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Top Rated Engineering CAD Software with Free

Last updated: May 2026

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21 software options

Onshape logo

Onshape

Full-cloud 3D CAD system for design teams

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Onshape is a cloud-based 3D CAD solution for agile design & engineering teams, with tools for version control, collaboration, analytics, reporting, and more

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Pylon logo

Pylon

#1 Solar Design Software with $0 Monthly Fees

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Pylon Solar Design Software gives you Premium Features for $0 Monthly Fees.

- High Resolution Aerial Imagery
- 3D Solar Shading
- Interval Analysis
- Load Profiles
- Job Sheets
- Handover Documents

Convert more sales proposals with no costly overhads.

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AutoCAD logo

2D and 3D design and drafting platform

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AutoCAD is a design and drafting platform which supports automated design tasks and offers features such as 2D drafting, drawing and annotation, 3D modeling and visualization, and more.

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SolidWorks Premium logo

3D CAD design and simulation solution

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SolidWorks Premium is the leading 3D design solution in the industry. It seamlessly integrates powerful design tools-including industry-leading part, assembly, and drawing capabilities with built-in simulation, rendering, animation, product data management, and cost estimation.

SolidWorks will help you get work done faster and easier than before, using innovative phases of product creation to achieve a more productive 3D design experience.

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Ansys SpaceClaim logo

Cloud-based tool for engineering simulation and 3D designing

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Ansys is a 3D design software that can be utilized by businesses across several industry segments, including automotive, aerospace, construction & consumer goods. Organizations can manage processes related to workflow automation, predictive analysis, application customization, and product testing.

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JigSpace logo

3D presentations made easy with JigSpace.

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The JigSpace App lets you create and share stunning augmented reality presentations. For schools, businesses, and everyone in-between.

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Designcenter Solid Edge logo

3D design and simulation

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Designcenter Solid Edge provides businesses with a range of modeling and simulation tools to address all aspects of the product development process. The software portfolio covers electrical design, 3D design, computer aided manufacturing (CAM), 3D printing, simulation, data management, and more.

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SkyCiv Structural 3D logo

3D structual analysis software for engineers

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SkyCiv is structural 3D analysis software that allows mechanical, structural and other engineers to analyze shear, bending, deflection, stress and more

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RFEM logo

Structural analysis and design software

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The 3D FEA structural analysis program RFEM meets all requirements in modern civil engineering. Sophisticated input technology allows you to quickly learn to operate the program and ensures the efficient and intuitive modeling of simple and complex structures.

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Shapr3D logo

Radically efficient CAD tool .

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Shapr3D creates intuitive CAD tools that help design and manufacturing teams work efficiently. With a multi-platform setup and accessible tools, teams can collaborate seamlessly and boost productivity.

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OnScale Solve logo

Cloud-based engineering CAD and simulation software

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OnScale Solve is an engineering CAD and simulation software designed to help businesses create 3D models of physical components or devices. The platform enables engineers to handle CAD repair, meshing, and multiphysics simulation of designs and analyze data to generate custom artificial intelligence (AI) or machine learning (ML) algorithms.

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Draft it logo

2D CAD solution

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Draft it, by Cadlogic, is a 2D CAD solution that provides functionality to create, save and print CAD drawings.

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PTC Mathcad logo

Software for solving and editing mathematical calculations

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PTC Mathcad is an on-premise software designed to help engineers across different industries solve, edit, and share mathematical calculations. The application enables users to run accurate calculations and manage traceability and intellectual property rights via a unified portal.

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SimScale logo

Technically & economically accessible simulation

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SimScale is a cloud-native simulation platform that gives access to FEA and CFD simulation via a standard web browser to every engineer and designer in the world. Delivered as SaaS, SimScale is accessible through a yearly subscription, with no special hardware, installation or maintenance needed.

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ODOP:Spring logo

Open Design Optimization Platform

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ODOP:Spring is a full-featured web-app that supports the engineering design of helical coil springs.

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BricsCAD logo

The modern CAD software alternative

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BricsCAD the first all-in-one CAD design software in .dwg that answers all your needs; 2D drafting, 3D modeling, BIM, and mechanical design.

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FreeCAD logo

On-premise and open-source paramedic 3D modeler

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FreeCAD is an on-premise open-source paramedic 3D modeler, which helps businesses design objects of all sizes. Programmers can sketch constrained 2D shapes and utilize them as a base to create other objects. It supports several file formats such as IGES, SVG, DXF, DE, IFC, STL, STEP, OBJ, and more.

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SolidFace logo

3D CAD modeling solution for businesses of all sizes

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SolidFace is a cloud-based CAD modeling solution which helps businesses in the architectural, engineering and construction industries design models with 3D & 2D visuals. Key features include configuration management, data import, multi-part parametric assemblies, and in-context editing.

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4Reality logo
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Real-time rendering and simulation

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4Reality is a real-time rendering software that offers photorealistic visualizations and simulations. It supports various CAD and 3D model formats, features dynamic sky simulation, VR compatibility, and advanced simulation tools, making it ideal for design, architecture, and engineering.

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Crafty Amigo logo
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Cloud-based software for designing HVAC ducts

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HVAC Duct Design is a cloud-based software that provides tools to help you design your HVAC system and share it with your HVAC installer or engineer. The platform allows users to download the parts list to create custom HVAC designs.

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PROFIS Engineering Suite logo
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Cloud-based tool that helps design structural connections

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PROFIS Engineering Suite is a cloud-based software that helps design structural connections in construction projects.

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