sorrycc/Mayoi

迷い — a small, fast code editor written in Go. It draws a native UI on the GPU with MyGo, with no webview and no Electron, and the packaged app is about 18 MB.

• Editor: tabs, Chroma syntax highlighting, indent guides, sticky scroll, breadcrumbs and word wrap
• Smart editing: auto-indent, auto-closing brackets and quotes, line commands, and per-tab undo
• Vim mode: normal, insert and visual modes, with motions, operators, text objects, counts and .
• Columns: split the editor side by side and drag tabs between columns
• Explorer: a live file tree that follows the disk and dims Git-ignored files
• Quick open: fuzzy file search, go to line (:42), go to symbol (@) and a command palette (>, ⇧⌘P)
• Find and replace: case, whole-word and regex matching, searched in the background in large files
• Search: find and replace across the folder's files (⇧⌘F, ⇧⌘H), with files to include and exclude, and a preview of each replacement
• Git: a source control view to stage, commit, amend, undo, pull and push, every change in one diff, folded around the changes, inline or side by side, a graph of the commits with their branches and tags, each with its own diff, gutter marks that revert or stage a change, branches and blame
• Terminal: Ghostty's emulator (libghostty-vt), in the bottom panel or in a tab
• Remote SSH: open a folder on another machine with the system's ssh, nothing installed there: the Explorer, search, Git and terminals run on the host, and its ports forward to this machine
• Image viewer: PNG, JPEG, GIF, WebP and BMP
• Previews: a live preview of Markdown and SVG beside the source (⇧⌘V)
• Windows: a window per folder or every folder in one window as project tabs, a welcome page with the recent folders and hosts, Open Recent (⌃R), and a mayoi shell command
• Themes: light and dark, The Matrix with digital rain, and Claude and Qoder, each in light and dark
• Auto save, and every window reopened as you left it, with its columns, tabs and carets
• Settings: JSON files applied as you save them, with the code's and the terminal's fonts, weight, ligatures and line height, and keyboard shortcuts in VS Code's format (see docs/SETTINGS.md)

See docs/FEATURES.md for the details, docs/ARCHITECTURE.md for a tour of the source and how fast it runs, and CONTRIBUTING.md to build, test and release Mayoi.

Columns: split the editor and drag tabs between columns	Vim mode: motions, operators, text objects and visual mode
Peek a change: click a gutter mark to see the lines at HEAD, then revert or stage them	Side-by-side diff: every change in one tab, with changed words tinted
Commit graph: branches, tags and merges, and each commit's changes in a tab	Markdown preview: live beside the source
Terminal: Ghostty's emulator in the panel or, here, in a tab	Command palette: every command by name, with its shortcut
Search in files: as you type, with each match in context	Project tabs: every folder in one window, on a rail
Remote SSH: the Explorer, Git, search and terminals on the host, and its ports here	The Matrix: one of the themes, with the whole window in the code's font

• macOS 13 or later
• Go 1.27 or later

Mayoi also builds for Linux and Windows.

go run ./cmd/mayoi ~/some/project    # open a folder or a file
go tool mygo build                   # build build/darwin-arm64/Mayoi.app and a .dmg

To open folders from a shell, choose File → Install 'mayoi' Command, then run mayoi . or mayoi <file>.

MIT