# Top Free Other CAD Software - Page 2 ## How Many Other CAD Software Products Does G2 Track? **Total Products under this Category:** 212 ### Category Stats (Jul 2026) - **Average Rating:** 4.32/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Altair Radioss (+6.25%) - Among all products in this category, Altair Radioss recorded the largest rating increase compared to last month _Last updated: July 30, 2026_ ## How Does G2 Rank Other CAD Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 500+ Authentic Reviews - 212+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## G2 Grid® for Other CAD Software ![G2 Grid® for Other CAD Software plotting products by satisfaction and market presence](https://www.g2.com/categories/other-cad/grids.png?focus%5B%5D=70172&focus%5B%5D=58363&focus%5B%5D=58949&focus%5B%5D=84455&focus%5B%5D=129567&focus%5B%5D=5319&focus%5B%5D=1388429&focus%5B%5D=58359) Highlighted products: Ansys SpaceClaim, Ansys Meshing, SolidWorks 3D Experience Collaboration Services, Simplify3D, IP Video System Design Tool, Vectorworks Spotlight, PTC Mathcad Prime, and Ansys DesignXplorer. Underlying data: [Grid® JSON](https://www.g2.com/categories/other-cad/grids.json?focus%5B%5D=ansys-spaceclaim&focus%5B%5D=ansys-meshing&focus%5B%5D=solidworks-3d-experience-collaboration-services&focus%5B%5D=simplify3d&focus%5B%5D=ip-video-system-design-tool&focus%5B%5D=vectorworks-spotlight&focus%5B%5D=ptc-mathcad-prime&focus%5B%5D=ansys-designxplorer) ### [Flow Engineering](https://www.g2.com/products/flow-engineering/reviews) Lightweight agile requirements tracking meets digital twin and MBSE. Flow is a purpose-built to help fast-moving agile teams iterate faster. **Average Rating:** 5.0/5.0 **Total Reviews:** 11 #### How Do G2 Users Rate Flow Engineering? - **Quality of Support:** 9.8/10 (Category avg: 8.6/10) - **Ease of Use:** 9.8/10 (Category avg: 8.3/10) #### Who Is the Company Behind Flow Engineering? - **Seller:** [Flow Engineering](https://www.g2.com/sellers/flow-engineering) - **Year Founded:** 2016 - **HQ Location:** Los Angeles - **Twitter:** @Flow\_Engineer 542 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=06c7d4ceb1f8833ad54f45722bd448310ccc1f2b0999b5b93bb0c7c6567ca463&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fflowengineer%2F&secure%5Burl_type%5D=linkedin_company_website) 29 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 64% Small, 36% Medium #### What Are Recent G2 Reviews of Flow Engineering? **["Legacy tools cannot compete with this! The fastest, most adaptable tool on the market."](https://www.g2.com/survey_responses/flow-engineering-review-10425242)** **Rating:** 5.0/5.0 stars _— Jamie G._ [Read full review](https://www.g2.com/survey_responses/flow-engineering-review-10425242) **["Best requirements management tool I have found on the market!"](https://www.g2.com/survey_responses/flow-engineering-review-9898614)** **Rating:** 5.0/5.0 stars _— Thomas A._ [Read full review](https://www.g2.com/survey_responses/flow-engineering-review-9898614) ### [M-Star](https://www.g2.com/products/m-star/reviews) M-Star Simulations, LLC, is a software company focused on the development of computational tools for modeling momentum, energy, and mass transport within engineering and biological systems. By pairing modern algorithms with graphical processing card (GPU) architectures, this software enables users to quickly perform calculations with predictive fidelity that rivals physical experiment. These outcomes are achieved using a simple graphical interface that requires minimal user specification and setup times. Founded in Maryland, USA, in 2014, M-Star Simulations has grown to include commercial, government, and academic users across North America, South America, Europe, and Asia. #### Who Is the Company Behind M-Star? - **Seller:** [M-Star Computational Fluid Dynamics Software](https://www.g2.com/sellers/m-star-computational-fluid-dynamics-software) - **HQ Location:** Ellicott City, US - **Twitter:** @MStarCFD 95 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a0298714ff4c20bb95771419466b4b7be5ad875d34ffb2ff2648ad81feba3cbe&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fm-star-simulations&secure%5Burl_type%5D=linkedin_company_website) 10 employees on LinkedIn® ### [Neurocad](https://www.g2.com/products/neurocad/reviews) Neurocad is an engineering infrastructure platform that sits between unstructured engineering documentation and native CAD and EDA execution. Neurocad converts unstructured engineering documentation, including component datasheets, PDF drawings, reference designs, images, and BOMs into