported by SMS Pro's members. There are multiple versions of this aviation SMS database. Globally, CAA SMS auditors and NASA advisors regularly compliment SMS Pro’s database with its well-constructed integrations. The SMS Pro database is user-friendly, compliant, compelling and promising, thereby enhancing evolving safety cultures across the entire aviation industry.Starting Price: $50 per month -
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KurtSPC Premium
Kurt Workholding
KurtSPC Premium statistical process control software allows you to collect data from most devices, and provide it at one location optimizing your manufacturing. Statistical process control (SPC) is used to monitor and control a process to ensure that this process operates at its full potential. At full potential, a manufacturing process is capable of creating as much conforming product as possible with a minimum of waste. KurtSPC Premium statistical process control software is a simple-to-configure, easy-to-use solution for process optimization. KurtSPC Premium software features user-definable collection fields, error codes, and graphical or text operator instructions. It supports voice and video, customized screens and reports, machine tool controls, and automated gauging. The software also supports almost all types of gages and metrology tools, networking, and Kurt’s unique and powerful Event/Actions.Starting Price: $1,195 one-time payment -
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myoRESEARCH
Noraxon USA
Seamlessly collect and combine a variety of data within a unified software platform. The integration of electromyography, force, pressure, motion, and high-speed video is complemented by automatic synchronization, creating a smarter workflow and reliable data. Collection, review, analysis, and reporting is now a streamlined process, even with data from many complex biomechanics recording systems. The myoRESEARCH® module configurations allow you to quickly select the devices to be used for your session and your data will be automatically time-synchronized. Customize your myoRESEARCH software to support any combination of Noraxon modules to fit your specific measurement needs. We now offer an analysis-only version of our software for free to current MR3 users. Whether you need to further your education, practice your techniques or simply want to process data outside the lab, we have you covered!
