Free AI Email Reply Generator

Describe the situation and get a subject line and a complete reply email you can edit before you send.

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Let’s write an email!

Type a few lines about what you need to say, or paste your notes. Replying to someone? Open Details above and paste their email.

Your email will appear herePick a purpose and tone, describe what to say, then press Generate email. The draft is fully editable.

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Email reply generator

A reply email that does its job

You have an email in front of you that asks for something — a decision, a date, an answer to three questions — and you want to answer it properly rather than write around it. The Email Writer turns a few lines about the situation into a subject line and a complete reply email, with the Reply to an email purpose already selected on this page. A reply answers what was asked, in the order it was asked, and adds nothing the sender did not raise. The reader should be able to put your reply beside their email and tick every point off.

How to write a reply email here

Three steps, about a minute.

Describe the situation

Say what has happened and what you want to happen, with the real names, dates, amounts and references. A sentence or two is enough; the example below started from one paragraph.

Set tone, length and details

Reply to an email is already selected. Pick a tone — Professional for most work threads; Friendly when the sender was; Concise when the thread is long and the answer is short. — and a length, and add the recipient and your name in Details so the greeting and sign-off are right the first time.

Read it, change it, send it

Read it as the recipient would. Fix the greeting if it needs fixing, cut a line, swap in an alternative subject. Then copy it, open it in your mail app, or download it.

What a reply email has to contain

The shape the draft follows, and the shape to check for before you send.

SubjectLeave it alone. Replying inside the thread keeps the conversation together in every mail client; changing the subject splits it.
OpeningOne line that acknowledges the email — thanks for the details, or confirming you have read it — and nothing warmer than the sender was.
BodyTheir points, in their order. If they asked three things, three short answers; if one needs more than a sentence, give it its own paragraph.
The askIf your reply needs something back — a confirmation, a file, a date — say so in its own line so it cannot be missed.
CloseMatch the sender's sign-off. Someone who wrote Hi Sam does not want Yours faithfully back.

One brief in, a finished reply email out

A real run of the tool with the Reply to an email purpose, unedited.

The brief

Reply to a supplier who asked three things: can we confirm the delivery address is the Leeds warehouse, do we still want 5,000 units or 6,000, and is net-30 acceptable. Confirm Leeds, confirm 5,000, and say net-30 is fine but we need the invoice by the 25th.

The email being answered: Hi, before we schedule production could you confirm three things: (1) the delivery address is your Leeds warehouse, (2) you still want 5,000 units rather than the 6,000 mentioned on the call, and (3) net-30 payment terms are acceptable. Thanks, Priya

Purpose Reply to an email, tone Professional, standard length. No recipient or sender name was given in Details, so the greeting and sign-off are the tool's defaults.

The draft returned

Confirmation of Order Details

Hi Priya,

The delivery address is indeed our Leeds warehouse. We will proceed with 5,000 units as discussed, not the 6,000. Net‑30 terms are acceptable, provided we receive the invoice by the 25th of this month.

Please let us know if any further information is needed.

Best regards

Alternative subject: Order Delivery and Terms Confirmation
Alternative subject: Details for Upcoming Production

Generated by the Email Writer on 18 September 2026 and printed here unedited. Every date, name and number came from the brief; a draft is meant to be read and edited before it is sent.

Subject lines for a reply email

Say the thing, front-load the words that identify it, and keep the part that matters inside the first 35–40 characters a phone shows. The tool returns three and shows a live character count.

1Re: (their subject, unchanged)30 characters
2Re: Shipping date for the kraft mailers — confirmed51 characters
3Re: Your three questions about the March invoice48 characters

Tone, length and timing

ToneProfessional for most work threads; Friendly when the sender was; Concise when the thread is long and the answer is short. Formal only if the incoming email was.
LengthAs long as their questions need and no longer. A one-question email gets a three-line reply; three questions get three short paragraphs.
Timing and etiquetteAnswer within a working day where you can, even if the answer is "I will have this for you on Thursday". Reply-all is a decision, not a default: if two people on the thread need the answer, send it to those two. Trim the quoted chain to the part you are answering.

Common mistakes in reply emails

Five things readers notice at once, and what the draft does instead.

Answering around the question

A reply that discusses the topic without answering the question reads as evasion. The tool works through the pasted email point by point so the answer is there.

Changing the subject line

Editing Re: Invoice 4471 to Invoice question breaks the thread for the sender. Leave the subject alone.

Re-quoting the whole chain

Twelve earlier messages under your three lines make the reader scroll to find out whether anything changed. Keep the part you answer.

Reply-all by habit

Nine people read an answer meant for one. Choose the recipients each time.

A warmer register than the sender used

Two exclamation marks back to a one-line formal query reads as odd. Match their formality.

Reply email generator FAQs

Is the reply email generator free?

Yes. Write reply emails without an account, within the per-email word allowance shown next to the composer. Signing in raises it, and Pro removes the guest limits and the ads. The pricing page lists what each plan includes.

What should a reply email include?

Subject: Leave it alone. Replying inside the thread keeps the conversation together in every mail client; changing the subject splits it. Opening: One line that acknowledges the email — thanks for the details, or confirming you have read it — and nothing warmer than the sender was. Body: Their points, in their order. If they asked three things, three short answers; if one needs more than a sentence, give it its own paragraph. The ask: If your reply needs something back — a confirmation, a file, a date — say so in its own line so it cannot be missed. Close: Match the sender's sign-off. Someone who wrote Hi Sam does not want Yours faithfully back.

What tone should a reply email use?

Professional for most work threads; Friendly when the sender was; Concise when the thread is long and the answer is short. Formal only if the incoming email was.

How long should a reply email be?

As long as their questions need and no longer. A one-question email gets a three-line reply; three questions get three short paragraphs.

Will the tool invent details for my reply email?

No. Names, dates, amounts, references and links come from your brief and are kept exactly; the tool is built not to add a promise, a policy, a deadline or a fact you did not give it. That is why the brief should carry the real details — the example on this page shows how little is needed.

Can I change the reply email after it is generated?

Yes. The subject line and the body are editable in the page, two alternative subject lines are one click away, and six one-tap refinements make the draft shorter, longer, friendlier, more formal, more direct or more polite without rewriting the brief. Copy it, open it in your mail app, or download it as Word, PDF or text.

Before you send

Check the draft's grammar, change its tone in one pass, or paraphrase a line that sounds like a template. One plan covers every tool.

Grammar checker Tone changer Paraphraser All purposes

Write a reply email

Email writers for other purposes

Each page opens the writer with that purpose already selected, shows a real draft the tool returned from a one-line brief, and explains what that kind of email has to do. The purpose menu above the brief covers all sixteen.

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