Best Free CAD Viewers of 2025

This program is a viewer which displays the HPGL plotter drawings file (HPGL/2 not supported, HP RTL does not work) and runs on Windows Vista 7, 8, 10. It also supports multi-page. Display can be rotated, mirror inversion and grid display are possible. You can change the background color, line width and color, as well as display ON/OFF. All pens can be set to black and white or color, with variable line widths / constant switching.

IrfanView is a quick, lightweight, and innovative FREEWARE graphic viewer available for Windows XP, Vista, 7, 8, and 10, intended for non-commercial use. It aims to balance simplicity for newcomers with robust capabilities for experienced users. Unlike many other graphic viewers that often replicate features and interfaces from established programs like ACDSee and IrfanView itself, IrfanView prioritizes the development of original and intriguing functionalities. It was the pioneering Windows graphic viewer globally to support Multiple (animated) GIFs, and it was also among the first to offer Multipage TIF and Multiple ICO support. The software includes features like lossless JPEG rotation, cropping, and EXIF date adjustments, even in batch processing. Users can create slideshows that can be saved as EXE/SCR files or burned onto CDs, and it supports batch conversion with sophisticated image processing for all files. Additionally, IrfanView accommodates embedded color profiles in JPG and TIF files, all while ensuring no registry changes occur without explicit user consent. Its commitment to unique features and user empowerment makes it stand out in the realm of graphic viewers.

Developing exceptional products is essential for the success of our clients. We strongly assert that quality products have their own voice, and the acknowledgment from our customers serves as our utmost assurance. By consistently enhancing our technology platform, our focus remains on ensuring customer satisfaction. We are convinced that effective technology can boost efficiency, allowing us to address user needs more swiftly and adequately. Through ongoing transparency and the sharing of data, we aim to collaborate with our ecosystem partners to foster mutual benefits. We hold the belief that a thriving ecosystem must be cultivated collectively, as a collaborative environment will yield greater value creation and pave the way for a future driven by digital intelligence. Together, we can transform challenges into opportunities for growth.

Onshape is a modern CAD/data management solution that includes standard content libraries, modern CAD, multi-part modeling and in-context edit. Onshape makes it easy to access the solution from anywhere, anytime, without the need for downloads or installations. Onshape allows users to share and store CAD data in a safe cloud workspace. Onshape allows users control and monitor access privileges to stored CAD files.

Free Online 3D Viewer. Open STEP, IGES and OBJ files directly in your web browser. All devices, whether PC, Tablet, or mobile, are supported.

LibreCAD is an open-source CAD software available for Windows, macOS, and Linux platforms without any cost. Users benefit from extensive support and documentation provided by a thriving community made up of users, contributors, and developers. The initiative began as an effort to integrate CAM functions into the community version of QCad for a Mechmate CNC router. Due to QCad CE being built on the outdated Qt3 library, a port to Qt4 was necessary before further improvements could be made, leading to the temporary creation of CADuntu. However, after a brief period, the community concluded that the name was not suitable and engaged in discussions to find a more fitting title, resulting in the adoption of LibreCAD. The transition of the rendering engine to Qt4 was a significant undertaking, and as a result, LibreCAD initially relied on the Qt3 support library. Ultimately, this port was completed during the development of the 2.0.0 series, thanks to the efforts of our chief developer, Rallaz, marking LibreCAD's evolution towards being completely independent of Qt3, except for the 1.0.0 series. This transformation not only enhanced the software's capabilities but also solidified its position within the CAD community.

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.

Cortona2D Viewer provides the capability to display an array of graphic formats such as CGM, BMP, ICON, GIF, and JPEG, among others. This viewer functions as a pluggable component compatible with both Internet Explorer and Microsoft Office applications, including PowerPoint and Word. Currently, Cortona2D Viewer is exclusively available for users on the Windows operating system. However, it is not merely a viewer; its robust API facilitates seamless integration into any third-party application that supports ActiveX technology. With the Cortona2D Viewer, users can develop a diverse range of 2D applications, enabling interaction with hotspots and embedded hyperlinks in technical drawings in a manner similar to browsing web pages. Additionally, 2D images produced during procedures are automatically linked to procedural actions and timelines, ensuring updates are consistently synchronized, which also includes raster images derived from 3D models. Furthermore, 2D images created in catalogs are connected to sheet views, ensuring they are updated automatically as well, which enhances the overall functionality of technical documentation. This makes Cortona2D Viewer an essential tool for anyone working with 2D graphics in a professional setting.

