hs-bindgen

May 19, 2026 · View on GitHub

hs-bindgen is a Haskell library that automatically generates Haskell FFI bindings from C header files.

Warning

This project has not had an official release yet. There is a wide variety of C (and C preprocessor) code in the world, so we are currently soliciting feedback prior to the first official release. Please try it out! If something breaks, please check the issues to see if the problem is already known, and open an issue if not.

Check the releases (RSS) for release information. A Hackage package will be made available from the first official release.

Documentation

Blog posts

Second pre-release of hs-bindgen by Edsko de Vries (27 March 2026)
hs-bindgen 0.1-alpha release by Edsko de Vries (10 February 2026)

Community

Wait, this isn't Haskell... by Curtis Chin Jen Sem (26 December 2025)

Papers

Automatic C Bindings Generation for Haskell (9 October 2025)
- Presentation

Examples

We test hs-bindgen with various C projects, and we include some examples in this repository. Please note that these are used for testing and are not meant to be complete. See the examples README for details.

Examples include:

Botan, a C++ cryptography library: bindings
libpcap, an interface to various kernel packet capture mechanisms: bindings
MiniSat, a minimalistic, open-source SAT solver: bindings
QR-Code-generator, a library for generating QR codes: bindings
RogueUtil, a cross-platform C library for terminal manipulation: bindings
rpm, a powerful package management system: bindings

Packages in this repository

c-expr-dsl, a library that provides a DSL for the language support by c-expr-runtime
c-expr-runtime, a library that provides a Haskell DSL for simple C arithmetic expressions
hs-bindgen, a utility that automatically generates Haskell bindings from C headers
hs-bindgen-runtime, a library that provides runtime support for code generated by hs-bindgen
hs-bindgen-test-runtime, a library for testing bindings generated by hs-bindgen

Supporting packages

doxygen-parser, a parser for the XML files generated by the Doxygen CLI
libclang-bindings, a library that provides bindings for the LLVM/Clang libclang C API

Contributors

Our thanks go to those who have contributed to hs-bindgen and supporting packages with development, bug reports, feature requests, blog posts, etc., including: