Open Source OCaml (Objective Caml) Integrated Development Environments (IDE)

Merlin is an editor service that provides modern IDE features for OCaml. Emacs and Vim support is provided out-of-the-box. Since version 4.0, merlin's repository has a dedicated branch per version of OCaml, and the branch name consist of the concatenation of OCaml major version and minor version. So, for instance, OCaml 4.11.* maps to branch 411. The main branch is usually synchronized with the branch compatible with the latest (almost-)released version of OCaml. Note: if you're using an older version of OCaml (between 4.02 and 4.10) you will want to build the 3.4 branch, although it won't contain the most recent features. If you want to work on merlin, you'll want to avoid the -p merlin, to build in dev mode, with some extra warnings enabled. In that case you'll also need an extra dependency.

Camelia is an IDE for OCaml designed with students and new users in mind. It sports syntax highlighting, tool-tip type checking, clickable error explanations, an integrated debugger, and more.

The CodeTime platform covers every aspect of parallel software from authoring, through distribution, to run-time. Its goals are: high programmer productivity; write once, run high performance anywhere; and wide acceptance.

Integrated development environment for OCaml programming language. It offers a flexible editor with a content type sensitive content assist processor. It provides the possibility to compile and run OCaml projects together with the convenient presentation

LaTeX editor written in Objective Caml (OCaml) with the GTK+ toolkit. It provides multi-document interface, syntax highlighting, code completion, UTF-8 support, plugins, customizable GUI, regexp-based find and replace and more...

The ODT (OCaml Development Tools) project aims to be like the JDT (Java Development Tools) eclipse plugins. It provides IDE features for OCaml application developments. See more on http://ocamldt.free.fr (tutorial, installation notes and more).