What can an AI email rewriter do?

An AI email rewriter takes a draft email and rewrites it for a specific purpose or tone — making it more professional, friendlier, more concise, more assertive or more persuasive. It can also fix grammatical errors, improve clarity, restructure rambling paragraphs and suggest a stronger subject line. The goal is to turn a rough draft into a polished, send-ready email.

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What does the Email Rewriter do?

A good email is clear, appropriately toned and easy to act on. Most email drafts — whether written quickly by a person or generated by AI — fail at least one of those. The email rewriter takes your draft and rebuilds it for a specific purpose: more professional for a job application, friendlier for a client relationship, more assertive for a complaint, or more concise for a busy executive.

It also fixes common problems: buried key points, over-long sentences, passive voice where active is needed, and vague calls to action that get ignored.

Choose your tone

👔

Professional

Formal, confident, polished

😊

Friendly

Warm, approachable, human

⚡

Concise

Short, direct, no filler

🎯

Assertive

Clear expectations, firm tone

🤝

Persuasive

Motivating, benefit-led

😌

Diplomatic

Sensitive, measured, tactful

Use cases

📨

Cold outreach

Rewrite pitch emails to be benefit-led and concise. Remove "I hope this email finds you well" and lead with the value instead.

😤

Complaint emails

Take an emotionally-written complaint and restructure it to be firm, clear and solution-focused — the version that actually gets a response.

💼

Job applications

Rewrite covering emails to sound confident and specific rather than generic — tailored to the role and company.

🔄

Follow-up emails

Craft follow-ups that don't feel passive or desperate. The right tone makes chasing a decision feel natural, not awkward.

🏢

Internal communication

Rewrite upward communication to senior stakeholders — more concise, more confident, less hedging.

🌍

Non-native English writers

Improve fluency, naturalness and idiomatic expression for business emails written in a second language.

Before and after example

Before — rough draft

Hi, I just wanted to follow up on my previous email from last week. I was wondering if you had a chance to look at the proposal I sent over. I just wanted to check in and see if there was any feedback or if you needed any more information from my side. Please let me know at your convenience. Thanks.

After — concise & assertive

Hi [Name], I sent over the proposal last week and wanted to check where things stand. Happy to jump on a 15-minute call to answer any questions — does Thursday or Friday work for you?

Before — complaint email

I'm really not happy with the service I received. The delivery was late and when it arrived it was damaged. I've been a customer for years and I think this is totally unacceptable. I want something done about this.

After — firm & professional

I'm writing to request a resolution regarding my order [reference]. It arrived three days late and the item was damaged on delivery. I'd like either a replacement sent within 5 working days or a full refund. Please confirm which you'll be arranging by return.

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Frequently asked questions

An AI email rewriter takes a draft email and rewrites it for a specific purpose or tone — making it more professional, friendlier, more concise, more assertive or more persuasive. It also fixes grammatical errors, improves clarity, restructures rambling paragraphs and suggests a stronger subject line. The goal is a polished, send-ready email.

Use an email rewriter when you're not confident your draft hits the right tone, when you're writing to someone significantly senior or junior to you, when English isn't your first language, when you're sending a cold outreach email where every word matters, or when you want a second opinion on how a message might land before you send it.

Yes — complaint emails are one of the most valuable use cases. An AI rewriter can take an emotionally-written complaint and restructure it to be assertive without being aggressive, clear without being rude, and solution-focused rather than blame-heavy. This significantly improves the chance of a positive response.

Yes — the Email Rewriter is free to use with no sign-up required for basic access. It is launching on UnAI. Sign up for early access on the AI Tools page to be notified at launch.