native, parametric, design-ready assets delivered directly into professional CAD and EDA tools. It sits between the documentation engineers work from and the tools they design in, eliminating the manual data reconstruction that occurs at every tool boundary in a hardware development workflow. Neurocad is used by: - electrical engineers - PCB designers - mechanical engineers - engineering managers The engineers that work in multi-tool ECAD and MCAD environments. Primary use cases include: - PCB library generation - schematic symbol - footprint creation from datasheets - circuit artifact editing - ECAD-to-MCAD asset propagation - BOM-driven library automation. The platform is vendor-agnostic and connects to: - Altium Designer - Cadence (OrCAD/Allegro) - KiCad - SolidWorks - Autodesk Fusion 360 - Autodesk Inventor - Other adjacent engineering environments. Neurocad uses a combination of machine learning, computer vision, and a deterministic parametric modeling kernel to extract engineering intent from source documentation, resolve ambiguous or incomplete dimensions through ratiometric inference, and compile IPC-compliant outputs without intermediate file formats, post-processing, or manual cleanup. Before any asset is committed to a tool, engineers can inspect and refine it in Edit — an artifact canvas for adjusting pins, pad placement, and parameter mappings on circuits, footprints, and symbols. The engineer maintains full control over the output before it enters the design environment. Key capabilities: Neurocad compiles native schematic symbols, PCB footprints, and parametric circuit artifacts from datasheets, PDFs, and component images, delivered directly to connected CAD and EDA environments via Neurocad Link and Neurocad's recipe nodes. The Edit canvas allows engineers to inspect and adjust pins, pad geometry, and parameter mappings on generated artifacts such as circuits, footprints, and symbols before committing any asset to an EDA tool. Applies organization-specific library standards, layer conventions, naming conventions, property sets, and pad geometry templates to every generation, in a defined once, applied consistently across all outputs philosophy. Neurocad supports recipe-based workflow automation triggered by Slack messages, GitHub commits, webhooks, or scheduled runs, enabling continuous library generation without manual intervention. Neurocad supports multi-tool outputs from a single source: one datasheet or BOM can compile native assets simultaneously for Altium, KiCad, Cadence, SolidWorks, and other connected environments. Neurocad is currently available through an Early Access Program for engineering teams working in multi-tool ECAD and MCAD environments. It is built by engineers previously at Accel EDA, Altium, Autodesk, Meta, Microsoft, HP, and Siemens. #### Who Is the Company Behind Neurocad? - **Seller:** [Neurocad](https://www.g2.com/sellers/neurocad) - **Year Founded:** 2024 - **HQ Location:** Atlanta, US - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a6577a31e8033adc2b5b4aa188723c018dda4ca34916d966fc49116ddf99949d&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fneurocad-inc&secure%5Burl_type%5D=linkedin_company_website) 9 employees on LinkedIn® ### [Pedestrian Dynamics](https://www.g2.com/products/pedestrian-dynamics/reviews) Pedestrian Dynamics is a crowd and pedestrian simulation software designed to model, analyze, and optimize how people move through complex environments such as airports, train stations, stadiums, theme parks, large-scale events, and urban spaces. It helps organizations improve safety, efficiency, and capacity by simulating pedestrian behavior before infrastructure is built or operational changes are made. The software enables users to create a digital representation of real-world environments and evaluate how design decisions impact crowd flow, congestion, travel times, and evacuation performance. By testing different scenarios in advance, teams can identify bottlenecks, compare layout options, and make better-informed decisions with less risk. Pedestrian Dynamics is purpose-built for large-scale pedestrian environments, where crowd behavior plays a critical role in performance and safety. It simulates thousands of individuals moving simultaneously, each with realistic movement behavior such as route choice, interaction with other pedestrians, and response to congestion. This provides a reliable representation of how spaces perform under real-world conditions, including peak demand and emergency situations. Unlike general-purpose simulation platforms, Pedestrian Dynamics focuses specifically