Top OCaml Compilers repositories on GitHub
Front-ends, back-ends, and language toolchains. Filtered to projects whose primary language is OCaml.
Ranked by stars across 30 OCaml repositories tagged compiler. Refreshed daily.
- 1ocaml/ocaml★ 6,309 · ⑂ 1,222
The core OCaml system: compilers, runtime system, base libraries
- ocaml
- compiler
- functional-language
- 2austral/austral★ 1,492 · ⑂ 56
Systems language with linear types and capability-based security.
- linear-types
- compiler
- capabilities
- 3ocsigen/js_of_ocaml★ 1,104 · ⑂ 201
Compiler from OCaml to Javascript.
- javascript
- ocaml
- compiler
- ocsigen
- jsoo
- 4leostera/caramel★ 1,102 · ⑂ 26
:candy: a functional language for building type-safe, scalable, and maintainable applications
- ocaml
- erlang
- compiler
- caramel
- elixir
- functional-language
- 5AeneasVerif/aeneas★ 737 · ⑂ 74
A verification toolchain for Rust programs
- compiler
- coq
- deductive-reasoning
- formal-methods
- formal-verification
- fstar
- 6artagnon/rhine-ml★ 634 · ⑂ 24
🏞 an OCaml compiler for an untyped lisp
- programming-language
- ocaml
- llvm
- compiler
- 7vult-dsp/vult★ 536 · ⑂ 30
Vult is a transcompiler well suited to write high-performance DSP code
- ocaml
- compiler
- dsp
- synthesizer
- vult
- microcontroller
- 8hirrolot/mazeppa★ 475 · ⑂ 10
A modern supercompiler for call-by-value functional languages
- compiler
- functional
- functional-programming
- language
- optimization
- performance
- 9
- 10nlsandler/nqcc2★ 234 · ⑂ 31
Reference implementation for Writing a C Compiler
- c
- compiler
- ocaml
- reference-implementation
- 11darklang/philip2★ 210 · ⑂ 5
An Elm to OCaml compiler
- elm
- ocaml
- compiler
- functional
- frontend
- elm-architecture
- 12mransan/ocaml-protoc★ 188 · ⑂ 34
A Protobuf Compiler for OCaml
- ocaml
- protobuf
- serialization
- protocol
- compiler
- 13nanocaml/nanocaml★ 147 · ⑂ 7
Nanopass for OCaml
- nanopass-framework
- ocaml
- compiler
- compiler-design
- framework
- ppx
- 14Alex23087/Perk★ 139 · ⑂ 11
Modern low level programming language designed for kernel development
- compiler
- lambda-functions
- low-level
- programming-language
- 15kit-ty-kate/labrys★ 115 · ⑂ 3
A toy language based on LLVM that implements the System Fω type-system
- llvm
- ocaml
- programming-language
- compiler
- language
- type-system
- 16
- 17Ekdohibs/joujou★ 91 · ⑂ 5
A compiler from a small functional language to C. Especially features algebraic effects and handlers with multishot continuations, and a static type system with inference of types and effects, with subtyping.
- functional-programming
- algebraic-effects
- type-inference
- continuations
- handlers
- compiler
- 18lichenscript/lichenscript★ 68 · ⑂ 3
A quick and small language compiled to JavaScript/C. Easy to integrated with the Web Ecosystem.
- language
- compiler
- webassembly
- wasm
- iot
- 19weavery/sworn★ 53 · ⑂ 1
Sworn compiles Clarity smart contracts into SmartWeave contracts.
- arweave
- smartweave
- clarity
- compiler
- 20
- 21weavery/clarc★ 49 · ⑂ 3
Clarc compiles Clarity smart contracts into Ethereum virtual machine (EVM) bytecode.
- clarity
- ethereum
- evm
- compiler
- 22nickzuber/infrared★ 47 · ⑂ 2
:sparkles::rocket: Blazing fast, inferred static type checker for JavaScript.
- type-checking
- javascript
- fast
- static-analysis
- zero-configuration
- tool
- 23ayazhafiz/plts★ 34 · ⑂ 4
A collection of programming languages and type systems.
- programming-language-theory
- type-systems
- programming-language
- compiler
- interpreter
- 24
- 25prg-titech/baccaml★ 34 · ⑂ 3
Experimental implementation of a meta-hybrid JIT compiler mixing trace- and method-based compilation strategies.
- jit-compiler
- meta-hybrid-jit
- tracing-jit
- meta-tracing-jit
- compiler
Find OCaml engineers shipping Compilers
The list above ranks the most-starred public OCaml repositories tagged with the Compilers topic, drawn from the public GitHub graph. Across 30 matching repositories, the contributors are a tight cluster of engineers with both OCaml chops and real Compilers experience.
That overlap is rare. Most OCaml engineers haven’t shipped Compilers, and most Compilers maintainers don’t write OCaml. The people on this list’s contributor graph are the ones who do both.
Refolk turns this list into a search. Ask for “OCaml Compilers maintainers hiring” or “OCaml engineers shipping Compilers in 2025” and Refolk returns a ranked shortlist with the commits, profiles, and projects behind each name.
How this list is built
Last refreshed: Thu, 07 May 2026 06:52:25 GMT
Need a more specific search?
Refolk runs natural-language searches across GitHub, LinkedIn, and the open web. Try one of these:
Related lists
- Rust · Compilers
- C · Compilers
- Haskell · Compilers
- TypeScript · React
- TypeScript · Next.js
- TypeScript · Vue
- TypeScript · Svelte
- TypeScript · Tailwind CSS
See all repository lists.