AI Email Writer
Tell it what you need to say — get back a full, ready-to-send email with a subject line.
A free AI email writer turns a rough idea into a complete, ready-to-send email in seconds. Describe what you need to say — "follow up after a sales call" or "apologize for a delayed shipment" — and the tool writes a professional message you can copy, paste, and send.
REXAI's AI Email Writer handles sales outreach, customer support, follow-ups, apologies, introductions, and more. Choose your tone — formal, friendly, persuasive, or casual — and get a draft that matches your voice. No signup, no watermark, no limits.
Why Use an AI Email Writer?
Writing emails takes time. Even a simple follow-up can eat five to ten minutes when you're staring at a blank screen, unsure how to open, what to include, and how to close. Multiply that across dozens of emails a day, and email writing becomes a real productivity drain.
An AI email writer removes the blank-page problem. You tell it the goal and the context, it produces a full draft, and you edit it to fit. Most emails take under 30 seconds to generate — a 10x speed-up on routine messages.
What Kind of Emails Can You Write?
Sales outreach. Cold emails, warm intros, and pitch messages that get replies. Follow-ups. Post-meeting, post-demo, or post-purchase follow-ups that keep the conversation moving. Customer support. Replies to complaints, refund requests, and general inquiries. Apologies. Service delays, mistakes, or missed deadlines — handled professionally. Internal communication. Updates, requests, and cross-team coordination. Introductions. Reaching out to new contacts, partners, or collaborators.
How to Use the AI Email Writer
1. Describe what you want to say. Be specific. "Follow up with a client after a demo — they seemed interested but haven't replied in a week" works better than "follow up."
2. Pick a tone. Choose formal, professional, friendly, casual, persuasive, or empathetic. The AI adjusts vocabulary, sentence length, and greeting accordingly.
3. Add context (optional). Include details like the recipient's name, your company, or specific points you want covered. More context means a more accurate draft.
4. Generate and edit. The AI produces a complete email with subject line, greeting, body, and sign-off. Copy it, tweak it, send it.
Tone Options Explained
Professional. Neutral business tone. Safe for most situations — first contact with clients, external communication, formal requests.
Friendly. Warm but still business-appropriate. Good for existing clients, coworkers, and ongoing relationships.
Casual. Relaxed and conversational. Best for internal teams, startups, or informal contexts.
Formal. Traditional and respectful. Appropriate for legal, financial, or highly structured industries.
Persuasive. Designed to drive action — sales outreach, cold emails, upsells. Uses psychological hooks without being pushy.
Empathetic. For apologies, sensitive situations, or handling upset customers. Acknowledges feelings before proposing solutions.
Tips for Better AI-Written Emails
Give real context. The AI works best when you describe the situation specifically. Mention the recipient, the relationship, and any key points.
Edit before sending. Always review the output. Add personal touches, remove anything that doesn't match your voice, and double-check facts.
Keep it short. Long emails rarely get read. Trim the AI draft if it feels bloated — most business emails should be under 150 words.
Subject lines matter. The AI generates one, but customize it. Specific subject lines ("Following up on Tuesday's demo") beat vague ones ("Quick follow-up").
Who Uses AI Email Writing
Sales professionals send dozens of personalized outreach emails per day. Freelancers handle client communication faster. Customer support teams respond to tickets in less time. Founders and small business owners write important emails without a marketing team. Recruiters reach out to candidates at scale. Anyone who's ever stared at a blank email wondering how to start.
Frequently Asked Questions
- Is it free? Yes. Unlimited emails, no signup, no watermark, no limits.
- Can I use it for sales outreach? Yes. Choose the "persuasive" tone for cold emails and follow-ups.
- Is my data stored? No. Your input is sent to the AI to generate the email and is not stored. Avoid pasting sensitive information.
- Will the emails sound robotic? No — the AI is tuned for natural business writing. Edit the output to add your voice.
- Can I write emails in other languages? The tool focuses on English. For other languages, write the prompt in that language and the AI will respond accordingly.
- How long should a business email be? 75–150 words for most emails. Under 75 for quick follow-ups. Over 200 only when detailed context is needed.
- Can I generate multiple variations? Yes. Run the tool multiple times with slightly different prompts to get different drafts.
Write Your First Email Free
Describe your email in one sentence above and get a complete draft in seconds. Free, unlimited, and built for people who'd rather send than stare at a blank screen.