ToneBird
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Email rewriter

Rewrite an email so it says what you mean.
Compare tones while keeping your facts and decisions.

Your email draft

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Your draft.

Add your text, then compare three ways to express it.

Free to try, no account needed. Text is processed by an AI provider. Remove sensitive details. Privacy

From your draft to a clearer email.

You decide what the email says. Use the tool to work on how it reads.

  1. Your email draftRequired

    01Bring your draft.

    Paste the email you intend to send. Include the facts and boundaries you need to keep.

  2. How should it read?
    Warm and collaborative
    More options
    Who is it for?
    Client
    Output language
    Same as the draft
    Anything else to keep or change?
    Existing subject, optional
    Generate drafts

    02Choose the adjustment.

    Pick a clearer, warmer or firmer direction. Add the recipient and any details that must stay unchanged.

  3. Choose a draft
    SubjectCopy subject
    What changed and why
    Original
    Suggestion
    Copy body

    03Review the difference.

    Compare the candidates and their changes. Edit your choice, refine it and copy the body or subject separately.

A different tone. The same decision.

A useful rewrite makes the message easier to read without deciding something new for you.

Keep the scope

Your input

Hi Alex, the agreed fee covers three pages for $2,400. Two more pages need a separate quote. I can send the original three pages on Friday. Please confirm by Thursday.

One way to phrase it

Hi Alex, just confirming that the agreed fee of $2,400 covers three pages. Two more pages need a separate quote. I can send the original three pages on Friday. Please confirm by Thursday.

$2,400Three pagesSeparate quoteFridayThursday

The language is warmer. The extra work still needs a separate quote.

How do I make an email more professional?

Make the request easy to find and remove wording that distracts from it. Professional can still be warm. Add the recipient relationship when it changes how direct you want to be.

Can I be polite and still say no?

Keep the refusal or limit explicit. In the scope example, a warmer sentence still says that the two additional pages need a separate quote.

What if the email only needs shortening?

Choose Shorter or refine the selected draft after editing. Review the context that was removed, especially conditions, deadlines and why a request matters.

Make the intention easy to read.

Tone

Your tone may be clearer to you than to them.

In five experiments, Kruger and colleagues found that people overestimated how well email conveyed their intended tone. The 2005 study examined ambiguity, including sarcasm, where the reader lacks the voice the writer hears in their head.

Kruger et al., Journal of Personality and Social Psychology, 2005

Timing

Say when you actually need an answer.

Giurge and Bohns studied nonurgent work emails sent outside normal hours. Across eight preregistered experiments with 4,004 participants, recipients thought they needed to reply sooner than senders expected. A brief note clarifying response expectations reduced that mismatch.

Giurge and Bohns, Organizational Behavior and Human Decision Processes, 2021

Choose how you want to rewrite.

Look at the input, the review process and what you can change after the first result.

Explore ToneBird
Tool workflow comparison
ToolStarting pointReview and refinement
This ToneBird web toolYour outgoing email, an adjustment goal and optional recipient context.Compare editable candidates, inspect phrase changes, undo edits and refine the selected draft.
ToneBird desktop appAvailable conversation context, relationship information and saved writing preferences in supported apps.Review a candidate, Tweak the wording and Insert it into your reply field.
BatmailDraft, tone and optional recipient information.Separate subject and body with specific changes and reasons. Useful when you want to inspect the rewrite.
Write It BetterAn existing draft and a writing context.A result followed by tone and length controls. The result textarea was read only when inspected.

ToneBird makes email edits easier to control.

ToneBird applies your saved writing instructions to email drafts. Adjust the wording with Tweak and review the result before inserting it.

Download ToneBird
Circle
People, conversation summaries and open actions
PersonSummaryTo dos
Confirmed Thursday at 4 PM for 30 minutes. Needs two documents tomorrow.Send Alex the updated proposal tomorrow
Asked for invoice details to pass to finance.Resend the invoice details for Morgan’s finance team
Needs the updated brief and a list of decisions still open.Send David the updated project brief

Keep the person in view.

Find the review you agreed with Alex, the invoice Morgan asked for and the brief David is waiting on. Keep each reply connected to its own conversation.

Explore relationship memory

Keep your own way of writing.

Short greetings, direct updates or a refusal without a long explanation. Save applicable writing preferences in the desktop app’s Me and adjust them as your needs change.

Hi Alex, Thursday at 4 PM works for the 30 minute review. I’ll send the updated proposal and agenda tomorrow.

Explore personalized tone

Reply where the conversation is.

Use ToneBird beside readable reply fields in supported Mac and Windows apps. Review candidates, Tweak the wording and choose Insert. Send using your app’s own control.

GmailSlackWhatsApp
Alex’s email

Thursday, October 29 at 4 PM works for our 30 minute review. Could you send the updated proposal and agenda tomorrow?

The 30 minute review stays at 4 PM Thursday. Both documents are still due tomorrow.

This web page uses what you enter. The complete desktop replier can work with available conversation context and relationship information as the conversation continues.

Explore context aware replies

Before you use your draft.

Is an email rewriter different from a reply generator?

Yes. This tool starts with an email you have already drafted. If you have received a message and need help deciding how to respond, use the AI Response Generator instead.

Will it keep the meaning of my email?

The tool is instructed to preserve your facts, boundaries and level of commitment. AI can still make mistakes. Compare the draft and changes, then check names, numbers, dates and anything you are promising.

Can I rewrite an email without adding a subject?

Yes. The body is the main task. An existing subject can be included under More options. A new subject is suggested only when you enable that option. Subject and body have separate copy controls.

Can I write in Brazilian Portuguese or Japanese?

Choose the output language under More options. English, Brazilian Portuguese, Spanish, Chinese and Japanese are available, along with the language of the original draft. Review important wording before using it.

Does it send the email for me?

No. This web tool creates drafts. You choose, edit and copy the result, then send it from your own email app.

What happens when I reach a web limit?

All ToneBird web tools share browser, network and global limits. Regeneration and refinement use an attempt when sent to the AI provider, including cancelled or failed provider attempts. Requests rejected before that do not. Existing drafts remain editable and copyable.

What do you need to say next?

AI Response GeneratorAI Comment Generator敬語変換・チェック

Your best reply, in your apps.

Bring the person, available conversation context and your voice together with the complete ToneBird desktop replier.

Explore ToneBird

Your complete desktop replier.

  • Available conversation context
  • Relationship memory
  • Your saved writing preferences
  • Review, Tweak and Insert in your apps
Download for Mac

49.5 MB · macOS · v1.3.15

Download for Windows

215.9 MB · Windows x64 · v1.0.7

Free to download. The Mac download is under 50 MB. AI features need an internet connection.