mainLibreDWG - Summary

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Id: #10374
System Name: libredwg
Name: LibreDWG
Group Type: Official GNU software

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This project is part of the GNU Project.

This website is mostly intended for developers and maintainers. For general information on the project, please check

If you're looking for information on how to contribute, check the hackers' wiki at

LibreDWG was based on LibDWG (, which is written with variable names, documentation and comments in Esperanto.

There are also cmdline tools and libraries to read and write DWG files, with converters for various formats: DXF, DXFB, SVG, PS, JSON
and a SaveAs functionality, to convert between the various DWG versions.
It can read r13-r2021 DWG and ascii DXF, write r13-r2000 DWG, write r11-r2021 ascii DXF (binary not yet). It supports much more object types than any other free DWG library.

Registration Date: Sat 24 Oct 2009 10:23:48 PM UTC
License: GNU General Public License v3 or later
Development Status: 4 - Beta


Latest News rss feed
libredwg-0.12 released
     posted by reini_urban, Thu 31 Dec 2020 05:16:59 PM UTC - 0 replies

New add API to easily create new DWGs (or DXFs) from scratch, for CAD programs.
New dwgadd helper.
Removed deprecated old API functions.

New features:
  * Add a new experimental dwg_add_ENTITY/OBJECT API for easier CAD write support, ...

[Read more]
libredwg-0.11.1 released (bugfixes)
     posted by reini_urban, Mon 16 Nov 2020 08:39:40 PM UTC - 0 replies

out_dxf bugfixes mostly. 0.11 failed to produce dxf files which could
be imported into AutoCAD.  This bugfix release improves DXF importing
from 10% to about 90%. But beware: Some dwg2dxf DXF files still can
silently crash AutoCAD, so be sure to save your DWG before DXFIN. ...

[Read more]
libredwg-0.11 released
     posted by reini_urban, Fri 07 Aug 2020 10:49:04 AM UTC - 0 replies

New features:
  * new programs dwgfilter, dxfwrite.
    dwgfilter allows custom jq queries.
    dxfwrite allows version conversions, which dwgwrite does not yet support.
  * Can now read all 2004+ section types: added AppInfo, FileDepList, ...

[Read more]
libredwg-0.10.1 released
     posted by reini_urban, Mon 13 Jan 2020 09:40:00 AM UTC - 0 replies

Major bugfixes:
  * Fixed dwg2SVG htmlescape overflows and off-by-ones (#182)
  * Removed direct usages of fprintf and stderr in the lib. All can be
    redefined now. (#181)

Minor bugfixes:
  * Fuzzing fixes for dwg2SVG, dwgread. (#182) ...

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