If you add more editor support, don't forget to add it to the FAQ as well.

The following editors have some Nim support:

Visual Studio Code aka VSCode

• https://marketplace.visualstudio.com/items?itemName=kosz78.nim (Nim Extension)

• Syntax Highlight (nim, nims, nimble, nim.cfg)

• Code Completion

• Goto Definition

• Find References

• File outline

• Lint-on-save (optional)

• Build-on-save and / or hotkey (optional)

• Workspace symbol search

• Related extensions and information for Nim with VSCode

• https://code.visualstudio.com (editor homepage)

• https://marketplace.visualstudio.com/items?itemName=oderwat.indent-rainbow (indent visualizer)

• https://marketplace.visualstudio.com/items?itemName=mattn.Runner (code runner)

• https://marketplace.visualstudio.com/items?itemName=webfreak.debug (debugger)

• http://forum.nim-lang.org/t/2061 (Nim Forum Thread)

Emacs

• https://github.com/nim-lang/nim-mode (requires emacs 24.4)
• https://github.com/jameshfisher/nimrod-mode (works with emacs 23 too, as of 2014-02-15)

Vim

• https://github.com/zah/nim.vim/

  • Syntax Highlighting
  • Auto-indent
  • Build/Jump to errors within Vim
  • Project Navigation and Jump to Definition (using the Ctags support listed below or Nim's idetools command)

• https://github.com/baabelfish/nvim-nim

  A very new plugin for Vim and Neovim, still in heavy development.

• http://gradha.github.io/articles/2014/02/invoking-dash-from-the-command-line-vim.html

  Instructions to map Vim's K letter to look up documentation under MacOSX using Dash.

LiClipse

• http://www.liclipse.com

LiClipse is a plugin for Eclipse (which also provides a standalone version for convenience) which provides Nim support providing syntax-highlighting, outline, comment/uncomment (ctrl+/), select/deselect scope (Shift+Alt+Up/Down), auto-indent, mark occurrences, user templates, multiple cursors (Ctrl+K or Ctrl+Alt+mouse select) and indent guides.

Scite

Recent versions of Scite have out-of-the-box support for Nim. For older versions:
http://sourceforge.net/p/scintilla/scite/ci/default/tree/src/nimrod.properties?format=raw

To enable nim, edit the global config file: (from http://forum.nim-lang.org/t/312)

• remove nimrod from the list in imports.exclude=(...lots of stuff)
• edit source.files to make scintilla recognise .nim

Aporia

Aporia is a Nim IDE written in Nim.

https://github.com/nim-lang/Aporia/

Visual Studio

https://github.com/Gravityzwell/NimStudio

LightTable

https://github.com/zah/nim.lt/

Atom

• https://github.com/russpowers/nim-atom

  • Autocomplete
  • Linting/Error Checking (on file save or on-the-fly)
  • Jump-to-definition
  • Syntax highlighting

• https://github.com/zah/nim.atom/

Gedit/Other GtkSourceView editors

There is a .lang file for gedit here

Geany

There is a pull request to provide Nim support in Geany.

Ctags

Basic ~/.ctags rules for Nim code (Feel free to improve and contribute) Don't use this if possible, Nim idetools provides better results.

--langdef=nim
--langmap=nim:.nim
--regex-nim=/(\w+)\*?\s*=\s*object/\1/t,class/
--regex-nim=/(\w+)\*?\s*=\s*enum/\1/t,enum/
--regex-nim=/(\w+)\*?\s*=\s*tuple/\1/t,tuple/
--regex-nim=/(\w+)\*?\s*=\s*range/\1/t,subrange/
--regex-nim=/(\w+)\*?\s*=\s*proc/\1/t,proctype/
--regex-nim=/proc\s+(\w+)/\1/f,procedure/
--regex-nim=/method\s+(\w+)/\1/f,method/
--regex-nim=/proc\s+`([^`]+)`/\1/o,operator/
--regex-nim=/template\s+(\w+)/\1/t,template/
--regex-nim=/macro\s+(\w+)/\1/m,macro/

Alternatively, there's a native tags generator specifically for Nim: https://bitbucket.org/nimcontrib/ntags

jEdit

https://github.com/exhu/nimrod-misc/tree/master/jedit

Sublime

• https://github.com/Varriount/NimLime

  NimLime is a Sublime Text plugin that supports:

  • Syntax highlighting
  • Go to definition
  • Error checking and highlighting through the compiler
  • Completion suggestions though the compiler
  • Babel package manager interaction

• https://github.com/leonardoce/nimrod-sublime

Kate

Syntax highlighting:

https://github.com/PhilipWitte/NimKate

TextMate

Available from the bundle installer in preferences (repository).

QtCreator

https://github.com/filcuc/NimQtCreatorPlugin

QtCreator plugin that supports:

• Syntax highlighting
• Indentation
• Project management (build/run configuration)
• Debug with gdb

KDevelop

https://github.com/xyz32/KDevelop-template

Demo: https://vimeo.com/135918228

KDevelop templates for Nim project and Nim file:

• Project management (build/run configuration)
• New nim file
• Debug with gdb (You will need to uncomment the debug flag in the nim.cfg file)
• Syntax Highlighting (Needs Kate syntax highlighting).

Make sure you have both Nim and Nimble installed.

Howl

http://howl.io

Recent versions of Howl have built-in Nim syntax highlighting.

Micro

https://github.com/zyedidia/micro

Has built-in Nim syntax highlighting

Notepad++

Support Nim syntax highlighting and code folding via a plugin written entirely in Nim!.

• Download available here
• Source code available here