Make your email sound professional.
You know what you want to say — the English just comes out a little translated. Paste an email you wrote, pick a tone, and ESL Humanizer rewrites it in natural, professional English. It keeps every name, date and number, never adds promises you didn't make, and shows each change word by word.
- Free for ~250 words
- No sign-up needed
- Your email isn't stored
Rewrite an email you wrote
Choose a tone, paste your email or message, or load our example.
Don't paste passwords, card numbers or confidential client data. Your text is sent to our AI provider to be rewritten and isn't saved to our database.
1 of 1 free rewrites left today ·
Working on the full text? Plans start at about $22/month, with one-click cancellation. See pricing
Writing tips
5 fixes that make work emails sound fluent
The phrases that make a careful email sound translated — and what natural English looks like instead.
- 01
By for deadlines, not until
Until describes something that continues up to a point. For a deadline — the latest time something will happen — English uses by.
I will send the report until Friday.
I'll send the report by Friday.
- 02
Wait for, not wait
Wait needs for before the thing you're waiting for. Await works without it, but sounds very formal in most emails.
We are waiting the approval from legal.
We're waiting for approval from legal.
- 03
Turn orders into requests
A direct imperative can read as rude in English even when it isn't meant that way. A question softens it without losing clarity.
Send me the updated file today.
Could you send me the updated file today?
- 04
Discuss, not discuss about
Discuss already means talk about, so it takes no preposition. The same goes for contact, answer and attend.
Can we discuss about the budget tomorrow?
Can we discuss the budget tomorrow?
- 05
Skip the formal throat-clearing
"I am writing to inform you that…" is common in textbooks but rare in real work emails. Get to the point in the first line.
I am writing to inform you that the meeting is cancelled.
Just a quick note: the meeting is cancelled.
- Works on emails you wrote — it doesn't write emails from a prompt.
- Keeps every name, date, number and link exactly as written.
- Never adds apologies, promises or deadlines you didn't make.
- Shows every edit with a meaning score, so you only send what you agree with.
Pick the tone that fits the person you're writing to. If the meaning score drops, compare the two versions before you send.
FAQ
Questions professionals ask
Will it change what my email says?
It shouldn't. The rewrite keeps your request, your facts and your commitments, and every rewrite gets a meaning score that warns you if anything drifted. Every change is highlighted, so you can check before you send.
Which tone should I choose?
Polite works for most emails to clients and people you don't know well. Direct is for colleagues who prefer short messages. Formal suits official contacts and senior managers. Friendly is for people you already work with closely. Keep my tone only fixes the English.
Does it work for Slack, Teams and LinkedIn messages?
Yes — anything you wrote in English. Short chat messages work well with the Direct or Friendly tone.
How is this different from the AI built into Gmail or Outlook?
Built-in assistants are handy for drafting. ESL Humanizer is built for editing English you already wrote: it shows each change word by word, checks that the meaning didn't drift, and keeps your own level of English instead of inflating it.
How long can my email be?
Free rewrites take up to 1500 characters at a time — about 250 words, which covers most emails. Subscribers can rewrite up to 3,000 characters (~500 words) at once.
Send emails that sound like you — in fluent English.
Paste an email and see the difference in ten seconds.
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