OCaml

A generic graph library for OCaml.

A large collection of data structures and algorithms for OCaml.

OCaml library for combinatorics <https://www.lri.fr/~filliatr/combine/>.

A pure OCaml implementation of Zlib.

Fast implementation of queue (FIFO) in OCaml.

Implementation of Rabin's fingerprint and delta compression by P. MacDonald in OCaml (same as libXdiff

Library of Raft consensus algorithm implemented in OCaml

Library of YIQ NTSC transmission image difference alghoritm implemented in OCaml and ReasonML.

Library of YIQ NTSC transmission image difference alghoritm implemented in OCaml and ReasonML.

A community-maintained foundation library for your OCaml projects.

Declarative definition of command line interfaces for OCaml.

Jane Street Capital's full-fledged standard library overlay. A portable subset of Core is also available: Core_kernel.

Minimalist library for command-line parsing.

Pretty-printing library for OCaml.

Light library to deal with RPCs in OCaml.

A lightweight, modular standard library extension, string library, and interfaces to various libraries (bigarrays, Unix, etc.) BSD license.

Standard library for OCaml

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.

C Intermediate Language

formal proof management system

library and tools for accessing and modifying virtual machine disk images

a swiss-army knife for multimedia streaming, notably used for netradios and webtvs

cross-platform multi-network peer-to-peer daemon

Native, lightweight modal code editor.

management stack that configures and controls Xen-enabled hosts and resource pools, and co-ordinates resources within the pool.

Micro-benchmarking library for OCaml by Jane Street.

Benchmarking functions for measuring the run-time of functions using latency or throughput.

Partial solutions in OCaml are

Introduction to Unix Systems Programming, with an emphasis on communications between processes.

This book describes both the OCaml language and the theoretical grounds behind its powerful type system.

Infer is a static analyzer for Java, C and Objective-C

flow is a static type checker for JavaScript.

SLAyer is an automatic formal verification tool that uses separation logic to verify memory safety of C programs.

MemCAD is an abstract interpreter for shape analysis. MemCAD can verify C programs manipulating complex data structures.

Camelot is a modular and fully configurable OCaml linter and stylechecker.

Translator from OCaml to Coq to formally verify OCaml code.

MOPSA is a generic framework for building sound static analyzers based on the theory of abstract interpretation.

BAP is a reverse engineering and program analysis platform that targets binary programs.

BinCat is a binary code static analysis toolkit.

cwe_checker finds vulnerable patterns in binary executables.

Owi is a toolchain for working with WebAssembly (Wasm) in OCaml, featuring a powerful, parallel symbolic execution engine for Wasm. It also provides frontends for compiling and analyzing C and Rust programs.

Smt.ml is a frontend OCaml library that interfaces with multiple SMT solvers, enabling seamless integration of solvers like Z3, cvc5, Colibri2, Bitwuzla, and Alt-Ergo within OCaml programs.

A modern supercompiler for call-by-value functional languages.

A Lisp on LLVM written in OCaml.

It is now a dead project. Github Repo. Alternative website.

An interpreter for finding subtle bugs in programs written in standard C

Shopify's Liquid Templating language for OCaml.

Mezzo is a programming language in the ML tradition, which places strong emphasis on the control of aliasing and access to mutable memory.

effects-based direct-style IO for multicore OCaml.

a simple scheduler for OCaml 5.

is also available.

Web app (written in OCaml) underlying the learn-ocaml-corpus. Can be customized to serve lectures (with Markdown slides), playgrounds (with a toplevel prelude), and interactive exercises (with OCaml tests). MIT License.

Minor mode for Emacs that can display exercise topics and grade exercise solutions, after logging to a Learn-OCaml instance. MIT License.

An OCaml kernel for the Jupyter notebook.

Universal toplevel for OCaml with support for multiline edition, history, real-time and context-sensitive completion, colors, and more.

A command-line tool to format OCaml code.

A command-line tool to manage Github Issues.

Yeoman generator to scaffold OCaml modules.

A PlantUML (.puml) to XML (.xmi) converter.

99% of the solutions are here.

Exercism is your place to engage in thoughtful conversations about code. Explore simplicity, idiomatic language features, and expressive, readable code. Solutions.

OCaml library for reading, writing and modifying PDF files.

A neat interface for Slack in OCaml.

A Unicode library for OCaml.

Multilingualization for OCaml source code. Allows using Unicode identifiers in OCaml source code.

Unicode character database decoder for OCaml.

Unicode character properties for OCaml.

Unicode text normalization for OCaml.

Unicode text segmentation for OCaml.

Non-blocking streaming Unicode codec for OCaml.

Lambda-Term is a cross-platform library for manipulating the terminal. It provides an abstraction for keys, mouse events, and colors, as well as a set of widgets to write curses-like applications.

Notty is a declarative terminal library for OCaml, structured around the notion of composable images.

Self-contained OCaml bindings to linenoise; easy high-level readline functionality in OCaml.

