AI writing assistant for Mac

An AI writing assistant that follows you into every app.

Most writing tools live in one place. ElastoType lives everywhere you type. Select text anywhere on your Mac, pick an action, and the better version replaces it on the spot — no copy-paste, no chat tab.

macOS 13+ · Apple Silicon & Intel · No account needed

Writing help, wherever the writing happens

✉️

Email

Turn a rushed draft into a clear, polite message — right inside Mail or your webmail.

💬

Slack & chat

Reply in your tone, soften a blunt line, or translate — without leaving the composer.

📝

Docs & notes

Tighten a paragraph, fix grammar, or expand a bullet in Notion, Docs, or your notes app.

💻

Code & comments

Clean up a commit message, rewrite a doc comment, or explain a snippet in your editor.

🌍

Translation

Translate a selection into natural, tone-matched language and replace it in place.

Your own prompts

Save the instructions you repeat as one-click chips and run them by name anywhere.

How it works

1Select your text in any app — a draft email, a Slack reply, a paragraph of notes.
2Pick an action from the popup — fix, rewrite, translate, or a prompt you saved.
3It replaces in place. The improved text lands exactly where you were typing.

Why in place beats a chat tab

A chatbot makes you the courier: copy your text, switch apps, paste, re-explain what you want, wait, copy the answer, switch back, paste again, clean up the formatting. Every single time.

ElastoType deletes that round trip. The AI comes to your cursor instead of pulling you to a tab — and because it can see the text you selected and the window around it, you rarely have to explain the situation at all.

Questions

What is the best AI writing assistant for Mac?

The right one is whichever works where you already write. ElastoType is system-wide — it runs in any app you can select text in, not just a browser or a single editor, and writes its answer back in place.

Does it need an account?

No account is needed to use it. AI actions call a hosted model (or your own key on Lifetime), so they need a connection; everything else lives on your Mac.

Is ElastoType free?

Yes — free to download and use with a generous monthly allowance. Pro is $39/yr for unlimited hosted AI; Lifetime is a one-time $25 to bring your own API key.

What can it actually do?

Fix spelling and grammar, rewrite for tone or length, translate, summarize, draft replies, and run any custom prompt you save — all in place.

Put a writing assistant in every app.

Free, no account. Select some text and see what happens.

Download for macOS