Are you in need of a reliable CAD viewer that won't cost you a fortune? Look no further! There are several great options available online for free that allow you to view and collaborate on 2D and 3D CAD models without the need for expensive software.

One of the top choices for a free CAD viewer is Autodesk's A360 Viewer. This online tool provides an easy-to-use interface for viewing, sharing, and reviewing both 2D and 3D models. You can even add comments and annotations to communicate with your team or clients.

Another popular option is eDrawings Viewer by SolidWorks. This viewer not only supports numerous CAD file formats, but it also allows for dynamic cross-sectioning, measuring, and markup capabilities. Plus, you can view your models on any device, including desktops, mobile phones, and tablets.

For those working with specific file formats like DWG and DXF, AutoCAD Web App is the way to go. This free web-based tool lets you view, edit, and create CAD drawings directly in your web browser, making it a convenient choice for quick edits and sharing.

If you're looking for a simpler, user-friendly option, then check out Onshape's Free Plan. This cloud-based 3D CAD software offers a free plan that includes unlimited public documents, making it perfect for hobbyists, students, and small businesses. With its intuitive interface and collaboration features, Onshape is a great choice for beginners and professionals alike.

For a unique approach to CAD viewing, consider using Clara.io's online 3D modeling software. In addition to viewing 3D models, you can also create and edit your designs directly in the browser. With features like animation and rendering, Clara.io is a versatile tool for both viewing and creating CAD models online.

In conclusion, finding a free CAD viewer online is easier than you might think. Whether you need to view 2D drawings or collaborate on 3D models, there are plenty of options available that won't cost you a dime. With features like markup tools, file format support, and cloud-based accessibility, these free CAD viewers are suitable for a wide range of users. So, don't let budget constraints hold you back from accessing the tools you need to bring your designs to life!