Best Free Engineering Software - Page 8
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Compare the Top Free Engineering Software as of September 2026 - Page 8
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1
Factor AE
Factor AE
Factor AE is an intuitive firm management platform designed specifically for architecture and engineering companies to streamline project tracking, time entry, invoicing, and overall firm visibility. It allows firms to break down projects into fixed fee, hourly, and non-billable phases, facilitating detailed employee time and budget tracking at any level. The platform supports sub-consultant and expense tracking, either within project fees or separately, without compromising invoice simplicity. Factor AE enables firms to set timelines, create milestones, assign tasks, and schedule resources, ensuring client deadlines are met while optimizing resource utilization. It provides at-a-glance project status views, allowing for easy comparison of budgets and schedules to actuals by phase, revenue forecasting, and proactive adjustments to prevent minor issues from escalating.Starting Price: Free -
2
3DOptix
3DOptix
3DOptix is a cloud-based optical design and simulation platform that enables users to design, simulate, and refine optical systems efficiently. Leveraging cloud and GPU acceleration, it offers rapid analysis capabilities without the need for local installations. The platform provides access to an extensive library of off-the-shelf optical and optomechanical components, facilitating the creation of accurate digital twins of optical prototypes. Its intuitive 3D graphical interface features drag-and-drop functionality and real-time visualization, simplifying the design process. 3DOptix supports both sequential and non-sequential ray tracing, allowing for comprehensive modeling of complex optical systems. Additionally, it offers real-time collaboration tools, enabling multiple users to work on the same project simultaneously, with easy sharing via cloud links. The platform is accessible via any web browser, eliminating the need for specific hardware or software installations.Starting Price: $2,000 per year -
3
OpenModelica
OpenModelica
OpenModelica is an open source modeling and simulation environment based on the Modelica language, intended for industrial and academic use. Its development is supported by the Open Source Modelica Consortium (OSMC), a non-profit organization. The platform aims to provide a comprehensive Modelica modeling, compilation, and simulation environment distributed in both binary and source code forms for research, teaching, and industrial applications. OpenModelica supports the Modelica Standard Library and is compatible with various operating systems, including Windows, Linux, and macOS. It is designed to facilitate the development and execution of both low-level and high-level numerical algorithms, making it suitable for control system design, solving nonlinear equation systems, and developing optimization algorithms applied to complex applications. The platform also offers tools for debugging, visualization, and animation, enhancing the user experience in modeling and simulation tasks.Starting Price: Free -
4
OSSA 3D
Conceptualiz
OSSA 3D is a mobile iPad application designed to convert CT scans into accurate virtual 3D printable models. This easy-to-use medical 3D printing software solution enables healthcare professionals to create precise anatomical models for surgical planning and patient education. The OSSA3D iPad app allows healthcare providers, with no prior experience in 3D modeling, to easily create accurate 3D digital models quickly and automatically from medical imaging data with the touch of a finger. Our mobile iPad app virtual surgical planning and 3D printing software platform allows orthopedic surgeons to plan the steps of an operation on their patient; such as osteotomy, fracture reduction, screw placement, and plate templating. Automatic plate contouring makes templating easy and enables the development of custom plate designs. Various 3D implants, such as hip and knee replacements, can be imported and templated to fit the patient.Starting Price: $10,000 per year -
5
Universal Scene Description
Universal Scene Description
Universal Scene Description (USD) is an open source framework developed by Pixar Animation Studios for the interchange of 3D graphics data across various digital content creation tools. USD provides a rich and powerful toolset for reading, writing, editing, and rapidly previewing 3D scene data. With many of its features geared towards performance and large-scale collaboration among many artists, USD is ideal for the complexities of the modern pipeline. One such feature is Hydra, a high-performance preview renderer capable of interactively displaying large data sets. USD supports a variety of file formats, including usda, usdc, and usdz (a zero-compression, unencrypted zip archive), facilitating flexibility in data representation and exchange. The framework also includes tools like usdedit, a script that converts any single USD-readable file into its .usda text equivalent for easy editing.Starting Price: Free -
