Early accessOn-device autocorrect for Mac

Type what you mean. itsTypo is on-device autocorrect for Mac.

Type at full speed. itsTypo fixes typos and shorthand the moment you finish each word, offers the rest when it sees where you’re going — and stays quiet when it isn’t sure. Everything runs on your Mac.

or just your email

Free during early access. No spam — one email when your invite is ready.

Demo

See it in a minute.

Fix on every word boundary, tab to finish, ⌃⌥R to rewrite, ⌃⌥D to dictate.

Playground

Go on.
Type badly.

A small preview of how itsTypo resolves each word as you finish it — and when it decides to stay quiet. The Mac app goes further, learning from your own writing with a language model that runs on your Mac.

Maya
Are we still on for Friday?
Connecting…

Or try one of these

Undo teaches it: press ⌫ right after a fix to restore what you typed — it won’t touch that word again. esc hides a suggestion, → takes all of it.

What it does

Type at full speed.
It keeps up.

hlloo→helloslip
tgthr→togethershorthand
thnks→thanksshorthand
plz→pleasephonetic

Fixes as you go

Typos and shorthand resolve the moment you finish each word — no popups, no squiggles to chase.

The launch is on Friday at 10am.tab

Tab to finish

When it sees where you're going, it offers the rest. Tab takes it — one word at a time.

itover → it over

to gether → together

Spaces, added and removed

Runs words apart, joins broken ones, and catches the slips a spellchecker misses.

⌃⌥R

Rewrite the whole field

Messy draft? Press ⌃⌥R and the field is cleaned up at once — casing, spacing, every slip.

Dictation, on your Mac

Rather talk? ⌃⌥D (or hold fn) and speak. Parakeet, Whisper, Qwen3-ASR and more — transcribed locally.

2,418

keys saved this week

tgthr

your newest shorthand

0

fixes you had to undo twice

Learns how you write

Undo a fix once and it never repeats it. It suggests shorthand for words you type in full, and counts every keystroke you save.

The one rule

Not sure?
It stays quiet.

A missed fix costs you nothing. A wrong one can reach a recipient. So itsTypo is tuned on its false-correction rate, not on accuracy — and when two answers are close, it shows neither.

You typed

need more tme

time53%
the39%
as typed8%
Held back. Best guess is under the 60% bar — your word stays exactly as typed.

Works wherever you type — and nowhere it shouldn’t. Never in password fields or search boxes.

Never leaves your Mac.

No cloud engines. No account needed to use the app. Nothing you type is uploaded, logged remotely, or used to train anything.

01

On-device model

Qwen3.5 0.8B runs on your Mac through llama.cpp. About 0.8 GB, and fine on an 8 GB machine.

02

Works offline

After the one-time model download, nothing needs the network — not fixes, not completion, not dictation.

03

Local history

What it learns from your writing stays encrypted in your Library folder. Turn it off or wipe it any time.

04

Open source

MIT-licensed, so anyone can check exactly what it does with a keystroke. The code goes public with the first release.

Requirements

Small model.
Any Apple silicon Mac.

macOS
14 Sonoma or later
Memory
8 GB for the default model · 16 GB+ unlocks larger ones
Disk
About 1 GB with the default model
Permission
Accessibility — to read the focused field and insert text
Price
Free to start · Pro and Ultra plans later

FAQ

Is it free?+

Yes, to start. Autocorrect, shorthand, word prediction and dictation with the smaller speech models are free. Pro and Ultra plans will add larger models and sentence completion later — and every plan stays 100% on-device. The source is MIT-licensed either way.

How is this different from macOS autocorrect?+

macOS checks words against a dictionary. itsTypo also resolves deliberate shorthand (tgthr, thnks), fixes missing and extra spaces, uses the sentence around the word, offers completions you take with Tab — and holds back whenever two answers are close.

Does anything I type leave my Mac?+

No. Correction, completion and dictation run on-device. The app has no cloud engines. Signing up here only stores your name and email for the waitlist.

Why is there a waitlist?+

An app that types into every other app needs care per app. We invite people in waves, fix what each wave finds, and widen the door. Sharing your referral link moves you up.

Which apps does it work in?+

Anything with a standard text field — mail, chat, notes, docs, browsers, editors. Per-app rules handle the quirky ones, and secure fields are always excluded.

What languages does it support?+

English first. The lexicon format is language-agnostic, and more languages are on the roadmap.

Is it open source?+

Yes — itsTypo is MIT-licensed. The repository opens to the public with the first release; early access gets you signed, notarized builds with automatic updates.

tsTypoitsTypo

Free to start · open source · macOS 14+ · early access in waves

or just your email

Free during early access. No spam — one email when your invite is ready.