Engage in various CAD projects while facilitating data interchange by setting up a connection that converts data between compatible formats. This utility allows users to open and inspect files from a wide range of CAD systems, enabling the selection of entire files or specific components for translation. The complimentary version of Delcam Exchange supports reading multiple widely-used CAD file formats, including ACIS, IGES, Parasolid, STEP, VDA, and various AutoCAD formats (dwg, dxf), along with CATIA V3, V4, V5, Cimatron, Elite, IDEAS, Inventor, Pro/Engineer, Rhino, SolidEdge, SolidWorks, SpaceClaims, TopSolid, and Unigraphics NX. Delcam Exchange serves as a robust solution for CAD translation, functioning as a standalone program that efficiently converts many popular CAD input formats into several output formats. The process of downloading Exchange, as well as opening and examining files from all compatible systems, is entirely free and carries no obligations, ensuring that your CAD data remains confidential, as there is no requirement to upload any files to the internet. This guarantees a secure user experience while maximizing accessibility across different CAD platforms.

The JETCAM CAD Viewer is a complimentary application designed to enable the viewing of various significant 2D CAD files directly on your computer. This tool is incredibly lightweight, requiring minimal memory and disk space, while ensuring swift performance. It serves as an excellent addition to your existing CAD/CAM software, allowing for quick, one-click access to CAD files along with features for panning and zooming. Offered as a free service without any warranties, the JETCAM CAD Viewer can be installed on an unlimited number of computers within your organization. It facilitates immediate access to all major CAD files, including native JETCAM component formats, completely free of charge. Users are not subjected to any time limits or fees for unlocking extra features. Furthermore, there is no need for registration to download or utilize the tool; simply click the Download link to get started. The software is free from advertisements, spyware, or malware, and boasts an impressively small memory footprint of approximately 50MB while in operation. It also features a straightforward tree view for easy navigation across all local and mapped network drives, along with thumbnail previews for all supported 2D CAD files, enhancing user experience further. This makes it an invaluable asset for anyone working with CAD files, streamlining their workflow efficiently.

Utilize the functionality in a comparable manner and location to load multiple DWG files rapidly. DWG FastView Plus is designed to be lightweight and extremely quick. It offers viewing features such as zoom, pan, 3D Orbit, and magnifier, making it simple to navigate through drawings. You can also use the quick measure tool to temporarily show linear horizontal and vertical measurements of enclosed objects. The program allows for straightforward management of drawing layers and external references, as well as easy access to object properties through palettes, significantly speeding up text searches. Furthermore, you can employ standard dimensioning tools to integrate precise information into your drawing designs. It allows switching between different standard drawing units for both measurement and dimensioning purposes. Additionally, you can convert multiple DWG files to either a previous or current version with just one click. Once your drawing is finalized, you can print it using a plotter, printer, or save it as a file, ensuring flexibility in your output options. This tool streamlines the entire process, making it an invaluable asset for professionals in the field.

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

CADMATIC Drawing Viewer is a complimentary application designed for the visualization and printing of CAD drawings. While it offers basic capabilities for drawing, editing, and printing, it lacks the option to save files. This software can open various file types, including DRW, DWG, and DXF formats, and supports both 2D and 3D views. Additionally, it features specific printing routines tailored for drawings produced with CADMATIC Electrical. Despite not encompassing all the advanced functionalities found in CADMATIC Draw, this viewer provides a range of beneficial tools that allow users to familiarize themselves with our leading software solution. Users can work with and create combination IFC models that integrate architectural, structural, HVAC, and electrical designs that adhere to the IFC 2x3 CV 2.0 standards. Furthermore, CADMATIC Drawing Viewer allows for extensive customization of print appearances, including adjustments to line thickness, and includes predefined functions for managing layers and printing processes effectively. This makes it a practical choice for users looking to enhance their CAD experience without the need for saving capabilities.