6
ARES Touch
Graebert
ARES Touch is a comprehensive mobile CAD solution for iOS and Android devices, enabling users to create and modify DWG drawings on tablets and smartphones with a full suite of 2D drafting and annotation commands. Optimized for touch inputs, it allows field workers to access, annotate, and synchronize drawings in real time, ensuring they always work with the latest versions. Users can view, annotate, and modify DWG files on the go, making it ideal for technical surveys, on-site inspections, maintenance, project coordination, client meetings, and facility management. It supports synchronization with popular cloud storage services like Dropbox, Box, iCloud, Google Drive, and OneDrive, allowing offline access when needed. It offers a complete set of 2D drafting tools, including precise drawing aids such as the loupe, entity snap, tracking, and coordinate input. Additionally, ARES Touch enables users to annotate drawings with pictures taken from the device's camera and text legends.Starting Price: Free -
7
PlanMan
PlanMan
PlanMan is a cloud-based project management software designed specifically for architects and town planners. It offers a comprehensive suite of features to streamline administrative tasks and enhance productivity. Users can manage unlimited clients, projects, quotes, and invoices, all stored securely in one place. It includes built-in cloud storage for all project documentation, eliminating the need for shared network drives. Each project has a built-in chat room for instant communication, and client emails are stored against the relevant project for easy access. PlanMan's client portal allows clients to log in and view their enquiries, quotes, projects, documents, and invoices 24/7. Clients can also pay invoices online through Stripe or GoCardless integrations. The software supports managing co-consultants, creating and sending quotes from project templates, and generating invoices for clients and suppliers.Starting Price: Free -
8
Robot Operating System (ROS)
Robot Operating System (ROS)
The Robot Operating System (ROS) is an open source set of software libraries and tools designed to aid in building robot applications. It provides services expected from an operating system, including hardware abstraction, low-level device control, implementation of commonly-used functionality, message-passing between processes, and package management. ROS offers tools and libraries for obtaining, building, writing, and running code across multiple computers. At its core, ROS provides a message-passing system, often called "middleware" or "plumbing," which manages communication between distributed nodes via an anonymous publish/subscribe pattern. This system is crucial for implementing new robot applications or any software system that interacts with hardware. ROS is a meta-operating system for robots, offering hardware abstraction, device drivers, libraries, visualizers, message-passing, package management, and more. It is licensed under an open source, BSD license.Starting Price: Free -
9
SCAPE CoCreator
SCAPE Technologies
SCAPE CoCreator is a no-code robotic automation platform that empowers users to build, simulate, and deploy robotic workflows without programming expertise. It seamlessly integrates hardware and software within a user-friendly environment, enabling the creation of robotic applications powered by 3D vision and AI. Users can test and validate solutions in a digital twin environment and on actual hardware, significantly reducing development time and costs, up to 95% compared to traditional methods. It supports effortless integration with 3D scanners conforming to the GenICam standard, ensuring smooth communication and operation. With support for Python and C++, CoCreator allows for the development of custom solutions tailored to specific tasks. Its intuitive interface enables users to create robotic applications without any coding, making it accessible to users of all skill levels.Starting Price: Free -
10
Gazebo
Gazebo
Gazebo is an open source robotics simulator that provides high-fidelity physics, rendering, and sensor models for developing and testing robot applications. It supports multiple physics engines, including ODE, Bullet, and Simbody, enabling accurate dynamics simulation. Gazebo offers advanced 3D graphics through rendering engines like OGRE v2, delivering realistic environments with high-quality lighting, shadows, and textures. It includes a wide array of sensors, such as laser range finders, 2D/3D cameras, IMUs, GPS, and more, with the ability to simulate sensor noise. Users can develop custom plugins for robot, sensor, and environment control, and interact with simulations via a plugin-based graphical interface powered by Gazebo GUI. Gazebo provides access to numerous robot models, including PR2, Pioneer2 DX, iRobot Create, and TurtleBot, and allows users to build new models using SDF.Starting Price: Free -
