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Awesome Ocaml
A curated collection of awesome OCaml tools, frameworks, libraries and articles.
ocaml-community/awesome-ocaml
#awesome
#ocaml
#programming-language
#resources
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OCamlPro/owi
Owi: Seamless program analysis for C, C++, Go, Haskell, LLVM, Rust, Wasm and Zig.
GitHub topics
- Updated
- 2026-11-02
- Lists
- 2 list mentions
- First commit
- 2021-10-21
- License
- AGPL-3.0
- Issues
- 160 open
329
stars
- Forks
- 41
- Commits
- 2,798 commits
- Star growth, last 7 days
- 0 0.0%
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- 0 0.0%
microsoft/SLAyer
SLAyer is an automatic formal verification tool that uses separation logic to verify memory safety of C programs.
Archived
Stack
- Updated
- 2016-07-14
- Lists
- 1 list mention
- First commit
- 2016-01-13
- License
- NOASSERTION
- Issues
- 4 open
326
stars
- Forks
- 24
- Commits
- 9 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mirleft/ocaml-tls
TLS in pure OCaml
AI dev
- Updated
- 2026-10-21
- Lists
- 1 list mention
- First commit
- 2014-02-13
- License
- BSD-2-Clause
- Issues
- 5 open
321
stars
- Forks
- 70
- Commits
- 2,100 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
akabe/ocaml-jupyter
An OCaml kernel for Jupyter (IPython) notebook
Stack
- Updated
- 2026-03-12
- Lists
- 1 list mention
- First commit
- 2017-07-14
- License
- MIT
- Issues
- 9 open
319
stars
- Forks
- 49
- Commits
- 424 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
aantron/bisect_ppx
Code coverage for OCaml and ReScript
- Updated
- 2025-10-12
- Lists
- 1 list mention
- First commit
- 2008-07-06
- License
- MIT
- Issues
- 25 open
317
stars
- Forks
- 69
- Commits
- 1,082 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
ocaml-multicore/parallel-programming-in-multicore-ocaml
Tutorial on Multicore OCaml parallel programming with domainslib
Stack
GitHub topics
- Updated
- 2024-03-12
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- 1 list mention
- First commit
- 2020-06-30
- License
- ISC
- Issues
- 6 open
- Forks
- 6
- Commits
- 30 commits
- Star growth, last 7 days
- 0 0.0%
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- 0 0.0%
tmattio/spin
OCaml project generator.
- Updated
- 2024-10-07
- Lists
- 1 list mention
- First commit
- 2019-12-13
- License
- ISC
- Issues
- 14 open
299
stars
- Forks
- 15
- Commits
- 393 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
LaurentMazare/tensorflow-ocaml
OCaml bindings for TensorFlow
Stack
- Updated
- 2019-07-06
- Lists
- 2 list mentions
- First commit
- 2016-03-14
- License
- Apache-2.0
- Issues
- 5 open
- Forks
- 27
- Commits
- 856 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
formal-land/rocq-of-ocaml
Formal verification for OCaml, with Rocq
- Updated
- 2026-05-18
- Lists
- 1 list mention
- First commit
- 2013-10-31
- License
- MIT
- Issues
- 17 open
- Forks
- 22
- Commits
- 1,245 commits
- Star growth, last 7 days
- 0 0.0%
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- 0 0.0%
ocaml-community/sedlex
An OCaml lexer generator for Unicode
Stack
- Updated
- 2026-10-12
- Lists
- 1 list mention
- First commit
- 2003-09-18
- License
- MIT
- Issues
- 19 open
270
stars
- Forks
- 43
- Commits
- 356 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
ocaml/ocaml-re
Pure OCaml regular expressions, with support for Perl and POSIX-style strings
Stack
GitHub topics
- Updated
- 2026-10-16
- Lists
- 1 list mention
- First commit
- 2011-12-21
- License
- NOASSERTION
- Issues
- 35 open
260
stars
- Forks
- 72
- Commits
- 1,113 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
backtracking/ocamlgraph
OCaml graph library
Stack
- Updated
- 2026-10-22
- Lists
- 1 list mention
- First commit
- 2006-08-30
- License
- NOASSERTION
- Issues
- 21 open
253
stars
- Forks
- 66
- Commits
- 777 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
hackwaly/ocamlearlybird
OCaml debug adapter
GitHub topics