QML Qt5 bindings for OCaml.

OCaml pattern-matching extended with regexps

Mirage is a programming framework for constructing secure, high-performance network applications across a variety of cloud computing and mobile platforms.

Read and write FAT-format filesystems from OCaml.

Pure OCaml low-level git bindings.

Pure OCaml implementation of the "vchan" shared-memory communication protocol.

A dumb OCaml logger.

A variant of the Bolt OCaml logging tool.

ZeroMQ bindings for OCaml with Async and Lwt wrappers.

nanomsg bindings for OCaml.

OCaml bindings for Apache Kafka.

AMQP client library for Async and Lwt.

Message Passing Interface bindings for OCaml.

OCaml implementation of the MQTT pubsub protocol.

OCaml code generator plugin for the Cap'n Proto serialization framework.

OCaml client library for Prometheus monitoring.

A pure OCaml implementation of the DNS protocol.

Fluentd logger for OCaml.

charrua-unix is a Unix DHCP daemon based on charrua-core.

in Dune. It appears to also be fully manual.

Reason's native Console.log

’s [@@deriving show].

a ppx_deriving-like.

another ppx_deriving-like.

again a ppx_deriving-like.

probably a ppxderiving-like with ppxtyperep_conv.

fully manual.

A simple library for forking child processes to perform work on multiple cores.

A library for spawning processes on a cluster of machines, and passing typed messages between them.

Process pool implementation for OCaml.

Parallelize computation over independent items, even if there is an infinite number of them.

Libraries and syntax extensions to offload intensive computations to parallel accelerators (multicore CPUs, GPUs and other accelerators compatible with GPGPU frameworks).

A compilation of resources

The drom tool is a wrapper over opam/dune in an attempt to provide a cargo-like user experience.

Reason and Ocaml project generator

Template for an ocaml project with modern tooling

OCaml Bioinformatics Library <http://biocaml.org>.

OCaml library for building bioinformatics pipelines.

Numerical library for OCaml.

OCaml library for general numerical work.

Bindings to frequently used C special functions library.

A linear algebra library in OCaml with type-based static size checking for matrix operations.

OCaml bindings for TensorFlow.

OCaml numerical library: dense and sparse matrix, linear algebra, regressions, maths and stats functions.

a pure OCaml regular expressions library with combinators, supporting several formats (glob, posix, str, etc.).

bindings to the PCRE library (perl-compatible regular expressions)

Humane-re attempts to provide an easy interface for 90% of your regex needs. Courtesy of ocaml-re.

Tyre is a set of combinators to build type-safe regular expressions, allowing automatic extraction and modification of matched groups.

TLS in pure OCaml.

Hash algorithms (like SHA or BLAKE2) in OCaml and C.

The Cryptokit library for OCaml provides a variety of cryptographic primitives that can be used to implement cryptographic protocols in security-sensitive applications.

A Commitment scheme library for Multi-party computations such as online auctions and gambling.

A small cryptographic library behind the ocaml-tls project. It is built to be straightforward to use, adhere to functional programming principles, and able to run in a Xen-based unikernel.

A serialization compiler for multiple languages (OCaml, Java, Python, Scala, Typescript) with a Binou or JSON format

Bencode (.torrent file format) reader/writer.

Extensible binary data format, like JSON but faster.

OCaml native CBOR decoder/encoder.

An optimized parsing and printing library for the JSON format.

A S-expression parser and printer

A lightweight and colourful test framework.

QCheck is a property testing library inspired from Haskell's QuickCheck

supports inline pragma's to generate tests.

A lightweight unit testing framework compatible with the Test Anything Protocol.

A framework for writing tests in OCaml, similar to Cram, developed by JaneStreet.

Collision-resistant IDs for server scalability & database performance.

PPX deriver designed to streamline the process of validating records.

Official OCaml port of Sqids. Generate short unique IDs from numbers.

Sinatra like web toolkit for OCaml.

A REST toolkit for OCaml. OCaml webmachine is a layer on top of cohttp that implements a state-machine-based HTTP request processor. It's particularly well-suited for writing RESTful APIs. As the name suggests, this is an OCaml port of the webmachine project.

A library for building dynamic webapps, using Jsofocaml

Elm architecture and (V)DOM for OCaml

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.

RFC3986 URI parsing library.

An OCaml bindings generator for JavaScript libraries.

RSS and Atom feed parsing

mustache.js logic-less templates in OCaml.

atd code generator (serialization) for OCaml/jsofocaml.

OCaml template engine almost compatible with jinja2.

Path-based dispatching for client- and server-side applications.

Functional HTML scraping and manipulation with CSS selectors, à la Python's Beautiful Soup.

Error-recovering streaming HTML5 and XML parsers, serializers.

genjsapi aims at simplifying the creation of OCaml bindings for Javascript libraries.

Typed routes for OCaml/ReasonML web applications.

Tidy Web framework for OCaml and ReasonML