11
SkyCAD
SkyCAD
SkyCAD automates wire and component numbering, manages parts lists and BOMs, updates cross‑references, creates panel layout designs, and more. It features automated numbering, BOMs, and parts‑lists management, automated cross‑references, license sharing, and requires no training. With unique design‑reuse features such as design‑by‑systems and configuration management, the software ensures efficiency and consistency. It offers intuitive, user‑friendly tools for generating PLC and other component blocks automatically and can generate PLC drawings from an I/O list in Excel. The panel layout design is supported directly within the platform. SkyCAD supports European and American drawing styles. A rich tutorial library and responsive support forums empower users to get up to speed quickly. Standard (free) and advanced licenses are available, with the free license meeting the needs of many users and the advanced license providing additional features at a reasonable cost.Starting Price: $99 per month -
12
EasyCarve
Vectric
Quickly and easily carve 3D models on your CNC machine with EasyCarve. Powered by Design & Make, EasyCarve has access to over 7,000 CNC‑ready 3D relief models from its built‑in library. Follow the simple steps set out in the software to choose your 3D model, choose your material and tooling, generate and preview your toolpaths, and you’re all set to export your toolpath to carve on your CNC machine. Once you’ve loaded your model, choose your material and tooling to generate your toolpaths. Preview your toolpaths to make sure you’re happy with how it will carve. Simply save and export your toolpaths. Now you’re ready to head over to your CNC machine to start carving. Model styles include cut-out, dish, and recessed, enabling you to add 3D content to new and existing projects.Starting Price: $15 per month -
13
CarveCo Maker
CarveCo
The Carveco software range is available in three variants, each crafted to provide you with the freedom and flexibility to design and manufacture a range of 2D and 3D products quickly and easily. Carveco Maker is quick to learn and easy to use, with powerful design and manufacturing features that power up your CNC, making it great for small businesses or home hobbyists taking their first step into creating personalised products. Carveco Maker Plus builds on the Maker feature set by adding powerful 3D design, manufacturing, and productivity tools geared toward increasing the output, range, and efficiency of your manufacturing business. It introduces fades to relief artwork, complex weaves, direct sculpting with smooth and erase tools, spin and turn tools for circular relief, a fade relief tool for height control, and a cookie cutter to edit relief artwork.Starting Price: Free -
14
NVIDIA Isaac Sim
NVIDIA
NVIDIA Isaac Sim is an open source reference robotics simulation application built on NVIDIA Omniverse, enabling developers to design, simulate, test, and train AI-driven robots in physically realistic virtual environments. It is built atop Universal Scene Description (OpenUSD), offering full extensibility so developers can create custom simulators or seamlessly integrate Isaac Sim's capabilities into existing validation pipelines. The platform supports three essential workflows; large-scale synthetic data generation for training foundation models with photorealistic rendering and automatic ground truth labeling; software-in-the-loop testing, which connects actual robot software with simulated hardware to validate control and perception systems; and robot learning through NVIDIA’s Isaac Lab, which accelerates training of behaviors in simulation before real-world deployment. Isaac Sim delivers GPU-accelerated physics (via NVIDIA PhysX) and RTX-enabled sensor simulation.Starting Price: Free -
15
NVIDIA Isaac Lab
NVIDIA
NVIDIA Isaac Lab is a GPU‑accelerated, open source robot learning framework built on top of Isaac Sim, designed to unify and simplify robotics research workflows such as reinforcement learning, imitation learning, and motion planning. It leverages realistic sensor and physics simulation to support accurate training of embodied agents, providing ready‑to‑use environments, spanning manipulators, quadrupeds, and humanoids—with support for 30+ benchmark tasks and integration with popular RL libraries like RL Games, Stable Baselines, RSL RL, and SKRL. Isaac Lab features a modular, configuration‑driven design that enables developers to easily create, modify, and scale learning environments; it also supports collecting demonstrations via peripherals (gamepads, keyboards) and allows custom actuator models to facilitate sim‑to‑real transfer. The framework is built for both local and cloud deployment, accommodating flexible scaling of compute resources.Starting Price: Free -
