A free set of tools from Zentor
Free AI email tools
Ten small writers, one for each kind of email you send most. Paste what you have, generate a draft and copy it. Free to use.
What do you need to write?
You type
Email to my manager Dana asking to move the Q3 report deadline from Friday to next Wednesday. The finance numbers arrived three days late. Offer to send a partial draft Friday.
You ask: Professional tone. Offer the partial draft.
Hi Dana, I'd like to ask for a few more days on the Q3 report. The finance numbers reached me three days later than planned, and I don't want to send you something built on half-checked figures. Could we move the deadline from this Friday to next Wednesday? I can still send you a partial draft on Friday so you can see the structure and flag anything early. If Wednesday causes a problem on your side, tell me and I'll find another way. Thanks, [your name]
Sam wrote
Hi, are you still good for our call tomorrow at 2pm? I want to go over the proposal draft and the timeline for next quarter. Let me know! — Sam
You ask: Say yes, but move it to Thursday, same time.
Hi Sam, Still on for the call — but could we move it to Thursday at 2pm instead? Something came up on my end tomorrow. Same agenda works for me: proposal draft and next quarter's timeline. I'll read through the draft tonight so we can use the time well. If Thursday doesn't work, I'm also free Friday morning. Just let me know. Best, [your name]
you (rough draft) wrote
Hi Mark, you still haven't sent me the files. I need them today or the launch slips again. This is the third time I'm asking.
You ask: Same meaning, friendly tone.
Hi Mark, Just circling back on the files — do you think you could get them to me today? The launch date depends on them, so the sooner I have them the safer we are. Let me know if anything's blocking on your end. Thanks! [your name]
You type
As I said in my last two emails, I still need the signed form. I can't do anything until you send it. Please send it today.
You ask: Professional tone.
Reads as irritated. "As I said in my last two emails" tells the reader they are being blamed, and "Please send it today" lands as an order.
Hi [name], I'm still missing the signed form, and I can't move this forward without it. Could you send it over today? If something is holding it up on your side, let me know and I'll help sort it out. Thanks, [your name]
You type
Demoed our reporting tool to the ops team at Northwind last Thursday. They said they'd discuss internally. No reply in a week.
You ask: Professional tone; it's been a week.
Hi [name], Following up on our demo last Thursday — I know internal discussions take time, so no pressure. To make the decision easier: if it helps, I can put together a short summary of how the reporting setup would work for your team specifically, or answer questions on a quick call. Is this still on your radar for this quarter? Best, [your name]
You type
Monthly newsletter for ecommerce store owners. This issue covers reducing cart abandonment, with three case studies.
- Why 7 in 10 carts never check out
- The checkout fixes three stores tested
- Cart abandonment, explained with receipts
- This month's read for [store name]
- What would 10% more checkouts be worth?
You type
Freelance designer helping Shopify stores improve product pages. Recently simplified a skincare brand's PDP and lifted their add-to-cart rate.
You ask: Founder of a mid-size Shopify skincare brand — friendly tone.
Hi [first name], I was looking at [company]'s store — the brand photography is genuinely good, and the PDP layout caught my eye because it's doing your images a disservice. Most Shopify stores lose buyers on the product page: too much text, the add-to-cart buried below the fold. I redesign product pages for stores like yours — recently simplified a skincare brand's PDP and their add-to-cart rate went up. Want me to send over two quick things I'd change on yours? No call needed. [your name]
You type
Scheduling software for physiotherapy clinics. The lead, Marcus at Northside Physio, downloaded our no-show guide last week. Clinics using us cut no-shows by about a third.
You ask: Goal: book a 15-minute demo.
Hi Marcus, Thanks for downloading our no-show guide last week. I hope it was useful for Northside Physio. The guide covers what clinics can change by hand. The scheduling software does the same things automatically: reminders, easy rebooking, a waitlist that fills gaps. Clinics using it cut no-shows by about a third. Would a 15-minute demo be worth your time? I can show you how it would look with your own appointment types. Best, [your name]
You type
1) Calendar sync with Google and Outlook is live. 2) Mobile app loads about twice as fast. 3) We're hiring a support lead. 4) Office closed Dec 24 to Jan 1.
You ask: For customers. Friendly tone.
Hi [first name], Here's what's new this month. Calendar sync is live You can now connect Google Calendar or Outlook, and your bookings will appear there automatically. Turn it on under Settings. The mobile app is about twice as fast We rebuilt how the app loads your schedule. Opening it should now take roughly half the time. We're hiring a support lead If you know someone who is patient, clear and good with people, send them our way: [link] Holiday hours Our office is closed from December 24 to January 1. Support replies will be slower that week. Thanks for being with us, [your name]
You type
On holiday Aug 4 to Aug 15, back Aug 18. No email access. Urgent things go to Lena Ortiz, lena@company.com.
