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AI Tools to Write Emails (2026)

AI tools that write emails turn a few bullet points into a finished message in the right tone, reply to a thread with context, or clean up a draft before it goes out.

The general assistants do this well in a chat window; workspace assistants do it inside the pages and inboxes you already use, which removes the copy-paste step.

The difference between tools is rarely the prose, it is where the tool lives, whether it remembers your voice and past threads, and what it costs per seat when a whole team uses it.

Most vendors include email drafting in their free plans with usage caps. The listings below compare each tool on tone control, integrations and the date its pricing was checked.

Quick answer

Which AI tool to write emails should you use?

ChatGPT drafts and rewrites emails well on its free plan. Teams that work in Notion get the same inside their workspace with Notion AI, without switching apps.

  1. ChatGPTStart here
  2. GeminiCheapest at $4.99/mo
  3. GrammarlyWriting specialist
  • 5tools listed
  • 5of 5scored by an editor
  • 4of 5with a free plan
  • $20/momedian entry price
  • Aug 26last pricing check
Top picks

Top 3 AI tools to write emails right now

  1. 1 Editor's pick

    ChatGPT

    Chatbots & agents
    8.7

    OpenAI's general-purpose assistant for writing, analysis, images and code

    Price
    $20/mo
    Free plan
    Yes
    API
    Yes
    Pricing checked Aug 25
  2. 2 Cheapest at $4.99/mo

    Gemini

    Chatbots & agents
    8.6

    Google's assistant across the Gemini app, Gmail, Docs and Android

    Price
    $4.99/mo
    Free plan
    Yes
    API
    Yes
    Pricing checked Aug 26
  3. 3 Writing specialist

    Grammarly

    Writing
    8.1

    Grammar, tone and rewriting help in every app you already write in

    Price
    $30/mo
    Free plan
    Yes
    API
    No
    Pricing checked Aug 26

Compare the best AI tools to write emails

Ranked by editor score, then by listing completeness. Entry price is the cheapest paid plan.

Comparison of AI tools to write emails by price, free plan, platforms and score
ToolBest forFromFree planPlatformsScore
1ChatGPTAnyone who wants one assistant for writing, research, analysis and light coding$20/mo YesWeb app, Windows, macOS +28.7
2GeminiAnyone already working in Gmail, Docs and Drive who wants one assistant across them$4.99/mo YesWeb app, iOS, Android +18.6
3GrammarlyAnyone writing English daily who wants corrections without leaving their app$30/mo YesWeb app, Windows, macOS +48.1
4Notion AITeams that run their docs and wikis in Notion and want AI on that content$24/mo YesWeb app, Windows, macOS +27.7
5Microsoft 365 CopilotCompanies already standardized on Microsoft 365 that want AI inside Office$18/moNoWeb app, Windows, macOS +27.3

All AI tools to write emails, compared

Every listing in this hub, 24 per page.

Notion AI

Productivity
7.7

AI writing, meeting notes and search built into your Notion workspace

Price
$24/mo
Free plan
Yes
API
Yes
Pricing checked Aug 25

Microsoft 365 Copilot

Productivity
7.3

AI inside Word, Excel, PowerPoint, Outlook and Teams

Price
$18/mo
Free plan
No
API
Yes
Pricing checked Aug 26
Buying guide

How to pick an AI tool to write emails

4 checks, in the order that saves the most time.

  1. Pick the tool that sits where you write

    A chat assistant works for occasional drafts; for daily email, a Chrome extension or an assistant embedded in your workspace saves the round trip.

  2. Test tone and length control

    Ask for the same email in three tones and two lengths. A good tool keeps your facts and changes only the voice.

  3. Check thread awareness

    Replying well requires reading the previous messages. Tools that only see your prompt produce generic replies.

  4. Compare per-seat pricing for teams

    Email drafting is often bundled in a workspace plan you already pay for; a separate subscription rarely makes sense for a team.

Budget

Free, freemium or paid: AI tools to write emails by pricing model

Entry price is the cheapest paid plan on monthly billing. Every listing shows the date its pricing page was checked.

Categories for AI tools to write emails

Related use cases

Questions

Write emails with AI: FAQ

Short, factual answers on pricing, free plans and how AI tools to write emails are ranked here.

Ask another question

What is the best AI for writing emails?

For individuals, ChatGPT handles drafts and replies well on its free plan. For teams working in Notion, Notion AI drafts and rewrites inside the workspace without switching apps.

Can AI reply to emails automatically?

Assistants draft replies you review and send; fully automatic sending needs an automation layer and is rarely a good idea for anything that matters.

Are AI email writers free?

The main assistants include email drafting in their free plans with daily caps. Paid plans add tone memory, longer context and unlimited use.

Will AI-written emails sound robotic?

Not if you give it your bullet points and a tone instruction; the generic feel comes from empty prompts. Edit the first and last sentence yourself and the rest reads naturally.

For makers

Built an AI tool that helps write emails? Get it listed free

A complete listing on Webanas ranks for your product name plus "pricing", "alternatives" and "review" queries. No fee, no affiliate deal, no sponsored tier.

  • Structured page with pricing table, platforms and integrations
  • Reviewed by an editor, usually within a few days
  • Dashboard to update your listing whenever pricing changes