Base is a complete and portable alternative to the OCaml standard library. It provides all standard functionalities one would expect from a language standard library. It uses consistent conventions across all of its module.

Base aims to be usable in any context. As a result system dependent features such as I/O are not offered by Base. They are instead provided by companion libraries such as ocaml-stdio.

This package provides string type based on [Bigarray], for use in I/O and C-bindings.

This library offers a lightweight way for applications protocols to version themselves. The more protocols that add themselves to Known_protocol, the nicer error messages we will get when connecting to a service while using the wrong protocol.

opam-installer is a tool for installing OCaml packages based on .install files defined by the OPAM package manager. It is useful for installing OCaml packages without requiring the entirety of OPAM.

Provides a single module named Stringext that provides a grab bag of often used but missing string functions from the stdlib. E.g, split, full_split, cut, rcut, etc..

Tsdl is an OCaml library providing thin bindings to the cross-platform SDL C library.

IO pages are page-aligned, and wrapped in the Cstruct library to avoid copying the data contained within the page.

This package implements an Ocaml language server implementation.

This package provides a parser of email address according RFC822, RFC2822, RFC5321 and RFC6532. It handles UTF-8 email addresses and encoded-word according RFC2047.

Implements arithmetic and logical operations over arbitrary-precision integers. It uses GMP to efficiently implement arithmetic over big integers. Small integers are represented as Caml unboxed integers, for speed and space economy.

Hex is a minimal library providing hexadecimal converters.

Binary Analysis Platform is a framework for writing program analysis tools, that target binary files. The framework consists of a plethora of libraries, plugins, and frontends. The libraries provide code reusability, the plugins facilitate extensibility, and the frontends serve as entry points.

This package can automatically generate runtime types from type definitions.

This package provides a bundle of useful runtime functions for applications built with MirageOS

Helper functions for writing expect tests.

Cohttp is an OCaml library for creating HTTP daemons. It has a portable HTTP parser, and implementations using various asynchronous programming libraries.

Js_of_ocaml is a compiler from OCaml bytecode to JavaScript. It makes it possible to run pure OCaml programs in JavaScript environment like browsers and Node.js.

Uuidm is an OCaml module implementing 128 bits universally unique identifiers (UUIDs) version 3, 5 (named based with MD5, SHA-1 hashing) and 4 (random based) according to RFC 4122.

Unix-specific extensions to some of the modules defined in core and core_kernel.

Crowbar is a library for testing code, combining QuickCheck-style property-based testing and the magical bug-finding powers of afl-fuzz.

Cinaps is a trivial Metaprogramming tool using the OCaml toplevel. It is based on the same idea as expectation tests. The user writes some OCaml code inside special comments and cinaps makes sure that what follows is what is printed by the OCaml code.

This package provides a GLR parser generator for OCaml. It is able to generate self-extensible parsers (also called adaptive parsers) as well as extensible lexers for the parsers it produces.

This library provides facilities to parse version numbers of the OCaml compiler, and enumerates the various official OCaml releases and configuration variants.

This library parses ocaml compiler output and returns it as ocaml values. This library offers no backwards compatibility guarantees.