Autodesk Viewer is compatible with a wide range of 2D and 3D file formats, such as DWG, STEP, DWF, RVT, and SolidWorks. With its intuitive drawing and annotation features, you can efficiently obtain the feedback you need. This platform enables you to collaborate on your designs seamlessly across various devices and operating systems. You can view DWG files or convert them to be compatible with earlier versions of AutoCAD. Additionally, the Design Review feature allows you to annotate 2D and 3D files without needing the original design software. For enhanced flexibility, you might consider using either Autodesk Viewer or the AutoCAD web app. The AutoCAD web app provides instant access to CAD drawings, allowing you to view, edit, share, and create DWG files directly from your web browser on any device, eliminating the need for software installation. You will still have access to the familiar drafting tools and commands that you're accustomed to using while working on your projects. This ensures that you can maintain productivity regardless of where you are.

Design Review CAD viewer software provides a free solution for viewing, annotating, printing, and tracking revisions on 2D and 3D files without needing the original design applications. It supports a range of file formats, such as DWF, DWFx, DWG, DXF (which requires the free DWG TrueView software), Adobe PDF, and various image formats including .bmp, .jpg, .gif, .pcx, .pct, .png, .rlc, .tga, .tif, .mil, .cal, and others. Users can utilize user-friendly tools to measure, annotate, and assess designs directly on their desktop. Collaborate seamlessly with team members and stakeholders, regardless of whether they possess the original design software, which helps reduce paper use and minimize potential misunderstandings. Benefit from advanced functionalities specially designed for DWF Viewer and Volo View users, allowing you to open and examine high-resolution drawings, maps, and models effortlessly. Accurately measure components, areas, surfaces, and dimensions to enhance communication, while also providing the option to insert comments, information, and suggestions for design modifications on both 2D and 3D files, thus streamlining the review process. This innovative software ultimately fosters better collaboration and efficiency throughout design projects.

Creo View is an effective enterprise visualization tool that facilitates seamless collaboration among both local and international design teams. It provides easy access to various types of engineering data, such as 3D CAD models, 2D drawings, electrical schematics, and printed circuit boards, either interactively on a computer or through augmented reality (AR), enabling design authors, project managers, and downstream suppliers to swiftly exchange and access information with each other and other interested parties. The platform simplifies the comparison and validation process through single-view examination of mechanical and electrical designs, project details, and part data. By utilizing Creo View, users can achieve quicker and more efficient design reviews, enhance collaboration among users and extended design teams, and ultimately produce higher quality products at reduced costs. PTC offers a variety of commercial viewing options, ranging from the free-for-life Creo View Express viewer to fast and highly scalable viewers, ensuring there is a solution to meet every need. In this way, Creo View not only optimizes design workflows but also promotes innovation across the entire organization.

Measure dimensions such as length, angle, radius, and area with ease by simply clicking to obtain the desired values. Accurately select various entities, whether they are terminals, central points, or cross junctions, and edit objects like text, lines, layers, and block attributes, or opt to right-click for property modifications. This agile and efficient DWG viewer and editor is specifically crafted to facilitate the browsing, viewing, measuring, markup, editing, and printing of DWG/DXF/DWF files, all while supporting the latest AutoCAD 2022 drawings. With just a few straightforward steps, you can export your drawings to PDF and raster images, making it convenient for sharing your designs or conducting drawing reviews. You have the option to open a DWG/DXF file for printing or select multiple drawing files to print simultaneously, eliminating the need to open each file individually. Furthermore, you can choose to keep the original .dwg intact while adding comments in a separate markup file, or enhance the DWG by incorporating additional layers, lines, and text. This flexibility ensures that your design process remains efficient and organized, catering to diverse project needs.