Acme
Acme: A focused Unix-oriented editor for programmers who prefer text, commands, and composable windows. Ranked #43 of 44 in Code Editors by our editors (5.2/10); pricing: Open source; best for minimal Unix-oriented text editing.
At a glance
- Editor score5.2 / 10
- PricingOpen source
- Best forMinimal Unix-oriented text editing
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Column-based windows support flexible text organization.
- Shell commands can run directly from selected text.
- State dump and restore preserves editor sessions.
Where it doesn't
- No documented extension system or language tooling.
- No debugger or remote-development support.
- Runs on Linux and macOS only.
Our verdict on Acme
Acme is an interactive text editor and window system for programmers working on Unix-like operating systems. Distributed as part of Plan 9 from User Space, it runs on Linux and macOS and combines editable text windows with keyboard- and mouse-driven interaction. Its core command set covers cut, paste, search, undo, redo, loading, and saving, while autoindent and configurable tab stops support everyday text editing. Column-based layouts provide the main way to organize multiple windows.
The editor’s strongest distinction is its connection to shell commands and external programs. Users can execute shell commands from selected text, while served files and 9P expose window data for external program control. This makes Acme a fit for programmers who want editing, command execution, and window management to work together through text-oriented workflows. State dump and restore also supports returning to a previous editor arrangement. Its open-source model suits users who prefer a freely available desktop editor rather than a separately priced commercial product.
Acme is intentionally focused on core editing and Unix-style composition rather than a broad development environment. The published product details do not include an extension system, language tooling, debugger, or remote-development support, so programmers seeking those capabilities should choose an editor that provides them. It is also limited to Linux and macOS, making it unsuitable for workflows that require another desktop platform. Choose Acme for programmable text interaction, column layouts, shell integration, and external control; choose an alternative when integrated language features, debugging, extensions, or remote development are central requirements.
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Acme pricing
Acme fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Supported platforms | Linux, macOS |
| Extension support | Not verified |
| Built-in debugger | Not verified |
| Remote development | Not verified |
| Language server support | Not verified |
| Editor type | Desktop |
| Deployment | Desktop |
| Platforms | Linux, macOS |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Open source |
| Website | 9fans.github.io |
| Facts checked | 20 Sep 2026 |
Alternatives to Acme
- Visual Studio CodeA free, open-source editor with editing, debugging, Git, terminal, and extension support.9.4
- ZedA fast, open-source editor with strong native tooling and flexible AI integrations.9.1
- VSCodiumA familiar desktop editor for VS Code users who want telemetry-disabled binaries.8.9
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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