16
TabLogs
TabLogs
TabLogs is a cloud-based, field-ready boring-log and geotechnical-data software solution designed to streamline the collection, management, and reporting of subsurface investigation information. It enables you to log boreholes on-site to internationally recognized standards, generating finished graphical logs, site plans, and sample registers in seconds, eliminating time-consuming back-office data entry. It supports adaptable boring-log data formats, allows you to query and manage your entire subsurface dataset in one central database, and incorporates features such as direct photo insertion, professional branding, workflow tracking, and self-service dashboards. It is built for both engineers and drillers, enabling large consultancies or government departments to consistently record high-quality data across sites and then provide clients with timely, report-ready deliverables ahead of competitors.Starting Price: $300 per month -
17
Tosi
Tosi
The Tosi Platform is a purpose-built Cyber-Physical Systems platform designed specifically to secure, connect, and control Operational Technology (OT) networks and critical infrastructure. Unlike traditional IT tools adapted for OT, Tosi was engineered from the ground up for industrial environments: it supports native industrial protocols, tolerates extreme temperatures, and requires no complicated configuration. Deployment is rapid, sites can be up and running in under five minutes with a “plug-and-go” setup, allowing organizations to connect distributed infrastructure quickly and securely without specialized IT expertise. It implements a zero-trust security model with enterprise-grade protections: end-to-end 256-bit AES encryption, hardware-based authentication (with RSA keys), no open inbound ports, and ISO/IEC 27001:2022 certification. With Tosi, you get unified, centralized management through a single interface (TosiControl), enabling visual network topology views.Starting Price: Free -
18
Edison Analysis
Edison Scientific
Edison Analysis is a next-generation scientific data-analysis agent built by Edison Scientific. It is the analytical engine underpinning their AI Scientist platform, Kosmos, and it’s available both on Edison’s platform and via API. Edison Analysis performs complex scientific data analysis by iteratively building and updating Jupyter notebooks in a dedicated environment; given a dataset plus a prompt, the agent explores, analyzes, and interprets the data to provide comprehensive insights, reports, and visualizations, very much like a human scientist. It supports execution of Python, R, and Bash code, and includes a full suite of common scientific-analysis packages in a Docker environment. Because all work is done within a notebook, the reasoning is fully transparent and auditable; users can inspect exactly how data was manipulated, which parameters were chosen, how conclusions were drawn, and can download the notebook and associated assets at any time.Starting Price: $50 per month -
19
TagoIO
TagoIO
TagoIO is a full-stack cloud software that lets users turn IoT sensor data into smart solutions without dealing with cloud complexity. It supports connecting and managing devices from more than 500 communication types, including LoRaWAN, NB-IoT, Wi-Fi, satellite, BLE, MQTT, and HTTP, with preconfigured connectors to decode device data into a standard format. It provides scalable device management, secure data storage, real-time visualization, custom analytics, automation, alerts, and multi-tenant access control so users can build dashboards, workflows, and logic in one environment. TagoIO simplifies building and deploying IoT applications with templates, drag-and-drop interfaces, and APIs while handling backend infrastructure, enabling rapid development and deployment. It offers advanced analytics to transform raw data into actionable insights and supports edge computing, mobile access, white-labeling, and integration with external systems.Starting Price: Free -
20
Breathe
Breathe
