Best CAD Viewers for Linux of 2025

FreeCAD is a versatile, open-source parametric 3D modeling software created for the purpose of designing tangible objects in various sizes. Its parametric modeling feature enables users to easily revisit the model's history and alter its parameters, facilitating design modifications. With FreeCAD, you can create constrained 2D sketches that serve as foundational elements for constructing additional objects. The software encompasses numerous components that allow for the adjustment of dimensions and the extraction of design specifics from 3D models, aiding in the production of high-quality, ready-to-use drawings. As a cross-platform tool compatible with Windows, Mac, and Linux, FreeCAD offers extensive customization and extensibility options. It supports a wide array of open file formats, including STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE, and many more, which enables smooth integration into various workflows. Designed to accommodate diverse applications such as product design, mechanical engineering, and architectural projects, FreeCAD caters to a broad audience. Regardless of whether you are a hobbyist, an experienced CAD professional, a student, or an educator, the user-friendly interface of FreeCAD ensures that everyone can find their place within the software. Embracing the community-driven development, FreeCAD continues to evolve, incorporating user feedback to enhance its functionality.

K-Display® View software simplifies the distribution of design details throughout your organization. It supports a variety of programs and applications that can read, navigate, and measure all prominent CAD file formats across multiple devices. With K-Display View at your disposal, you can be confident in your readiness for any CAD file that comes your way. There's no need for additional CAD software since K-Display features an easy-to-use interface that enables teams in manufacturing, sales, support, and service to effortlessly view and analyze files. You can feel secure knowing that K-Display View is a locally installed, read-only application, which means you will not accidentally save altered versions of files or upload sensitive customer information online. Utilizing Kubotek’s advanced Kosmos technology, K-Display provides full multi-threaded processing that ensures rapid access even for larger files. Moreover, K-Display View is available in both desktop and mobile-friendly versions, compatible with various operating systems including Windows, Mac, Linux, Android, and iOS, making it a versatile choice for all your CAD viewing needs. This versatility means that your team can collaborate effectively, regardless of their device or platform.

ABViewer is a versatile software application for PC designed for handling various types of drawings. This powerful tool allows users to view, edit, convert, measure, and print DWG files along with other CAD formats, 3D models, and raster images. Users have the flexibility to focus on specific sections of a drawing or manage multiple files simultaneously, all while enjoying an affordable pricing structure! ABViewer supports the conversion of both individual files and batches, offering a comprehensive array of export options such as black-and-white settings and customizable output file sizes. In the 3D section panel, users find controls that enhance the visual representation of 3D models and define section planes, accessible in the 3D Viewer mode. The features available in the 3D Section panel allow for tailored adjustments in how 3D models are viewed, enabling users to easily display different parts of a model by utilizing the settings positioned at the top of the interface. Additionally, it’s possible to create multiple section planes simultaneously, providing even greater control over the visualization process.

CAD Exchanger is a technology that enables data exchange in the multi-CAD world. APPLICATION FOR END-USERS • CAD Exchanger Lab. View, analyze and convert 3D data on desktop. SDKs & TOOLS FOR SOFTWARE DEVELOPERS • CAD Exchanger SDK. C++, C#, Java, Python libraries for applications and SaaS solutions. • CAD Exchanger Batch. Light-weight command-line tool for batch conversions in corporate or cloud environments. From startups to Fortune100 companies our products are used to view, convert and collaborate on 3D CAD data. • 250K+ CAD Exchanger Lab end-users • 1M+ CAD Exchanger SDK enabled end-users • 110+ countries

Open CascadeCAD Assistant is an offline 3D CAD viewer/converter with an intuitive interface. It is free for personal and commercial use. The solution was originally developed to showcase the Open CASCADE Technology on mobile platforms. It has been widely used by thousands of users on desktops and mobiles around the world as a fast and useful 3D viewer. CAD Assistant puts the power of open technologies in the hands of engineers who work with 3D data. CAD Assistant is based upon open source libraries (Open CASCADE Technology Qt, FreeType and FreeImage, etc.). Open formats are available for CAD and mesh data (STEP and IFC, IGES and BREP), glTF and JT, PLY STL, OBJ and 3DM. It supports a variety of file formats, including DXF and SAT (ACIS), XT(Parasolid). Additional functionality in CAD Assistant includes the ability to view mesh models and associated data. You can read files in PLY format to view mesh.

VariCAD is a 3D/2D CAD software that is primarily used for mechanical engineering design. This CAD software allows designers to quickly create, evaluate and modify models. All features and functions are included in one "fully loaded" package. VariCAD is one of the most intelligent choices on the market today, with a high performance-to-price ratio. VariCAD is small, lightweight, and easy to use. It also provides all the necessary tools for mechanical design. VariCAD includes: 3D modeling 2D Drawing and Editing Optional Support for Parameters Optional Support for Geometrical Constraints Shells Modeling, Pipelines, Wires Interferences in Crash Tests 3D Assemblies & Groups Surface Development (Sheet Metal Unbending) Symbol Libraries and Mechanical Part Libraries Calculations of 3D Objects and 2D Sections BOM and Title Blocks