msgpack/msgpack-c

MessagePack implementation for C and C++ / msgpack.org[C/C++]

3,352

2,106 commits

updated Sep 19, 2026

See the code

README

msgpack for C/C++

It's like JSON but smaller and faster.

Overview

MessagePack is an efficient binary serialization format, which lets you exchange data among multiple languages like JSON, except that it's faster and smaller. Small integers are encoded into a single byte and short strings require only one extra byte in addition to the strings themselves.

C Library

See c_master

C++ Library

See cpp_master

Documentation

You can get additional information including the tutorial on the wiki.

Contributing

msgpack-c is developed on GitHub at msgpack/msgpack-c. To report an issue or send a pull request, use the issue tracker.

Here's the list of great contributors.

License

msgpack-c is licensed under the Boost Software License, Version 1.0. See the LICENSE_1_0.txt file for details.

Significant stargazers

(top 24 of 31)

Christopher S. Meiklejohn

724 followers · starred Jul 2012

Benjamin Elder

819 followers · starred Jun 2014

Thiago Farina

29 followers · starred Jul 2020

Shun Sakai

368 followers · starred Jul 2025

msgpack/msgpack-c

MessagePack implementation for C and C++ / msgpack.org[C/C++]

3,352

2,106 commits

updated Sep 19, 2026

See the code

README

msgpack for C/C++

It's like JSON but smaller and faster.

Overview

MessagePack is an efficient binary serialization format, which lets you exchange data among multiple languages like JSON, except that it's faster and smaller. Small integers are encoded into a single byte and short strings require only one extra byte in addition to the strings themselves.

C Library

See c_master

C++ Library

See cpp_master

Documentation

You can get additional information including the tutorial on the wiki.

Contributing

msgpack-c is developed on GitHub at msgpack/msgpack-c. To report an issue or send a pull request, use the issue tracker.

Here's the list of great contributors.

License

msgpack-c is licensed under the Boost Software License, Version 1.0. See the LICENSE_1_0.txt file for details.

Significant stargazers

(top 24 of 31)

Christopher S. Meiklejohn

724 followers · starred Jul 2012

Benjamin Elder

819 followers · starred Jun 2014

Thiago Farina

29 followers · starred Jul 2020

Shun Sakai

368 followers · starred Jul 2025