Best Free Open Source DWG Editor Software for Windows

Here is a list of Best Free Open Source DWG Editor Software for Windows. These are open source software that you can use for free and also download their source code. You can study, analyze, and modify the source code of these DWG editors as per your requirement. Using these software, you can edit 2D models saved in AutoCAD Drawing (DWG) file format.

These software provide all standard tools in order to edit DWG drawings, such as rotate, resize, trim segments, move, mirror, divide, stretch, and more. Furthermore, you can edit and manage individual layers of a DWG model. Additionally, drawing tools to insert new designs and shapes to the existing model are also provided in these. For example, line, rectangle, arc, circle, ellipse, spline, and more. All these editors also provide a text tool to insert text annotations to a DWG model. Apart from that, snap function, hatch, dimensioning tool, analyze, and more features are also provided in some software.

You can also convert your DWG file to various other formats, such as DXF, SVG, PDF, EPS, PNG, JPG, BMP, TIFF, ICO, etc. Go through the list to know more about these DWG editors.

My Favorite Free Open Source DWG Editor Software for Windows:

LibreCAD and SolveSpace both are my favorites from this list. You can find all the required tools to edit DWG files in them. Plus, they also support DXF format to edit 2D models. You can even convert DWG to several image formats.

You may also like some best free DWG to SVG ConverterDWG to PNG Converter, and DWG Viewer software for Windows.


LibreCAD is a free open source DWG editor for Windows, Mac, and Linux. It is a 2D CAD software that lets you view, edit, and create DWG files. Plus, it also supports DXF format to edit 2D models. After editing DWG files, you can save them in native format or convert them to another format. You can convert DWG to DXF as well as other file types including SVGPDF, PNG, JPG, BMP, TIFF, ICO, etc. Let us now checkout its main editing features.

Main Features:

  • You can create and insert 2D shapes like LineCircleCurveEllipsePolyline, etc.
  • Some model editing functions like trim segments, move, rotate, scale, mirror, divide, stretch, and more are also provided in it.
  • It also contains a Layer List to edit and manage individual layers of a DWG drawing.
  • It offers a text annotation tool to add text to DWG model.
  • Additionally, snap function, hatch, block list, dimensioning tool, and more are also available in it.


It is a great free open source DWG editor that provides you all standard 2D drawing editing tools and features. Plus, you can also use it to edit DXF files.


SolveSpace is another free open source DWG editor software for Windows. It is a portable software that you can run on the go to edit DWG file. It can also be used to edit DXF models. Plus, it lets you create models in a 3D format namely STEP. When you are done editing a DWG file, you can also convert it to various other formats including DXF, PDF, PS, EPS, SVG, and more. Let us now have a look at its primary features that enable you edit DWG drawing.

Main Features:

  • You can edit DWG drawing using available transformation tools like rotate, move, resize, etc.
  • It also lets you edit line style and configurations like color, light direction, chord tolerance, export scale factor, cutter radius offset, etc.
  • You can insert new designs and shapes to DWG model, such as line, circle, rectangle, bezier cubic spline, arc, etc.
  • It lets you add text to a DWG drawing.
  • It also provides a dimensioning tool to add various dimensions and other measurements to a DWG file.

Additional Features:

  • Analyze: It lets you measure different parameters of a DWG drawing including distance, angle, perimeter, etc. Also, you can view interfering parts, naked edges, center of mass, etc.


SolveSpace is a free portable open source DWG editor software that allows you to make modifications to DWG and DXF models.


FreeCAD is a featured free open source 2D and 3D CAD software that can also be used to edit DWG files. It is a feature-packed software that provides standard as well as an advanced set of features to design 2D and 3D models. Besides DWG, it supports many more 2D and 3D file formats such as DXF, OBJ, DAE, PLY, STL, etc.

To be able to import a DWG file in it, you need to install an additional plugin. The plugin can be downloaded from here and then you can install it on your system. Now, start FreeCAD and go to its Edit > Preferences > Import-Export > DWG section. Then, enter path of the installed plugin in the “Path to Teigha File Converter” field. Restart FreeCAD now and start editing DWG files in it. Let us checkout its key features now.

Main Features:

  • It provides separate workbenches to edit or create DWG file, such as part design, robot, OpenSCAD, architecture designship design, etc.
  • You can use basic transformation, move, scale, and more functions to edit DWG file.
  • It provides a Model tab to browse and manage different objects of DWG drawing. You can edit object labels and attributes from here.
  • You can convert edited DWG file to DXF, SVG, PDF, and more formats.

Additional Features:

  • Plugins: It supports external plugins to further enhance its feature set.
  • Tools: In its Tools menu, you can find some additional handy tools like Save Picture, Scene Inspector, Dependency Graph, Measure Distance, etc.


It is another great free open source software to edit DWG files by installing an external plugin.

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