You ask: Professional tone.
Hello, Thank you for your email. I am out of the office from August 4 to August 15 and will not be checking email. I will be back on August 18. If your message is urgent, please contact Lena Ortiz at lena@company.com. Otherwise, I will reply when I return. Best regards, [your name]
All ten tools
- Free AI email writer Say who the email is for and what it needs to cover. Get a subject line and a full draft you can edit and send.
- Rewrite your email with AI Paste your rough draft and get a cleaner, tighter version back. Same meaning, better tone. Free email rewriter.
- Free AI email reply generator Paste the email sitting in your inbox, tell us what you want to say, and get a reply you can send. Free.
- Free email subject line generator Describe your email in a sentence or two and get five subject lines in five different styles. Free.
- Free email tone checker Paste an email before you send it. See how it reads to the other person, and get it back in the tone you meant.
- Free follow up email generator You sent the email. They didn't reply. Describe the situation, get a follow-up that's polite, short and easy to answer.
- Free AI sales email generator Say what you sell, who you're writing to and what you want them to do next. Get a subject line and a sales email short enough to be read.
- Free AI cold email generator Describe who you are, who you're writing to, and what you're offering. Get a first-touch email short enough to actually get read.
- Free AI newsletter generator List what this issue needs to cover and who reads it. Get a subject line and a newsletter draft that's quick to scan.
- Free out of office message generator Say when you're away, when you're back and who covers for you. Get an auto-reply that answers the questions people actually have.
Which AI email tool to use
Each tool is built for one situation and asks only for what that situation needs. Find yours in the list:
- You are starting from nothing.
- Use the AI email writer. Describe who it is for and what you need, and get a subject line and a full draft.
- Someone emailed you and it needs an answer.
- Use the email reply generator. Paste their email, say what you want to tell them, and it answers every point they raised.
- You wrote a draft and it reads badly.
- Use the email rewriter. It keeps your facts and requests and fixes the wording and tone.
- The wording is fine but the mood is off.
- Use the email tone checker. It tells you how the email will read, then adjusts it to the tone you meant.
- They never replied.
- Use the follow up email generator. Say what you asked for and when, and get a short nudge that is easy to answer.
- The email is written and needs a subject.
- Use the email subject line generator. Five subject lines in five styles, so you choose between angles.
- You are writing to a stranger.
- Use the cold email generator. A first-touch email with a specific opener, one offer and a small ask.
- You are writing to a lead or a customer.
- Use the sales email generator. Demo requests, win-backs and renewals, with one clear next step.
- You have several things to tell a whole list.
- Use the newsletter generator. List the items and it writes a subject line and an issue that is quick to scan.
- You are about to be away.
- Use the out of office message generator. An auto-reply that says when you are back and who covers for you.
How the free AI email tools work
Every page has the same three parts. A form with labelled boxes for the details that kind of email needs. Three worked examples you can load into the form with one click, so you can see what a good input looks like. And the result, laid out as an email with a subject line and a body.
The drafts are short on purpose, and they only use what you gave them. If a name, a date or a figure is missing, you get a bracketed placeholder like [date] where it belongs. Nothing is invented to make the email sound better.
When a free tool stops being enough
These tools write one email at a time, and you still have to notice that it needs writing. If the real cost is the whole inbox, Zentor's AI email assistant connects to Gmail, drafts replies and follow-ups in your voice for the threads that need them, and holds each one for your approval.
Questions
Are these AI email tools free?
Yes, all ten are free to use. Generate opens Zentor, where you sign in or start a free trial and the draft is written for you.
Do I need to sign up?
Yes. Generate hands off to Zentor, where you sign in or start a free trial and the draft is written for you.
Which tool should I start with?
If you are answering someone, the email reply generator. If you are writing from scratch, the AI email writer. If you already have a draft, the email rewriter or the tone checker.
Do the tools send email for me?
No. Each tool writes a draft that you copy and send yourself. Zentor's AI email assistant works inside Gmail and can prepare drafts there, and it also waits for your approval before anything is sent.
Will the drafts make up facts?
They are instructed not to. Where a name, date or number is missing, the draft leaves a bracketed placeholder such as [date] for you to fill in.
Why ten separate tools instead of one?
Each kind of email needs different information. A reply needs the email you received, a follow-up needs what you asked and when, a newsletter needs a list of items. Separate tools ask for exactly that and nothing else.