Free AI Email Writer

An AI email generator turns a one-line instruction into a finished, sendable email — subject line, greeting, body and sign-off. Instead of staring at an empty compose window, you describe the outcome you want and edit what comes back.

8

Tones, from Formal to Direct

12

Languages supported

~5s

Typical time to a draft

$0

To start — no account

An AI email writer drafts email from a short description of your intent. You supply the facts — who it is for, what you need, any deadline — and the model handles structure, phrasing and register.

The useful distinction is between generating and replying. Generating starts from nothing: “ask Priya to review the Q3 deck by Friday”. Replying starts from a message you received, where the AI has to read the original, work out what is being asked, and answer it. MailRewrite does both on the same page.

1. 1

   Describe what the email needs to do

   One line is enough. Include names, dates and any number that matters — the AI will not invent them, and it cannot guess them.

2. 2

   Set the tone, length and language

   Formal for a client, Friendly for a teammate, Direct when a thread has gone on too long.

3. 3

   Generate, then edit before you send

   You get a complete draft in seconds. Check the facts, make the opening sound like you, then copy it into your inbox.

Three briefs and exactly what each returns. Note how little you have to type, and how much structure the model supplies.

What Premium adds to the same brief

Free covers most everyday email. Premium changes two things that matter when the message carries weight: a stronger model, and room to use more than a hundred words. Here is the first brief above, run on both tiers, unedited.

The free draft does the job in four lines. The Premium one says what kind of feedback would help, explains why the deadline exists, and closes properly — the difference between a note you send a colleague and one you send a partner.

Tone is the setting people get wrong most often.

A general chatbot can do all of this if you write a careful enough prompt. The difference is that here the prompt is already written — the tone, length and language settings are the prompt — so you type one line instead of five. Templates are faster still, but they cannot adapt to your situation, which is usually the part that matters.

Paste the message you received, add a short instruction — “politely decline”, “confirm Wednesday at 2pm” — and the reply is written against the original’s context and tone.

Generated email has tells: every sentence the same length, no contractions, and transitions like “moreover” that nobody uses in an inbox. Four fixes:

• Rewrite the first sentence yourself. The opening is what the reader judges, and it is the easiest line to make sound like you.
• Cut one adjective per paragraph. Generated writing over-qualifies.
• Keep one short sentence. Uniform sentence length is the clearest giveaway.
• Delete any sentence that only restates the previous one.

Or let the AI Humanizer rewrite those patterns out, and the AI Detector show you sentence by sentence which lines still read as machine-written.

Free results are complete emails you can copy and send — not previews that stop halfway. What Premium sells is the longer version and the extras.

The limits exist because every generation costs money to run. Capping the free tier is what keeps it genuinely free rather than free-until-we-turn-it-off.