This free AI email generator writes a complete email, a reply to a message you received, or a list of 10 subject lines from a one-line description. You pick who the email is for and the tone, and it returns a draft with alternative subject lines, a word count checked against a typical length for that reader, and a readability grade. No signup and no account are needed.
How to write an email with the AI email generator
- Choose a mode at the top of the tool: Write an email, Subject lines, or Reply to an email.
- For a new email, describe its purpose in one line, for example "follow up after a sales call" or "ask my manager for Friday off".
- Pick the recipient type (colleague, manager, client, prospect, business partner, investor or cold outreach) and a tone (professional, formal, friendly, persuasive or concise).
- Add any key points the email must include, such as a deadline, a project name or a booking link. This field is optional.
- Click Generate Email, then check the word count, the readability grade and the three alternative subject lines under the draft.
- Copy the email, fill in any highlighted [placeholders] with your own details, and send it from your usual inbox.
Three modes in one email writer
Most people searching for an AI email writer need one of three jobs done, so the tool splits them.
Write a full email
The default mode drafts a subject line, greeting, body and sign-off from your purpose, recipient, tone and key points. After the email it lists three alternative subject lines with different angles. Click any of them to copy it.
Reply to an email you received
Paste the message you got and say how you want to respond: decline politely, accept and propose a time, ask for a discount, and so on. The AI email reply generator writes only your side of the conversation, starts with a "Re:" subject line, and keeps to the tone you chose. It reads up to about 2,000 characters of the original message, which covers almost any normal business email.
Generate subject lines only
Describe what the email is about and you get 10 subject lines across different angles: curiosity, a clear benefit, urgency, a direct personal line and a question. Each line shows its character count, and lines of 60 characters or fewer are marked so you can spot the ones that will not be cut off on a phone. If subject lines are your main job, the dedicated email subject line generator and the subject line tester go further.
Recipient type changes the email, not just the greeting
A note to a colleague, a cold email to a stranger and an update for an investor need different openings, lengths and levels of detail. The recipient setting is passed to the model with your purpose, so a cold outreach draft comes back shorter and gets to the ask faster, while a client email has room for context. This is what makes it useful as a professional email generator for business use and as a sales email generator for prospects and leads, without a separate tool for each.
Tone works on top of that: formal for first contact with a senior person, friendly for teammates, persuasive for pitches, concise for busy readers.
Word count benchmark and readability grade
Under every full email or reply you see two numbers. The first is the word count, and in Write mode it is shown next to a typical range for the recipient you picked: 50 to 150 words for cold outreach, sales emails and colleagues, 75 to 200 for a manager or investor, and 100 to 250 for clients and business partners. They are rules of thumb, not a guarantee of replies.
The second is a reading grade with a label, worked out from sentence length and syllables. A cold email that reads at a college level is harder to skim than it needs to be. If the grade is high, regenerate with the Concise tone or cut the longest sentence yourself.
Editing an AI-written email before you send it
Treat the output as a fast first draft. The model fills gaps it cannot know with bracketed placeholders like [your name] or [date], and the tool highlights those so you do not send one by mistake. Check every fact, number and name. Add one sentence only you could write, such as a detail from your last call, so it reads as personal. If the first draft misses, click Generate again; each run produces a fresh version.
What this email generator does not do
It does not send email, connect to Gmail or Outlook, or build multi-step campaigns. It also does not create email addresses or usernames, which is a different search that sometimes lands here. If you need a signature block to sit under your new email, use the free signature generator, and for a profile blurb try the AI bio generator.
AI email generator FAQ
Is this AI email generator free?
Yes. It is free to use with no signup, no account and no credit card. A background security check may run to block bots, but there is no paywall on the drafts.
Can AI write a reply to an email for me?
Yes. Switch to Reply to an email, paste the message you received, and describe how you want to answer. The tool writes your reply with a "Re:" subject line in the tone you pick.
How long should a professional email be?
Shorter than most people write. The tool's built-in guide is 50 to 150 words for cold and sales emails and up to about 250 for client or partner updates. Lead with the point and keep one clear ask.
Can I use it for cold sales emails?
Yes. Choose Prospect or Cold Outreach as the recipient and Persuasive or Concise as the tone, and list your offer and call to action as key points. Personalise the first line before sending, since generic openers are easy to ignore.
What makes a good email subject line?
One that says what the email is about or why it matters, in about 60 characters or fewer so it is not truncated on mobile. Subject lines mode gives you 10 options with a character count on each.
Does the tool keep my emails?
There is no account or history. Your text is sent to the AI model to write the draft and the result is shown on the page; copy anything you want to keep.