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Best Free AI Tools to Write Professional Emails
Some emails are hard to write: chasing payment, saying no, fixing a mix-up. AI gives you a calm, clear first draft.
The top tools
3
GeminiBest for: Works well if you already use Gmail and Google
Free (paid plans available)
Open Gemini ↗Free (paid plans available)
How to do it, step by step
- Open an AI chat app.
- Tell it who the email is to and what you need: "Write a short, polite email to a customer reminding them their invoice is 2 weeks late."
- Say the tone you want: friendly, firm, or formal.
- Read it, fix any details, and make it sound like you.
- Copy it into your email and send.
Tip: Ask the AI to "make it shorter." Short emails get read and answered.
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More run a business guides
Make a job quote →Send invoices and get paid →Book appointments online →Make a simple website →Get found on Google →Make a logo →
Picked by UniHive. Prices and free plans were checked in October 2026 and can change, so check the tool's own site before you pay for anything. UniHive isn't paid by any of these tools.