Best AI Email Writers (2026): 10 Tools Compared

Most of us don't mind writing emails. We mind writing the fortieth one of the week, in the right tone, to someone we've never met. That's the gap AI email writers try to fill: they turn a few notes into a draft, tidy a rushed reply or suggest a better opening line.

Here are ten AI email writers, in no particular order, sorted alphabetically. Two are familiar names and the rest are smaller or more focused. I've taken every description from each tool's own website and directory listings, so check the current details before you connect an inbox. If you'd rather start with prompts, my ChatGPT prompts for email writing show how to get a draft that sounds like you.

AI email writers at a glance

In the free plan column, Yes means the tool's own site describes a permanent free plan or free use. Trial only means a free trial but no ongoing free plan that I could confirm. Free use nearly always has limits on how much you can write, so check it against a normal week of email.

Tool	Type	Good for	Free plan
AImReply	Browser extension	Quick drafts inside your webmail	Yes
Grammarly	Writing assistant	Polishing tone and clarity everywhere	Yes
HyperWrite	Writing assistant	Drafting with web-aware suggestions	Yes
Jasper	Marketing writer	Brand-voice copy for teams	Trial only
Lavender	Email coach	Sales emails that read well	Yes
MailMaestro	Inbox assistant	Drafting and replying in Outlook and Gmail	Trial only
Mailmeteor	Mail merge and writer	Personalised campaigns from Google Sheets	Yes
Shortwave	AI email client	Sorting and writing in one inbox	Trial only
SmartWriter	Cold email writer	Personalised outreach at volume	Trial only
WriteMail.ai	Email writer	Replies in a chosen tone	Yes

Ten AI tools that draft emails for you

AImReply

Best for: People who want a no-signup helper that drafts and rephrases emails in the browser.

Grammarly

Best for: Owners who want one assistant across email, documents and chat, with tone suggestions as they type.

HyperWrite

Best for: Writers who like predictive suggestions and a Chrome extension that works inside Gmail.

Jasper

Best for: Marketing teams who want email copy kept in a consistent brand voice across campaigns.

Lavender

Best for: Sellers who want coaching on cold and follow-up emails before they hit send.

MailMaestro

Best for: Busy professionals who live in Outlook or Gmail and want replies drafted in place.

Mailmeteor

Best for: Small senders who want a free email writer plus mail merge that starts from a spreadsheet.

Shortwave

Best for: Gmail users who'd like an inbox app where the assistant organises, searches and drafts.

SmartWriter

Best for: Sales teams who want each cold email personalised from prospect details.

WriteMail.ai

Best for: Anyone who wants to pick a tone and language, then draft and reply from the browser or an app.

What to look for in an AI email writer

Two tools can both say they write emails and still suit very different people, so start with the job you need done.

• Where it works. Some sit inside Gmail or Outlook, while others are separate websites you paste into. The nearer it sits to your inbox, the more likely you'll use it.
• Voice. Can you set a tone, or teach it how you write? A draft that sounds like a stranger needs more editing than it saves.
• Replies or new emails. Answering a customer is a different task from writing a cold email. Check which one the tool is built around.
• Personalisation. Cold outreach tools often pull details about the person you're writing to. Check what they use and where it comes from.
• Languages. If you write to customers abroad, look at which languages it handles well.
• Team use. Shared templates and a consistent voice matter once more than one person is sending.

Which type of AI email writer suits which sender

• Solo owners usually do well with a browser extension that drafts replies in a few seconds.
• Sales teams tend to want a coach or a personalisation tool for outreach.
• Marketers often need copy kept in one brand voice across campaigns and newsletters.
• Busy professionals with a crowded inbox might prefer an assistant that sorts mail as well as writing it.
• Spreadsheet people may like a tool that merges names and details into each message.

If your emails go out as campaigns, my notes on prompts for email marketing cover how to stop newsletters sounding like everyone else's.

Keeping AI-written emails safe and human

An AI draft is a starting point, not a finished email. Read every line before you send, because a tool can invent a detail, get a name wrong or promise something you can't deliver. Be careful about pasting customer details into any online tool, and check its privacy page to see what it stores and whether it trains on your text. If you email people in bulk, UK GDPR and PECR (and CAN-SPAM in the US) may apply to how you contact them. This isn't legal advice, so check the official guidance for your own situation.

Questions to ask before you let AI write your emails

• Does it work inside the inbox I already use?
• Can I set the tone, and will it learn my style?
• What does it do with the text of my emails?
• What does the free option include, and does it cover the features I need?
• Can I edit every draft before it goes anywhere?
• What happens to my templates if I stop using it?

For the wider picture on saving time with software, my article on how AI tools affect productivity is a good companion read.

Why a smaller AI email writer can be a smart pick

Smaller tools often do one job, such as replies or cold outreach, and that keeps them quick to learn. Many also change fast when email providers update their rules. The usual checks apply: make sure the product is still being updated, read the privacy page and try it on a few harmless emails first.

Do you make an AI email writer or email assistant? Tool makers can ask to be considered for a featured place on this list.

Trying out your shortlist of AI email writers

Choose two that fit the way you work, then write the same three emails in each: a polite reply, a firm reminder and a first message to a stranger. Compare the tone, how much editing each draft needed and how clearly the site explains its limits. Keep the one that sounds most like you and note anything you'd want to ask the maker.

Frequently asked questions

What is an AI email writer?

It's a tool that drafts or improves emails from a short prompt or a few notes. Some work as browser extensions inside Gmail or Outlook, and others are separate apps or websites.

Are AI email writers free?

Some have a permanent free plan with limits, while others offer a free trial only. Check each tool's own site for what the free option covers.

Will recipients know an email was written by AI?

Not necessarily, but generic drafts often read as generic. Edit each one so it sounds like you and includes a detail only you would know.

Is it safe to paste customer details into an AI tool?

Be careful. Read the tool's privacy page, check whether it stores or trains on your text and leave out sensitive personal data where you can.

Can AI write cold emails?

Yes, several tools are built for it. Cold contact is covered by data protection and email marketing rules, so check the official guidance for your own situation.