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-r2018 DWG and ascii DXF, write r13-r2000 DWG, write r11-r2018 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


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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) ...

[Read more]
libredwg-0.10 released
     posted by reini_urban, Wed 08 Jan 2020 04:52:15 PM UTC - 0 replies

Some minor API changes and bugfixes, mostly stabilization.

API breaking changes:
  * added a new int *isnewp argument to all dynapi utf8text getters,
    if the returned string is freshly malloced or not.
  * removed the UNKNOWN supertype, there are only UNKNOWN_OBJ and UNKNOWN_ENT ...

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libredwg-0.9.3 released
     posted by reini_urban, Wed 25 Dec 2019 09:55:09 PM UTC - 0 replies

This is another minor patch update, with some bugfixes from fuzzed DWG's.

Here are the compressed sources:   (9.8MB)   (3.7MB) ...

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