Tab.Noted app icon

Tab.Noted

The source code editor your Mac deserves.

A native Mac text editor for developers, security professionals, and power users. 50+ languages. Multi-tab. Fully offline. One purchase — no subscription, no account, no telemetry.

Coming soon to the Mac App Store

macOS 13 Ventura or later · Apple Silicon & Intel · One-time purchase

Tab.Noted app screenshot
Syntax Highlighting

50+ languages, out of the box.

Tab.Noted detects your language from the file extension and applies full syntax highlighting — no setup, no plugins. From Swift and Python to YARA rules, Suricata signatures, HCL, Protobuf, and Jinja2. Seven built-in themes. A custom theme builder for the rest.

Web · Systems · JVM & .NET · Scripting · Shell & Build · Data & Config · Security · and more

Tab Management

Stay in the file. Stay in the flow.

Tabs that resize fluidly as you open more. Drag to reorder. Pin the ones you always need — pinned tabs survive app restarts even without being saved. Quick Open (⌘P) gets you anywhere without touching the mouse. Your workspace comes back exactly as you left it.

Tab Groups (Workspaces)

Every project gets its own workspace.

Save named sets of open tabs and switch between them instantly — one group for each project, investigation, or context. Each group remembers and restores its own tabs, so jumping between work never means rebuilding your setup. New Tab Group is one shortcut away (⌘⌥T).

Search

Find it. Fix it. Move on.

Regex support. Whole-word matching. Case sensitivity. Select all occurrences at once. Search across every open tab with ⌘⇧F, or sweep an entire folder from disk. Replace All is fully undoable.

Power Editing

The tools you actually reach for.

Macro recording and playback. Snippet expansion. Clipboard history — paste anything you copied, not just the last thing. Column selection. Move lines. Sort, deduplicate, and trim. Case conversion. Toggle comments for every language. All built in, nothing to install.

Built-in Panels

More than a text box.

Minimap for long files. File browser for your project tree. Integrated terminal. Hex editor for binary inspection. Markdown preview. Side-by-side file diff. JSON tree viewer. Document statistics. All included — no extensions required.

Privacy & Ownership

Nothing leaves your machine.

No account to create. No analytics running in the background. No subscription expiring. Tab.Noted doesn't know who you are, and it doesn't need to. Your files stay on your device. The app works completely offline. Pay once — it's yours.

Universal Binary — native Apple Silicon and Intel
macOS 13 Ventura or later
Auto-save — 1.5 seconds after you stop typing
Crash recovery — unsaved content survives unexpected quits
Custom syntax theme builder
Spell check — code-aware, strings and comments only
Print support
Zen mode — full distraction-free editing
Fully sandboxed (Mac App Store security model)
Zero third-party dependencies — 100% Apple frameworks
Coming in Future Updates

Tab.Noted keeps getting better.

Already planned for upcoming releases:

Frequently asked questions

What macOS version do I need?

macOS 13 Ventura or later. Tab.Noted runs natively on both Apple Silicon (M1/M2/M3/M4) and Intel Macs.

Does Tab.Noted work offline?

Yes, entirely. No internet connection is ever required. The one exception is Markdown preview, which loads syntax highlighting from a CDN on first render — it works offline but renders plain without internet.

What file types does Tab.Noted open?

Any plain text file. Tab.Noted recognizes 50+ languages by file extension and applies syntax highlighting automatically. It can also open any file in the hex editor.

My tabs didn't restore after I quit. Why?

Only file-backed tabs (tabs with saved files) restore on relaunch. Untitled tabs that were never saved cannot be restored. When you quit with unsaved untitled tabs, Tab.Noted will prompt you to save them before closing.

How do I change the syntax theme?

Settings (⌘,) → Appearance → choose a theme from the Syntax Theme picker. You can set different themes for light and dark mode.

How do I change the font?

Settings (⌘,) → Font — choose the font family and size.

How do I open a whole project folder?

Enable the File Browser (⌘⇧B or View → File Browser), then click the folder icon to open any folder as a tree. Click any file in the tree to open it in a tab.

How do I compare two files?

Open both files in separate tabs, then use Tools → Compare Tabs (⌘⌥⇧D) to see a side-by-side diff.

How do I search across all open files?

Press ⌘⇧F or Search → Search in All Files.

How do I record a macro?

Press ⌘⇧M to start recording, perform your keystrokes, then press ⌘⇧M again to stop. Play it back with ⌘⇧P.

Can I use Tab.Noted to edit binary files?

Yes — use Tools → Hex View to open any file in the hex editor and inspect its raw bytes.

How do I convert line endings?

Use the Encoding menu → Convert to Windows (CRLF), Unix (LF), or Classic Mac (CR).

How do I add custom snippets?

Tools → Manage Snippets → create a snippet with a trigger word. Type the trigger in the editor and press Tab to expand it.

How do I make Tab.Noted always stay on top of other windows?

View → Always on Top.

Still have questions? Read the full documentation →

Get Tab.Noted

A one-time purchase, sold through the Mac App Store. No subscription, no account required.

Coming soon to the Mac App Store