Open source Writing and Editors apps for Mac

21 free, open source Writing and Editors apps for macOS, most popular first. CodeEdit, CotEditor, CopilotForXcode and more, each installed in one click with OpenDMG.

Clayshell App StoreAlso by Arvind: an SSH server manager for Mac and iPhone.
CodeEditOpen-source code editor
CotEditorLightweight Plain-Text Editor for macOS
CopilotForXcodeThe first GitHub Copilot, Codeium and ChatGPT Xcode Source Editor Extension
MarkEditA simple and efficient Markdown editor focused on pure writing experience
PineA modern MacOS markdown editor
Clearly MarkdownMarkdown editor with instant preview, syntax highlighting, and PDF export
ChimeAn editor for macOS
Neon Vision EditorLightweight text editor with automatic syntax highlighting
NimbleLightweight local code editor
EdmundLightweight Markdown editor with live preview
LiteEditLightweight code editor for opening, browsing, and quick editing
MojitoType emoji shortcodes like `:tada:` to insert 🎉 in any text field
ImarkMarkdown reader with live reload, Quick Look preview, and inline comments saved to the…
DownrightNative Markdown editor and reader with Quick Look, exact source editing, themes, math…
FstFast, minimal single-file text editor with syntax highlighting and theme switching
FINAL|FINALLong-form writing editor with outlining, citations, versioning, and focus tools
CommitEditA native macOS commit message editor
MrEditorUltra-fast viewer and editor for 10 GB+ text files with instant open, full-text search…
LiteMDLightweight Markdown editor with live preview, 20 themes, and built-in format conversion
MarkoutModern Markdown editor with offline syntax, math, and diagram engines — spiritual…
SSMVLightweight Markdown viewer with an outline for jumping between sections and one-click…