Jansson Documentation

This is the documentation for Jansson 2.14, last updated Jun 28, 2023.


Jansson is a C library for encoding, decoding and manipulating JSON data. Its main features and design principles are:

  • Simple and intuitive API and data model
  • Comprehensive documentation
  • No dependencies on other libraries
  • Full Unicode support (UTF-8)
  • Extensive test suite

Jansson is licensed under the MIT license; see LICENSE in the source distribution for details.

Jansson is used in production and its API is stable. It works on numerous platforms, including numerous Unix like systems and Windows. It’s suitable for use on any system, including desktop, server, and small embedded systems.

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