Breathe Battery Technologies provides a physics-based battery software toolchain that enables engineers and OEMs to design, simulate, validate, and control advanced battery systems with greater speed, accuracy, and performance than traditional empirical workflows. Its suite spans from cell design and simulation software, allowing rapid evaluation of ageing, thermal behavior, SoC/SoH estimators and system-level trade-offs, to embedded adaptive charging firmware that dynamically manages internal electrochemical states to deliver faster charging and longer life without hardware changes. Breathe’s software integrates physics-based modelling and real-time control into the battery development lifecycle so teams can reduce risk, iterate quickly, and make data-driven decisions while lowering cost and increasing flexibility. Breathe’s products are trusted by global brands and partners, including Volvo and OPPO, for applications that improve charging performance, extend cycle life, etc.Starting Price: Free -
21
Smart 145
Smart 145
Smart 145 is a cloud-based, all-in-one ERP and aviation Maintenance, Repair, and Overhaul software platform designed to optimize and simplify the complex daily operations of aviation repair stations, MRO businesses, and parts suppliers by centralizing key functions such as work order management, inventory tracking, purchase and sales orders, repair orders, quotations, dashboards, and reporting in a single intuitive interface so users spend less time on manual processes and more time servicing aircraft; it offers a user-friendly, scalable system with customizable fields, columns, and reports tailored to the unique workflows of different operations, secure data encryption and regular backups via AWS infrastructure, and real-time visibility into maintenance tasks and parts availability to improve operational control and efficiency.Starting Price: Free -
22
CableCalc BS7671 18-2
CastlineSystems
CableCalc BS7671 is advanced electrical calculation and design software aligned with the latest BS7671:2018+A2:2022 Requirements for Electrical Installations (IET Wiring Regulations 18th Edition Amendment 2) that helps professionals size cables, evaluate circuits, and design distribution board projects with precision. It supports both single- and three-phase calculations for radial, ring, and sub-main circuits, calculating voltage drop, disconnection time, fault current, earth fault information, overload, short-circuit parameters, and correction factors such as temperature and grouping. It offers comprehensive databases of copper cables and protective devices to streamline selection and includes tools to generate detailed calculation documents, schedules, single-line diagrams, and schematic drawings for jobs ranging from simple circuits to multi-distribution board projects.Starting Price: $177.09 per month -
23
3Dfindit
CADENAS GmbH
3Dfindit is CADENAS’ central visual engineering platform, offering verified digital twins and CAD, CAE and BIM data from thousands of manufacturer catalogs. Users can find components through advanced search methods such as text, filters, 3D shape, sketches and color, and download them in more than 100 native and neutral formats. The PLUGIN 3Dfindit supports numerous CAD and BIM systems and enables direct integration of models into existing workflows. For manufacturers, eCATALOG 3Dfindit provides digital product catalog solutions, while ENTERPRISE 3Dfindit offers extended search capabilities for companies within their CAD, PLM or ERP environments.Starting Price: 0 -
24
D5 Lite
D5
D5 Lite is a free, AI-native, real-time visualization plugin developed by D5, specifically designed to integrate directly into 3D modeling software, primarily SketchUp (versions 2021–2026). It serves as an early-stage design tool that bridges the gap between raw, "white-box" massing models and high-quality, rendered visual concepts without requiring users to leave their modeling workspace. It is part of the "D5 All-in-One Workflow," which includes D5 Render and D5 Works.Starting Price: $38/month -
25
NeuralWing
Emmi AI
NeuralWing is a real-time neural simulation and design optimization model for transonic aircraft aerodynamics. It is built around the largest 3D transonic wing dataset, created from 30,000 steady-state CFD simulations of a 3D wing in the transonic regime, with variations across four geometry parameters and two inflow conditions. Using Emmi’s AB-UPT surrogate model trained on this data, NeuralWing enables users to modify wing geometry, test optimizations, and maximize aerodynamic efficiency in seconds. The model supports transonic 3D wing simulation, geometry and inflow variations, real-time inference, and design-parameter optimization. Its inputs include a geometry mesh in STL format, speed, and angle of attack, while its outputs include pressure, friction, velocity fields, and integral forces such as lift and drag. Geometry meshes are created in real time from four design parameters in a differentiable manner, allowing fast exploration of design changes.Starting Price: Free -
26
NeuralMould
Emmi AI