- Updated
- 2026-09-27
- Lists
- 1 list mention
- First commit
- 2021-01-26
- License
- MIT
- Issues
- 30 open
237
stars
- Forks
- 26
- Commits
- 221 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
ocaml-community/lambda-term
Terminal manipulation library for OCaml
- Updated
- 2026-08-18
- Lists
- 1 list mention
- First commit
- 2011-02-20
- License
- NOASSERTION
- Issues
- 23 open
- Forks
- 43
- Commits
- 580 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
johnwhitington/camlpdf
OCaml library for reading, writing and modifying PDF files
Stack
- Updated
- 2026-11-02
- Lists
- 1 list mention
- First commit
- 2013-07-15
- License
- NOASSERTION
- Issues
- 10 open
230
stars
- Forks
- 32
- Commits
- 938 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
janestreet/core_kernel
Jane Street's standard library overlay (kernel)
Stack
- Updated
- 2026-07-10
- Lists
- 1 list mention
- First commit
- 2013-06-03
- License
- MIT
- Issues
- 2 open
228
stars
- Forks
- 67
- Commits
- 485 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
inhabitedtype/ocaml-webmachine
A REST toolkit for OCaml
Stack
GitHub topics
- Updated
- 2021-10-19
- Lists
- 1 list mention
- First commit
- 2015-03-03
- License
- NOASSERTION
- Issues
- 13 open
- Forks
- 28
- Commits
- 241 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
anmonteiro/piaf
Web library for OCaml with support for HTTP/1.X / HTTP/2
Stack
GitHub topics
- Updated
- 2026-07-25
- Lists
- 1 list mention
- First commit
- 2019-12-01
- License
- BSD-3-Clause
- Issues
- 20 open
219
stars
- Forks
- 27
- Commits
- 256 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
LexiFi/ocaml-vdom
Elm architecture and (V)DOM for OCaml
Stack
- Updated
- 2026-10-27
- Lists
- 1 list mention
- First commit
- 2016-11-22
- License
- MIT
- Issues
- 3 open
210
stars
- Forks
- 15
- Commits
- 84 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
OCamlPro/drom
drom is a wrapper over opam/dune in an attempt to provide a cargo-like user experience. It can be used to create full OCaml projects with sphinx and odoc documentation. It has specific knowledge of Github and will generate files for Github Actions CI and Github pages.
Stack
- Updated
- 2025-10-27
- Lists
- 1 list mention
- First commit
- 2020-08-17
- License
- NOASSERTION
- Issues
- 51 open
200
stars
- Forks
- 24
- Commits
- 353 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
janestreet/sexplib
Automated S-expression conversion
Stack
- Updated
- 2026-07-10
- Lists
- 1 list mention
- First commit
- 2013-01-28
- License
- MIT
- Issues
- 5 open
198
stars
- Forks
- 33
- Commits
- 184 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
janestreet/ppx_expect
Cram like framework for OCaml
Stack
- Updated
- 2026-07-10
- Lists
- 1 list mention
- First commit
- 2016-01-12
- License
- MIT
- Issues
- 4 open
196
stars
- Forks
- 35
- Commits
- 180 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
semgrep/pfff
pfff is mainly an OCaml API to write static analysis, dynamic analysis, code visualizations, code navigations, or style-preserving source-to-source transformations such as refactorings on source code.
Archived
- Updated
- 2026-02-05
- Lists
- 1 list mention
- First commit
- 2010-09-23
- License
- NOASSERTION
- Issues
- 6 open
183
stars
- Forks
- 25
- Commits
- 10,061 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
Drup/tyre
Typed Regular Expressions
- Updated
- 2025-12-08
- Lists
- 1 list mention
- First commit
- 2016-05-21
- License
- ISC
- Issues
- 8 open
182
stars
- Forks
- 5
- Commits
- 187 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
LexiFi/gen_js_api
Easy OCaml bindings for Javascript libraries
Stack
- Updated
- 2026-07-15
- Lists
- 1 list mention
- First commit
- 2015-03-27
- License
- MIT
- Issues
- 12 open
182
stars
- Forks
- 30
- Commits
- 556 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
hackwaly/vscode-ocaml
An extension for VS Code which provides support for the OCaml language.
