Free to use · macOS, Windows and Linux

A calm, fast code editor.

The screen belongs to your code. Everything an IDE should do is a keystroke away, and out of sight until then.

Fast

Everything, one keystroke away.

Native, drawn on the GPU. ⌘P lists a 42,000-file project in a quarter of a second; ⌘K changes any setting or runs any command.

AI on call

AI when you ask. Nowhere when you don't.

Describe a change in your own words: it's written into your code as a diff to keep or undo. Off until you turn it on.

Everywhere

On the Mac, Windows and Linux.

The same quiet window on each, with six themes and the keys your hands already know.

Download Null

Most editors fill the screen with everything at once: panels, badges, notifications, pop-ups. Null starts with nothing, and gives the screen back to your code.

One change, start to finish

Without leaving the keyboard.

WriteThe bars fade while you type, and come back when you stop.
Find⌘P to any file, @ for any symbol.
RunThe terminal is one key away; tests run from the code.
AskAI is off until you want it. Then ⌘I, in plain words.
KeepEvery change is shown in place: ⇥ keeps it, Esc undoes it.
CommitThe lines you mean, with a message drafted for you.

Everything an IDE should do

Out of sight until you need it.

Code intelligence for Rust, Python, TypeScript, Go, C, C++, Swift and more: the language server is found, or installed for you in one click.

The Git panel with a commit message drafted

Git in one panel

Commit whole files or just the lines you mean. History with its graph, branches, conflicts resolved in place, pull requests.

Terminal and tests

Tests found and run from the code; errors in the terminal join the problems list.

Stopped at a breakpoint, values shown in the code

A debugger in the code

Breakpoints, and values shown where they are, not in a pane.

Markdown with its live preview and a diagram

Markdown, previewed

Tables, formulas and diagrams, live beside the text.

Bigger tasks, in the background

Claude Code or Codex does the work; you review every change, file by file.

Several folders, one window next release

Each with its own files, git and language servers.

Six themes

True black by default, with an amber caret; dark and light ones too. Bars that fade while you type.

Keys you already know

VS Code, JetBrains, Sublime Text, Zed, or Vim.

Vim, properly

Modes, motions, text objects, registers, macros.

Never lose work

Unsaved changes survive a crash, every save is kept for a month, and files changed on disk are never silently written over.

Private

No telemetry, no accounts. Nothing leaves your computer unless you ask it to.

0files listed in a quarter of a second

0languages highlighted, more coloured

0themes, and six sets of keys

0platforms, one quiet window

AI your way

A tool, not a co-pilot.

Off until you turn it on. When it's on, it never changes your code without showing you the change.

Claude Code your Claude planCodex your ChatGPT planClaude APIOpenAIGemini free tierMistral free tierGroq free tierOpenRouterNVIDIAOllama on your computer

⌘I

Change code where it is

Describe a change; it's written in as a diff to keep with ⇥ or undo with Esc.

✦

Bigger tasks, reviewed

Hand a task to Claude Code or Codex. Its changes come back as a list to review, change by change.

○

Or none at all

With AI off there's no button, no badge, no dot. Just your code.

The film

Null in a minute and three quarters.

Download

Free, and yours.

The latest version, built from the source on GitHub by its public release workflow.

macOS11 or later · Intel and Apple siliconOpen the .dmg and drag Null to Applications.Download .dmg Windows10 and 11 · x86-64Run the installer: no administrator needed. It adds Null to the Start menu, null to your terminals and "Open with Null" to folders.Download installer or the .zip, to run from anywhere Linuxx86-64 · X11 or WaylandUbuntu and Debian: sudo apt install ./null-linux-amd64.deb, and null works in every terminal.Download .deb or the .tar.gz for other distributions (./install.sh)

Every version and its notes: releases · changelog · source · code signing policy · privacy