Fix any email before you hit Send.

An agent that reads your draft, makes a plan and rewrites it in your voice. You see every change and decide what goes out.

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New message

ToDana Okafor
SubjectProduct designer role

Hi Dana, I'm so sorry to bother you again, but I just wanted to check in and see if there were any updates on the product designer role. I totally understand if you are busy! I interviewed last Tuesday and I'm still really excited about it. Thanks so much in advance!! Sam

Four steps, in about four seconds

The same loop runs on every email: here is what it found on the one above.

  1. 1

    Reads the draft

    Who it's for, what you're asking, and how it comes across.

    On the email above: Follow-up to a hiring manager. Apologizes twice before the question.

  2. 2

    Makes a plan

    What to change and what to keep, decided before it writes a word.

    On the email above: Lead with the role, keep the question and the enthusiasm, cut to about 30 words.

  3. 3

    Rewrites in your voice

    Your sentence length, your words, your sign-off.

    On the email above: Work Email, your sentence length and sign-off.

  4. 4

    Checks its work

    Against your draft, so nothing you meant gets lost.

    On the email above: The question survived. Nothing you said was dropped.

Try it on your own email

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Situation
Original
Work Email tone

Your rewrite will appear here

Length

Inside Gmail, next to Send

The free Chrome extension adds a Rewrite button to Gmail, so you can fix a draft without leaving your inbox. It works in Outlook and LinkedIn too.

New message

To Priya Shah
Can we move Thursday?

hey so sorry, something came up thursday and i cant make it anymore. could we maybe do friday instead if thats ok with you

SendRewriteAdded by ToneSwap

It gets more like you every week

Add a few emails you have written. ToneSwap keeps a profile of how you write, and every rewrite you keep teaches it more.

Voice profile

Example, from 6 emails

Sentence length
14 words on average
Formality
Relaxed, still professional
Openings
Gets to the point in the first line
Sign-off
Thanks, Sam
Never says
circle back, synergy, per my last email

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Questions

What does the agent actually do?
It reads your draft to work out who it is for and what you are asking, makes a plan for what to change and what to keep, rewrites it in your voice, and checks the result against your draft. You see every change and decide what goes out.
How does it learn my voice?
You add a few emails you have written. ToneSwap reads your sentence length, your vocabulary and how you open and close, and every rewrite you keep teaches it more.
How is this different from ChatGPT?
ChatGPT writes the same way for everyone. ToneSwap builds a profile from your own writing and applies it to every rewrite, and it works inside Gmail with one click.
Is it free?
Yes. Every new account gets 14 days of Pro free, with no credit card. After that you keep 5 free rewrites every day, or go Pro for 100 a day, every style and longer texts.