Archived
Stack
GitHub topics
- Updated
- 2020-11-30
- Lists
- 1 list mention
- First commit
- 2016-06-06
- License
- MIT
- Issues
- 34 open
173
stars
- Forks
- 24
- Commits
- 212 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
ocaml-ppx/ppx_deriving_yojson
A Yojson codec generator for OCaml.
- Updated
- 2025-08-11
- Lists
- 1 list mention
- First commit
- 2014-09-06
- License
- MIT
- Issues
- 34 open
- Forks
- 54
- Commits
- 331 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
Kakadu/lablqml
Interfacing Qt/QML with OCaml. Formely known as lablqt
- Updated
- 2026-08-08
- Lists
- 1 list mention
- First commit
- 2011-04-21
- License
- LGPL-2.1
- Issues
- 14 open
165
stars
- Forks
- 18
- Commits
- 704 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
nrnrnr/qc--
Quick C-- compiler (no longer maintained)
Archived
Stack
- Updated
- 2014-01-24
- Lists
- 1 list mention
- First commit
- 1999-08-18
- License
- Unknown
- Issues
- 0 open
163
stars
- Forks
- 19
- Commits
- 4,050 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
pyrocat101/opal
Self-contained monadic parser combinators for OCaml
Stack
GitHub topics
- Updated
- 2023-07-24
- Lists
- 1 list mention
- First commit
- 2015-01-13
- License
- MIT
- Issues
- 3 open
156
stars
- Forks
- 14
- Commits
- 29 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
stevenvar/OMicroB
An OCaml generic virtual machine for microcontrollers
Stack
- Updated
- 2026-06-02
- Lists
- 1 list mention
- First commit
- 2017-04-11
- License
- NOASSERTION
- Issues
- 8 open
156
stars
- Forks
- 27
- Commits
- 493 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
roddyyaga/ppx_rapper
Syntax extension for writing SQL in OCaml
- Updated
- 2026-08-14
- Lists
- 1 list mention
- First commit
- 2018-08-13
- License
- NOASSERTION
- Issues
- 19 open
153
stars
- Forks
- 23
- Commits
- 311 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
anuragsoni/routes
typed bidirectional router for OCaml/ReasonML web applications
Stack
GitHub topics
- Updated
- 2026-06-20
- Lists
- 1 list mention
- First commit
- 2019-04-01
- License
- BSD-3-Clause
- Issues
- 0 open
150
stars
- Forks
- 12
- Commits
- 287 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mathiasbourgoin/Sarek
SIMT Abstractions for Runtime Extensible Kernels (GPGPU programing with OCaml)
- Updated
- 2026-10-18
- Lists
- 1 list mention
- First commit
- 2014-02-11
- License
- NOASSERTION
- Issues
- 26 open
150
stars
- Forks
- 12
- Commits
- 2,344 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
aantron/markup.ml
Error-recovering streaming HTML5 and XML parsers
- Updated
- 2024-10-06
- Lists
- 1 list mention
- First commit
- 2016-01-11
- License
- MIT
- Issues
- 23 open
149
stars
- Forks
- 22
- Commits
- 198 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
robur-coop/miou
A simple scheduler for OCaml 5
Stack
GitHub topics
- Updated
- 2026-10-13
- Lists
- 1 list mention
- First commit
- 2023-06-06
- License
- MIT
- Issues
- 10 open
144
stars
- Forks
- 14
- Commits
- 624 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
tategakibunko/jingoo
OCaml template engine almost compatible with jinja2
Stack
GitHub topics
- Updated
- 2026-07-24
- Lists
- 1 list mention
- First commit
- 2012-02-18
- License
- NOASSERTION
- Issues
- 16 open
144
stars
- Forks
- 23
- Commits
- 729 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mmottl/sqlite3-ocaml
OCaml bindings to the SQLite3 database
- Updated
- 2026-08-12
- Lists
- 1 list mention
- First commit
- 2008-11-27
- License
- MIT
- Issues
- 2 open