on pedestrian flow and crowd dynamics. This specialization allows it to deliver practical insights without the complexity and overhead often associated with broader simulation tools. Users can build models efficiently, run multiple scenarios, and interpret results without requiring extensive simulation programming expertise. The platform is used across transportation infrastructure, event venues, urban planning, and safety analysis. Airports, rail stations, and metro systems use it to improve passenger flow and capacity planning. Stadiums and large venues use it to evaluate entry and exit strategies and ensure safe evacuation. Urban planners and consultants use it to design more efficient public spaces and pedestrian networks. Pedestrian Dynamics supports both design-phase validation and operational optimization. Organizations can test new infrastructure concepts as well as improve existing environments by analyzing how changes in layout, scheduling, or crowd management strategies affect performance. By combining scalable simulation, realistic pedestrian behavior modeling, and a practical workflow, Pedestrian Dynamics helps organizations move from assumptions to evidence-based decisions. Teams can visualize how people will actually move through a space, reduce uncertainty, and create safer and more efficient environments. Overall, Pedestrian Dynamics provides a focused and effective solution for organizations that need to understand and manage pedestrian movement in complex, high-density environments. It bridges the gap between advanced simulation capability and real-world usability, enabling better decisions across infrastructure planning and operations. #### Who Is the Company Behind Pedestrian Dynamics? - **Seller:** [InControl Enterprise Dynamics](https://www.g2.com/sellers/incontrol-enterprise-dynamics-3e83ec21-74f6-4d8e-a6db-bd1b6289afd8) - **Year Founded:** 1989 - **HQ Location:** Woerden, NL - **LinkedIn® Page:** [nl.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=11d86417b829c22dfd4247f143577eef48749aee0e735a9597b6b97d38cd5235&secure%5Burl%5D=https%3A%2F%2Fnl.linkedin.com%2Fcompany%2Fincontrol-simulation-solutions&secure%5Burl_type%5D=linkedin_company_website) 54 employees on LinkedIn® ### [Saninet 3D bathroom design](https://www.g2.com/products/saninet-3d-bathroom-design/reviews) Saninet is a three-dimensional bathroom design software that enables users to create detailed bathroom designs in approximately ten minutes. The platform streamlines the design process into three fundamental steps: designing the bathroom layout, presenting a three-dimensional tour of the design, and exporting the bill of materials along with technical drawings. The software features an extensive library containing forty thousand branded products, allowing designers to incorporate realistic three-dimensional models of actual bathroom fixtures and materials into their designs. The intuitive interface eliminates the need for extensive training, making professional bathroom design accessible to users of varying skill levels. The software provides comprehensive design capabilities including room shape selection, precise dimension input, element placement, and tile selection. Users can generate virtual tours of their designs with a single click and produce technical drawings that include exact measurements, symbols, and multiple viewing angles. Saninet offers enhanced functionality through optional plugins such as Saninet Tiles for custom tile libraries, Saninet Note for generating parts lists and facilitating ERP system orders, and Saninet SIMS for automating the design process from sale to installation. These tools collectively transform the bathroom design experience into an efficient, interactive process. Saninet is available in three subscription tiers to accommodate different user needs. The Basic plan includes essential design features such as bathroom shape selection, access to generic and branded product models, tile placement options, HD viewing capabilities with day and night modes, cloud storage, technical drawing generation, and consumer viewer app access. The Pro plan expands upon these features with additional capabilities, while the Enterprise plan caters to organizations with more than five simultaneous users. All plans include cloud storage functionality and support services to assist users in creating optimal bathroom designs for their customers. #### Who Is the Company Behind Saninet 3D bathroom design? - **Seller:** [Saninet](https://www.g2.com/sellers/saninet) - **Year Founded:** 1999 - **HQ Location:** Den bosch, NL - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a5f8c8568ccd9e460831ff2db8ede7f98fcf049b08713517a777ead86ed60204&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsaninet-eu&secure%5Burl_type%5D=linkedin_company_website) 17 employees on LinkedIn® ### [Snaptrude](https://www.g2.com/products/snaptrude/reviews) Snaptrude is a web-based 3D modeling software (BIM) for Architects and Designers. Designers use Snaptrude to create better buildings faster with the help of data and automation. Unlike other design tools, Snaptrude allows for multiplayer collaboration enabling project teams to design together. #### Who Is the Company Behind Snaptrude? - **Seller:** [Snaptrude](https://www.g2.com/sellers/snaptrude) - **Year Founded:** 2017 - **HQ Location:** New York, New York, United States - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=011043aaf7ff1f4d41ab539f81fda0c8181e2e21e0f10e8b1a8b04871de281e0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsnaptrude&secure%5Burl_type%5D=linkedin_company_website) 79 employees on LinkedIn® ### [Synera](https://www.g2.com/products/synera/reviews) Synera is an AI agent platform for engineering. It combines workflow automation with digital engineers that work autonomously as a team to complete real engineering tasks using your existing CAD, CAE, PLM, and costing tools. Watch a live demo to see how NASA uses Synera: https://www.youtube.com/watch?v=8YRkwy6Vg90 Synera agents unite the intelligent reasoning and creativity of AI with the guardrails of workflows to run complex processes automatically and deliver precise results needed by R&D engineering teams in markets where speed is a competitive edge. Trusted by OEMs and Tier 1 Suppliers, including Global Fortune 500 manufacturers and their affiliates, like BMW, Airbus, and NASA, Synera’s AI agents accelerate product development up to 10x and lower engineering costs without requiring a change in team size or engineering tools. Guided by the vision to give every engineer the freedom and power to shape the future, Synera’s agentic AI solutions work side by side with engineers taking over repetitive work like simulation, design changes, costing analysis, RFP/RFQ preparation, giving engineering back valuable time to focus on strategic trade-offs and innovation. #### Who Is the Company Behind Synera? - **Seller:** [Synera](https://www.g2.com/sellers/synera) - **Year Founded:** 2018 - **HQ Location:** Bremen, Bremen, Germany - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ac4a65212d9954c2718bd62eb205f99e5880b5eac283b18d8cce230d8e7a38a1&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsyneragmbh&secure%5Burl_type%5D=linkedin_company_website) 59 employees on LinkedIn® ### [WELSIM](https://www.g2.com/products/welsim/reviews) WELSIM engineering simulation software helps researchers and engineers conduct simulation studies and prototype virtual products. #### Who Is the Company Behind WELSIM? - **Seller:** [Welsim](https://www.g2.com/sellers/welsim) - **Year Founded:** 2017 - **HQ Location:** Bridgeville, US - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=f34a1f391a7e14ac5f98d9f925344729722c85df50e55faf5984db1cc0957302&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fwelsim%2F&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® - [‹ Prev‹ Prev](/categories/other-cad/free?order=g2_score#product-list) - [1](/categories/other-cad/free?order=g2_score#product-list) - 2 - Next ›Next › Spotlight Categories [Email Marketing Software](https://www.g2.com/categories/email-marketing) [Employer of Record (EOR) Software](https://www.g2.com/categories/employer-of-record-eor) [Sales Compensation Software](https://www.g2.com/categories/sales-compensation) [Professional Services Automation Software](https://www.g2.com/categories/professional-services-automation) [HCM Software](https://www.g2.com/categories/hcm-software) Similar Categories - [3D Parts Catalog](/categories/3d-parts-catalog) - [Building Design and Building Information Modeling (BIM)](/categories/building-design-and-building-information-modeling-bim) - [CAD Data Exchange](/categories/cad-data-exchange) - [CAD Libraries](/categories/cad-libraries) - [CAD Viewers](/categories/cad-viewers) - [Civil Engineering Design](/categories/civil-engineering-design) - [General-Purpose CAD](/categories/general-purpose-cad) - [Mechanical Computer-aided Design (MCAD)](/categories/mechanical-computer-aided-design-mcad) - [MEP](/categories/mep) - [PCB Design](/categories/pcb-design) - [Sketching](/categories/sketching) - [Solar Design](/categories/solar-design) - [Systems Engineering And MBSE](/categories/systems-engineering-and-mbse)