NeuralMould is Emmi AI’s Large Engineering Model for injection molding, described as a new gold standard in AI for engineering: any geometry, any material, any injection gates, one model. It lets users select from a range of geometries and test injection, material, and gate placement parameters to simulate filling behavior in seconds, rapidly compare multiple scenarios, optimize process KPIs, and avoid frozen flow fronts. Injection molding simulation is highly complex because it involves multi-physics calculations that model transient flow of viscous plastic through thin-walled geometries under extreme temperature and pressure conditions. NeuralMould captures these phenomena across a wide range of injecting conditions and mold geometries, achieving performance comparable to traditional solvers with a fraction of the computation time. The model supports multi-material scenarios, fast prototyping, multi-gate configurations, and multiple process parameters.Starting Price: Free -
27
Orca Slicer
Orca Slicer
Orca Slicer is a free, open source 3D printing slicer for FFF and FDM 3D printers, designed to turn 3D models into precise G-code with advanced calibration tools, intelligent print controls, and a user-friendly workflow. It gives makers a complete environment for preparing, tuning, previewing, and optimizing prints, with support for Windows, macOS, and Linux. Orca Slicer includes a comprehensive calibration suite for temperature towers, flow rate tuning, pressure advance, retraction tests, tolerance testing, maximum flow rate testing, and vertical fine artifact calibration, helping users fine-tune printers and filaments for better print quality. The slicer also offers precise wall and seam control, including outer wall spacing adjustments and scarf seams to improve accuracy and surface finish. It includes features for sandwich mode, polyholes, multi-plate workflows, printer setup, slicing settings, and detailed model preparation, giving users more control over how parts are printed.Starting Price: Free -
28
LIGGGHTS
CFDEM
LIGGGHTS is an open source Discrete Element Method particle simulation tool for modeling particulate materials, with a focus on industrial granular and granular heat-transfer simulations. LIGGGHTS stands for “LAMMPS improved for general granular and granular heat transfer simulations,” and it builds on the LAMMPS molecular dynamics platform to extend DEM capabilities toward practical industrial applications. It can be used to simulate systems where material behavior emerges from the motion, collision, friction, cohesion, heat transfer, and interaction of individual particles. It is suitable for analyzing powders, grains, bulk solids, particulate flows, packed beds, conveying systems, mixing processes, hopper discharge, material handling, and other granular systems where particle-scale behavior matters. LIGGGHTS is currently used by research institutions and companies worldwide for the simulation of particulate materials, especially where open source flexibility.Starting Price: Free -
29
LAMMPS
LAMMPS
LAMMPS, the Large-scale Atomic/Molecular Massively Parallel Simulator, is a classical molecular dynamics code with a focus on materials modeling. It models ensembles of particles in liquid, solid, or gaseous states and can simulate atomic, polymeric, biological, solid-state, granular, coarse-grained, mesoscopic, or macroscopic systems using many interatomic potentials, force fields, and boundary conditions. LAMMPS can model systems in two or three dimensions, from only a few particles up to billions, and is designed to run efficiently on parallel computers while remaining easy to extend and modify. It includes potentials for solid-state materials such as metals and semiconductors, soft matter such as biomolecules and polymers, and coarse-grained or mesoscopic systems. It can be used to model atoms or, more generally, as a parallel particle simulator at atomic, meso, or continuum scale.Starting Price: Free -
30
Yade
Yade
Yade is an extensible open source framework for discrete numerical models, focused on the Discrete Element Method. Its computation parts are written in C++ using a flexible object model that allows independent implementation of new algorithms and interfaces, while Python is used for rapid and concise scene construction, simulation control, postprocessing, and debugging. Yade is designed for researchers and engineers who need to create, run, inspect, modify, and extend particle-based simulations through scripts, interactive commands, graphical tools, and reusable simulation components. Simulations can be built from specialized generators or constructed directly with Python scripts, giving users flexibility for developing custom models, importing geometries, reusing code, and controlling the full simulation loop. It represents each simulation as a scene containing bodies, interactions, and resultant forces, with bodies defined by geometry, material properties, state variables, etc.Starting Price: Free