132
stars
- Forks
- 42
- Commits
- 385 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
andrenth/sequoia
OCaml type-safe query builder with syntax tree extension
Stack
- Updated
- 2022-12-23
- Lists
- 1 list mention
- First commit
- 2015-06-23
- License
- Unknown
- Issues
- 10 open
131
stars
- Forks
- 16
- Commits
- 77 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
arenadotio/pgx
A pure OCaml PostgreSQL client library
Archived
Stack
GitHub topics
- Updated
- 2022-10-26
- Lists
- 1 list mention
- First commit
- 2017-12-21
- License
- NOASSERTION
- Issues
- 19 open
129
stars
- Forks
- 19
- Commits
- 124 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
smolkaj/nice-parser
Nice parsers in OCaml without the boilerplate
- Updated
- 2024-05-06
- Lists
- 1 list mention
- First commit
- 2017-04-25
- License
- MIT
- Issues
- 0 open
128
stars
- Forks
- 12
- Commits
- 13 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
biocaml/biocaml
OCaml Bioinformatics Library
Stack
- Updated
- 2026-10-01
- Lists
- 2 list mentions
- First commit
- 2008-08-29
- License
- NOASSERTION
- Issues
- 36 open
123
stars
- Forks
- 23
- Commits
- 1,710 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
yoriyuki/Camomile
A Unicode library for OCaml
Stack
- Updated
- 2024-04-01
- Lists
- 1 list mention
- First commit
- 2010-05-17
- License
- NOASSERTION
- Issues
- 22 open
122
stars
- Forks
- 27
- Commits
- 206 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mirage/decompress
Pure OCaml implementation of Zlib.
Stack
GitHub topics
- Updated
- 2026-10-01
- Lists
- 1 list mention
- First commit
- 2015-04-28
- License
- MIT
- Issues
- 9 open
120
stars
- Forks
- 19
- Commits
- 749 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mirage/ocaml-dns
OCaml implementation of the DNS protocol
Stack
GitHub topics
- Updated
- 2026-11-03
- Lists
- 1 list mention
- First commit
- 2012-01-09
- License
- BSD-2-Clause
- Issues
- 21 open
120
stars
- Forks
- 46
- Commits
- 1,752 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
rleonid/oml
OCaml Math Library
Stack
- Updated
- 2018-02-01
- Lists
- 2 list mentions
- First commit
- 2015-03-12
- License
- Apache-2.0
- Issues
- 24 open
120
stars
- Forks
- 9
- Commits
- 680 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mirage/ocaml-cow
Caml on the Web (COW) is a set of parsers and syntax extensions to let you manipulate HTML, CSS, XML, JSON and Markdown directly from OCaml code.
Stack
- Updated
- 2023-12-07
- Lists
- 1 list mention
- First commit
- 2012-06-22
- License
- NOASSERTION
- Issues
- 4 open
112
stars
- Forks
- 23
- Commits
- 359 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
mirleft/ocaml-nocrypto
OCaml cryptographic library
Stack
- Updated
- 2020-04-17
- Lists
- 1 list mention
- First commit
- 2014-02-23
- License
- ISC
- Issues
- 43 open
111
stars
- Forks
- 54
- Commits
- 842 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
xavierleroy/cryptokit
A library of cryptographic primitives (ciphers, hashes, etc) for OCaml
Stack
- Updated
- 2026-09-07
- Lists
- 1 list mention
- First commit
- 2002-03-31
- License
- NOASSERTION
- Issues
- 5 open
109
stars
- Forks
- 28
- Commits
- 214 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%
dkim/rwo-lwt
Lwt Translations of the Async Code Examples in Real World OCaml
- Updated
- 2017-06-04
- Lists
- 1 list mention
- First commit
- 2017-05-01
- License
- CC0-1.0
- Issues
- 0 open
107
stars
- Forks
- 6
- Commits
- 28 commits
- Star growth, last 7 days
- 0 0.0%
- Commit velocity, last 7 days
- 0 0.0%