- agda, a functional programming language.
- arbtt, an automatic time tracker.
- Blink SIP client for MacOS X
- cabal, a system for packaging Haskell libraries.
- Context Free, generate graphic designs from context free grammars.
- Darcs, David's Advanced Revision Control System.
- DDC, The Disciplined Disciple Compiler, a compiler for a Haskell dialect
- Grapefruit, a library for Functional Reactive Programming with a current focus on user interfaces
- Gtk2Hs, A GUI Library for Haskell based on Gtk+.
- hledger, accounting tool.
- Nikki and the Robots, a platform game
- Son of Grid Engine, a continuation of Sun's Grid Engine distributed resource manager project.
- Tahoe-LAFS, a secure, decentralized storage grid
- xmonad, a tiling window manager
- Zwiki, a Zope-based wiki engine.
- Bluetile a tiling windows manager for GNOME
- C->Haskell, an interface generator for Haskell.
- Cedilla, a best-effort text printer.
- CL-ObjC, a bridge between Common Lisp and Objective C
- CL-Debian, Debian maintains most of the Common Lisp packages in Darcs.
- CL-Yacc, a LALR(1) parser generator for Common Lisp.
- Darcheology, A Mac OS X Client and Explorer for Darcs.
- DrIFT, a type sensitive preprocessor for Haskell.
- Fenfire, a graph-based notetaking system built on Semantic Web technologies .
- fish, the friendly interactive shell.
- GTS, the GNU Triangulated Surface Library.
- Haskore, Composing music in Haskell.
- hscairo, Cairo bindings for Haskell.
- hs-plugins, dynamically loaded plugins for Haskell.
- Lambdabot,
- PCRCommander is an application that allows you to control the popular XM radio PCR product and compatible devices. IRC 'bot.
- Scratchbox, a crosscompiling toolkit.
- yi, A dynamic editor in Haskell.
- Jewelry Luv online jewelry store is using darcs internally for all projects.
- Summersault Website Development is using darcs all projects, from a busy national website to managing config files.
- Scanned In Avian is using darcs internally for all projects.
- JanRain, Inc. is using darcs internally and externally (http://www.openidenabled.com/resources/darcsweb)
- Weebly, Inc. is using darcs to manage its source repositories and push updates
- AG Projects have more than 20 repos managed with Darcs
