v0.18.2 · macOS, Linux and Windows

The 18 MB code editor, drawn on the GPU.

Mayoi is a native editor written in Go, for developers who want their editor to open before they finish blinking. Git, Vim mode, a Ghostty terminal and Remote SSH are built in. No webview, no Electron.

Download Mayoi Homebrew, Linux and source →

Free and open source under the MIT license. Signed and notarized on macOS.

Mayoi with project tabs on a rail, the Git view and commit graph at the side, and Claude Code running in two terminal tabs side by side — Projects on the rail, Git at the side, Claude Code in two terminal tabs

measured, not claimed

Opens a 100,000-line file in about 20 ms.

Mayoi paints its own UI with MyGo, straight to the GPU. There's no browser engine to start and no DOM to diff, so the whole app ships in one small binary and a keystroke costs less than a frame.

Figures from Mayoi's own tests on an M-series Mac. See ARCHITECTURE.md.

Mayoi performance figures
What it does	Time
Open a 100,000-line file	~20 ms
Scroll or type, per frame	< 2 ms
Scroll or type with find open	~3 ms
Re-highlight a 6,000-line file after a key	< 1 ms
Quick open across 100,000 paths	~1.5 ms
Diff a few edits in a 100,000-line file	~0.25 ms
Packaged app size	~18 MB

Source control view with staged and unstaged files, a commit list, and a side-by-side diff with changed words tinted

Git that shows you the whole change.

Stage, commit, amend, undo, pull and push from one view. Every changed file sits in a single diff tab, folded around the edits, inline or side by side.

Click a gutter mark to peek the line at HEAD, then revert or stage it
A commit graph with branches, tags and merges
Blame for the line your caret rests on
Commit messages written by AI, with secrets left out of the diff

Several lines of Go selected in Vim visual mode, with the mode shown in the status bar

A Vim mode that knows about `.` and macros.

Normal, insert and visual modes with the parts you actually reach for, not a list of keybindings pretending to be Vim.

Motions, operators, text objects and counts
Registers, macros, marks and search
:s, :g and :normal on the command line

A terminal running in an editor column beside Go source

Ghostty's terminal, wherever you want it.

The emulator is libghostty-vt, so colors, Unicode and full-screen programs behave. Put it in the bottom panel, at a side of the window, or in a tab next to your code.

⌃` toggles the panel, ⌃⇧` opens a new terminal
Rename a terminal and it keeps the name
Colors follow the editor's theme

A Mayoi window with a folder open on an SSH host, its Explorer and terminal running remotely

Open a folder on another machine. Install nothing there.

Remote SSH uses the ssh already on your system. The Explorer, search, Git and terminals run on the host, and its ports forward to this machine.

Reads your ~/.ssh/config, with a button to edit it
Reconnects to a host by itself
mayoi --remote host:/path from any shell

And the things you'd expect.

The parts of an editor you use a hundred times a day, each with the shortcut you already know.

The command palette listing commands by name with their shortcuts

Quick open: Fuzzy file search, :42 for a line, @ for a symbol, > for commands; ⌘P
Find in files: Case, whole-word and regex, with a preview of each replacement; ⇧⌘F
Previews: Markdown, SVG and Mermaid live beside the source, with LaTeX math; ⇧⌘V
Columns: Split the editor and drag tabs between columns; ⌘\
Project tabs: Every folder in one window, on a rail, or a window per folder; ⌃⌘1…9
Open recent: Folders and SSH hosts, and every window reopened as you left it; ⌃R
Settings: JSON applied as you save, VS Code keybindings, and a folder's own .mayoi/settings.json; ⌘,
Settings sync: Sign in with GitHub or Google and your setup follows you

Your shell can drive it.

The mayoi command opens files at a line, compares two files, waits for a file to close, and runs any command by the name keybindings.json gives it.

Homebrew installs it with the app. With the DMG, choose File → Install 'mayoi' Command.

# open this folder
$ mayoi .
# jump to a line and column
$ mayoi -g main.go:42:7
# compare two files
$ mayoi -d old.txt new.txt
# use it for commit messages
$ git config core.editor "mayoi -w"
# run commands in the open window
$ mayoi run view.terminal git.pull

Themes with a little character.

Pick one and the window beside it changes, in the colors Mayoi itself paints. The Matrix and Claude draw the whole window in the code's font.

theme.go mayoi

Explorer

sidebar.go
sticky.go
symbols.go
tabs.go
termfind.go
termstatus.go
theme.go
themepicker.go
titlebar_linux.go
titlebar_other.go

theme.gothemepicker.go

1346// paletteFor returns the palette of a theme of the settings, in a window1347// that is dark or not.1348func paletteFor(theme string, dark bool) *palette {1349	switch {1350	case theme == themeMatrix:1351		return matrixPal1352	case theme == themeClaude && dark:1353		return claudeDarkPal1354	case theme == themeClaude:1355		return claudeLightPal1356	case theme == themeQoder && dark:1357		return qoderDarkPal

Terminal

mayoi main ❯ git log --oneline -4
ca221d4 (HEAD -> main, tag: v0.18.2) v0.18.2
4658130 Highlight ==text==, bold and strikes in the Markdown editor
000c1fc Wrap Markdown selections in typed = * _ ~ and $ marks
e3b7021 Highlight ==text== and <mark> in the Markdown preview
mayoi main ❯

mainmayoiLn 1348, Col 6 · Tabs · UTF-8 · LF · Go

Mayoi · dark

Install Mayoi.

It checks for updates by itself. Pick your system.

macOS 13 or later, Apple Silicon or Intel. With Homebrew:

brew tap --custom-remote sorrycc/mayoi https://github.com/sorrycc/Mayoi.git
brew trust sorrycc/mayoi
brew install --cask mayoi

Or download the DMG from Releases and drag Mayoi to Applications.

Needs GTK 3, as on Ubuntu 22.04 or later. Installs to ~/.local with an app menu entry.

curl -fsSL https://github.com/sorrycc/Mayoi/releases/latest/download/install.sh | sh

Download the installer for your architecture. File → Install 'mayoi' Command adds mayoi.cmd to your PATH.

Get the Windows installer →

Go 1.27 or later; Linux also needs GTK 3.

git clone https://github.com/sorrycc/Mayoi.git && cd Mayoi
go run ./cmd/mayoi ~/some/project

Lose less time to your editor.

迷い means hesitation. Mayoi is meant to have none.

Download Mayoi Star on GitHub →