General utility functions

Disk-based constant hash tables (Dustin Sallings)

Cis : compact integer sets (Sébastien Ferré)

Input channels

Refer Based Config Files

Functions to Parse Comma-Separated Values (CSV)

Deprecated functions and modules

Dbm Functions Functions that extend the Dbm module.

Functions to execute processes

Fast functional arrays (Thomas M Breuel)

File-Manipulation Functions

Text-formatting functions

Two-dimensional "ASCII" pictures.

Validators

Building a command-line application

I/O Functions

Simplistic Json Output

List functions

Simple parameterized macros for text strings.

Standard library's Map with some extra functions

ISO 2709 MARC Records

Marshaling with Tags, Versioning, and Magic Numbers

Mbox parser (Xavier Leroy)

Operator precedence parsing

Password Handling

This module only exists for organizational purposes and shouldn't even be included in the documentation.

Additional functions for Re module.

Parse and Generate Extended Refer Databases

Regular expression-based functions

Standard library's Set with some extra functions

Stream Functions

String Functions

syslog(3) routines for OCaml (Shawn Wagner and Keith Waclena)

Time and Date Functions

Sets as ordered polymorphic lists (Sébastien Ferré)

Suffix trees (Sébastien Ferré)

XPath Functions

Xmlm Functions that extend Daniel Bünzli's Xmlm module.