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Expat

Expat is a stream-oriented XML parser library written in C, maintained by the Expat maintainers and embedded in many other products. It is free software under the MIT licence.

Licensing at a Glance

  • Open source

  1. Expat is copyright Thai Open Source Software Center Ltd and Clark Cooper (1998-2000) and the Expat maintainers (2001-2025), under a permissive MIT-style licence.[1]

  2. The licence grants free of charge the right to use, copy, modify, merge, publish, distribute, sublicense and sell copies, provided the copyright and permission notice is included in all copies.[2]

  3. Expat is a stream-oriented XML parser library written in C.[3]

  4. Expat publishes frequent maintenance releases that include security fixes, such as Expat 2.8.5 on 2026-09-22.[4]

Products

References

  1. libexpat/expat/COPYING at master · libexpat/libexpat · GitHub · github.com · retrieved 2026-09-27
  2. libexpat/expat/COPYING at master · libexpat/libexpat · GitHub · github.com · retrieved 2026-09-27
  3. Welcome to Expat! · Expat XML parser · libexpat.github.io · retrieved 2026-09-27
  4. Welcome to Expat! · Expat XML parser · libexpat.github.io · retrieved 2026-09-27
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