Summary

This AI email writer turns an email type, a tone and a few facts about your offer and recipient into a short B2B email draft with three subject lines. It uses fixed templates in your browser rather than a language model, checks the word count against the 50 to 125 word range from Boomerang's 2016 study, and flags long subject lines so you can edit before sending.

Free email tool

AI Email Writer: Draft a B2B Email in Seconds

Pick an email type, add three details about your offer and your recipient, and get a short draft with subject lines and a word count. Free, instant, no signup.

Write my email

Draft your email

Choose the email type and tone, fill in the fields, and read the draft below. Subject lines and the word count update as you type.

Subject lines

    Email body

    Drafts are assembled from fixed templates in your browser. Nothing you type leaves your device. Edit the text above before you send it.

    How it works

    What happens between your inputs and the draft

    Templates, not a language model

    Each email type has its own openings, asks and sign-offs, written by an editor. Your details are slotted in, so the draft stays predictable and nothing you type leaves your browser.

    A length check against real data

    The word counter compares the draft with the 50 to 125 word band that Boomerang found drew the highest response rates in its 2016 study of more than 40 million emails. Edit the text and the count follows.

    Subject lines with a length flag

    Three subject options come with each draft. Any subject over 50 characters is flagged as likely to be cut off on a phone, which is a rule of thumb rather than a published limit.

    Why drafts need an editor

    A template gets you to the first draft, not the send button

    The slowest part of an outreach email is rarely the typing. It is deciding what to say first, and that decision is the same every time: who is this for, what do you offer, and what do you want them to do next. A template fixes the order, so you only supply the facts. What a template cannot supply is the reason this person should care. That is why the tool has a field for it, and why the draft reads flat when you leave it generic. One concrete detail about the recipient, and one real result from your side, change the email more than any choice of wording. Boomerang's analysis, published in 2016, found that emails of 50 to 125 words kept response rates above 50 percent, and that rates eased toward 44 percent around 500 words. Short is not magic. It is simply what leaves room for one clear ask. If your draft needs more, it probably contains two emails.

    • Lead with why you are writing to this person
    • State your offer in one plain sentence
    • Add one result you can actually verify
    • Close with a single, easy ask
    Notebook with a red pencil, a stack of blank index cards and a phone on a wooden desk
    Step by step

    From blank page to a sendable draft

    1. 1

      Choose the email type

      Cold outreach, follow-up, meeting request or product announcement. Each one changes the opening and the framing of the ask.

    2. 2

      Fill in the facts

      Add the recipient, your company and your offer in one line. Include the reason you are writing to them, since that field does most of the work.

    3. 3

      Cycle through the variants

      Press the variant button to swap the opening, the ask and the subject lines. Keep the version that sounds like something you would say.

    4. 4

      Edit, check and copy

      The draft box is editable. Replace anything generic, watch the word count stay in range, then copy the email and the subject line.

    Questions

    Common questions about this email writer

    Is this AI email writer free?
    Yes. There is no signup, no run limit and nothing to install. The page is the tool, and everything happens in your browser.
    Does it actually use AI?
    No. It assembles drafts from fixed editorial templates, using the details you type in. That keeps the output predictable and instant, and it means nothing you enter is sent to a model or a server. Treat the result as a first draft for a human to edit, not finished copy.
    Where does the 50 to 125 word range come from?
    From a 2016 analysis by Boomerang of more than 40 million emails, which found response rates above 50 percent for messages between 50 and 125 words. It is an observation about replies to ordinary email, not a guarantee for your market, so use it as a guardrail rather than a rule.
    Why does the tool show subject line lengths?
    Inbox apps cut long subjects short, and mobile screens cut them sooner. The tool flags anything over 50 characters as likely to be truncated. That figure is a working rule of thumb, not a published limit, because each mail client truncates differently.
    Can I send the draft as it is?
    You should not. The templates cannot know your recipient, so the draft needs at least one specific detail about them and one real result from your side. If the draft still contains square brackets, a field is empty.
    What is the difference between the variants?
    Each variant changes the opening line, the wording of the ask and the subject lines, while the facts you entered stay the same. Cycle through them and keep the one that sounds most like you.
    Is the email text stored anywhere?
    No. The draft lives in the text box on this page. Closing or reloading the tab clears it, so copy anything you want to keep. The only thing recorded is an anonymous count that the tool was used.

    Emails are one step in a longer editorial chain

    EsyBlog produces articles with the same discipline: a method first, then the volume. See the demo.

    See the demo