Email tone checker
Paste your message and pick how it should sound. See how it reads now, the phrases behind that, and a rewrite that keeps every fact.
Free, no account needed. Updated .
Short answer
A tone checker reads a message the way the recipient might and names how it sounds: friendly, formal, blunt, defensive or uncertain, for example. This one lists up to three tones with a strength from 1 to 5, quotes the exact phrases that cause them, and rewrites the message in the tone you choose without adding facts.
How to use the tone checker
- Paste the message before you send it: an email, a chat reply or a post, up to 4,000 characters.
- Choose how it should sound: friendly, professional, empathetic or confident.
- Read the result. You see up to three tones the message has now, each with a strength from 1 to 5, and the exact phrases that create them.
- Take what helps from the rewrite. It keeps your facts and changes the wording. Keep your own sentences where they already work.
The tone labels
| Label | What usually causes it |
|---|---|
| Friendly | Greetings, thanks, plain words, contractions |
| Formal | Long sentences, passive voice, "please be advised" |
| Confident | Direct statements, clear next steps, no hedging |
| Empathetic | Naming the other person's situation or feeling |
| Apologetic | Repeated sorry, "unfortunately", "I'm afraid" |
| Urgent | "ASAP", deadlines, capital letters, many exclamation marks |
| Defensive | "As I said", "to be clear", explaining before answering |
| Blunt | Commands without please, very short sentences, no greeting |
| Uncertain | "I think", "maybe", "just wondering", "sorry to bother you" |
| Neutral | Facts with little emotion either way |
Why tone goes wrong in writing
In person, a voice and a face soften a short answer. In writing, the reader fills that gap themselves, and people under stress fill it with the worst reading. A quick "Fine, do it by Friday." from a busy manager reads as annoyed. "Per my last email" reads as a reprimand even when it is only a reference.
Customer messages are read in the same way. A reply that is correct but blunt can turn a question into a complaint, while the same facts with one line of acknowledgement close the ticket.
Quick fixes by tone
- Too blunt: add a greeting, a "thanks", and turn one command into a request.
- Too defensive: remove the first sentence of explanation and start with the answer.
- Too apologetic: keep one apology, then move to what you will do.
- Too uncertain: remove "just", "I think" and "sorry to bother you"; ask the question directly.
- Too formal: split long sentences and use the words you would say aloud.
Example
Message: "As I said before, the export has to be done by the admin. Please check the settings." It reads as defensive and blunt, because "As I said before" points at the reader's mistake. A friendly rewrite keeps the facts: "Good question: only admins can run the export. If you're not an admin, your workspace admin can do it from Settings."
Tone in customer support
Support teams write under time pressure, often the same answer many times a day. That is when tone slips: the twentieth reply about a password reset gets shorter and colder than the first. Three habits keep it steady:
- Start with the answer or the next step, then add one human line, not the other way round.
- Use the customer's words for the problem, so they know you read the message.
- Save replies that sound right as templates, and check new templates here before the team uses them.
A tone check is fast enough to run on any message that matters: a reply to an angry customer, a price change notice, or an apology for an outage.
Limits
- Tone is partly in the eye of the reader. Use the result as a second opinion, not a verdict.
- It is tuned for English text.
- The rewrite can lose your personal style. Check that every fact and promise is still there.
- 5 free AI runs a day, shared by all our AI tools. Your text is sent to our AI model and is not stored.
For readability rather than tone, use the readability checker. To draft a reply from scratch, use the email response generator.
Frequently asked questions
How does the tone checker work?
A small AI model reads the message and labels its tone from a fixed list, quotes the phrases that cause each tone, and rewrites the message in your target tone. Only phrases that appear in your text are shown.
Why does my email sound rude when I did not mean it?
Short sentences, missing greetings, commands without "please", and phrases like "as I said" or "per my last email" read as impatient in writing. Tone that a voice softens comes across harder on screen.
Is the rewrite always better?
Not always. It keeps your facts and changes the wording to the target tone, but it can lose your voice. Use it as a suggestion and keep the sentences that already sounded right.
Can it check tone in other languages?
It is tuned for English. Other languages may give rougher results, and the rewrite may come back in English.
Is my message stored?
No. It is sent to our AI model to check the tone and is not stored. You get 5 free AI runs a day, shared by all our AI tools.
Newsletter
Support notes, once a month.
One email with what we learn about help centers, honest AI answers and support teams. Unsubscribe at any time.
Related
- Free toolAI Email Response GeneratorPaste the email you received, choose the goal of your reply and the tone, and add any points it must include.
- Free toolReadability CheckerPaste a help article, an email or a page. See the Flesch scores, the sentences that are too long, and possible passive voice as you type.