Does this work with Apple Mail and Outlook?

Yes. Because the rewrite happens on your clipboard, it works with any mail app — Apple Mail, Outlook, Spark, or Gmail in a browser — without changing your setup.

Can I save emails I send often?

Yes. Save polished drafts as snippets to paste instantly later, or pin them so they stay available past the rolling 150-clip history. Pinned clips are unlimited.

ClipHistory is a one-time $19.99 purchase with a 12-month license and no auto-renewal. The Rewrite transform uses your own AI provider key, billed by that provider.

Will my email content be uploaded to a cloud?

No. ClipHistory has no cloud and no account. Only the text you run through Rewrite is sent, going directly to the AI provider you chose under your own key.

An App to Rewrite Emails on Mac

You wrote the email fast, and it shows — a clunky sentence, a phrase that reads sharper than you meant, a paragraph that wanders. You don't want a whole email client built around AI; you just want to clean up the draft you already wrote, in whatever app you wrote it in. A clipboard manager with a rewrite transform does exactly that, and it works in Mail, Outlook on the web, Spark, or any other app.

The flow

ClipHistory keeps your recent clips and can run AI transforms on any of them.

Write your email draft anywhere.
Select all of it and copy.
Press Cmd+Shift+V to open ClipHistory.
Run the Rewrite transform.
Paste the polished version back over your draft.

The Rewrite transform fixes grammar, tightens wordy sentences, and smooths awkward phrasing. Because it works on the clipboard, it's the same action no matter which mail app you use.

Why clipboard-based beats a dedicated AI email client

Switching email clients is a big move — you'd be changing where all your mail lives just to get one feature. A clipboard tool adds the rewrite capability without touching your setup:

Keep your email app. Apple Mail, Outlook, Spark, Gmail in a browser — all work, because the rewrite happens on the clipboard.
Works beyond email too. The same shortcut polishes Slack messages, docs, and anything else you write.
No lock-in. You're not betting your inbox on one vendor's AI roadmap.

Choose the model and the tone

Rewrite runs through the provider you configure — Anthropic, OpenAI, DeepSeek, Google, or a custom endpoint — with your own API key. Use a stronger model when the email matters (a client proposal, a sensitive reply) and a cheaper one for quick internal notes. You pay the provider directly at their rate, with no subscription markup, and you can switch models whenever you want.

Save the emails you send over and over

A lot of email is repetitive: intros, scheduling replies, polite declines, standard follow-ups. Once you've got a version you like, save it as a snippet and paste it instantly next time — no AI call needed, no cost per use. For the handful you reach for most, pin them; pinned clips are unlimited and don't roll off the 150-clip history.

This is where the real time savings live: rewrite once, reuse forever.

Build a board for a campaign or project

If you're running outreach or a multi-step email sequence, group the related drafts and snippets into a board so they're organized in one place instead of scattered through your history. Boards keep a project's pieces together.

What stays on your Mac

ClipHistory has no cloud and no account. Your drafts, history, snippets, and boards stay local. The only thing that leaves is the email text you run through Rewrite, sent directly to your chosen provider under your own key. You decide which drafts to send and which to keep entirely local.

For confidential email — HR matters, legal, unannounced news — that control matters.

A two-pass approach for important email

For an email that matters, two transforms beat one. First run Rewrite to fix grammar and flow. Read the result, adjust anything that drifted from your intent, copy it again, and run Rewrite once more for a final polish. Two quick passes catch more than one, and you stay in control of the meaning between them.

If the email also needs to go out in another language, chain it: Rewrite to polish, then Translate into the target language. Two shortcuts take a rough draft to a clean, translated message.

Where this saves the most time

The biggest gains aren't the one-off emails — they're the repetitive ones:

Follow-ups. "Just checking in" notes you send weekly. Rewrite one good version, save it as a snippet.
Scheduling. Replies proposing or confirming times. Keep a polished template and tweak the specifics.
Declines and intros. Polite no's and warm introductions follow patterns. Save the patterns.

Pair the Rewrite transform (for fresh drafts) with snippets (for the repeats) and a board (to keep a campaign's pieces together), and most of your routine email writing collapses into a few keystrokes.

A realistic note

Rewrite is excellent at cleaning grammar and improving flow, but read the result before you send. Confirm it kept your meaning and didn't soften (or sharpen) the tone past what you intended. Treat it as a fast editor, not an autopilot.

Summary

You don't need to switch email apps to write better email on a Mac. Draft it, copy it, Cmd+Shift+V, Rewrite, paste it back — in any mail app, with the model you choose, your key, and your text staying local except the single transform you send. Save the ones you reuse as snippets and you'll write your common emails in seconds.

Ready to put AI to work on your clipboard? Get ClipHistory for macOS — $19.99 (one-time payment, 12-month license, no auto-renewal). Signed and notarized by Apple, runs on Apple Silicon and Intel, macOS 12+.