Jansson is a C library for encoding, decoding and manipulating JSON data. It features:

Jansson is licensed under the MIT license.

Jansson's mailing list is jansson-users at Google Groups. You're welcome to ask for help, send suggestions, submit patches, etc.


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The latest release is Jansson v2.13.1, released on 2020-05-07.

The latest version is always available at these links: tar.gz (sig), tar.bz2 (sig)

For the source code and downloadable documentation of older releases, see the release archive. The documentation of older releases can also be viewed online: 2.12, 2.11, 2.10, 2.9, 2.8, 2.7, 2.6, 2.5, 2.4, 2.3, 2.2, 2.1, 2.0, 1.3, 1.2, 1.1, 1.0


The Jansson source repository is hosted at GitHub.

Clone the source:

git clone https://github.com/akheron/jansson
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