AI Email Assistant for Gmail
Draft, reply, improve, and translate emails inside Gmail in seconds. The WriteMail Google Workspace add-on works on desktop and mobile — voice input, 35+ languages, free to install.
Installs in 30 seconds · Free forever plan · Works in Gmail on web and the Gmail mobile app
Everything you need to write better email, inside Gmail.
WriteMail's AI add-on lives inside Gmail — no copy-paste, no switching tabs. Compose, reply, improve, and translate without leaving your inbox, on desktop and mobile.
AI email writing
Describe what you want to say in a few words and WriteMail drafts a complete, well-structured email. Pick the tone — formal, friendly, concise, assertive — and insert it straight into your Gmail compose window.
Reply generation
Open a message and generate a context-aware reply from the thread you're reading. WriteMail understands what's being asked and drafts a response you only need to skim and send.
Email improvement
Already wrote a draft? Improve it in one click — fix grammar, sharpen the tone, shorten or expand, and make it sound more professional without rewriting from scratch.
Translation
Translate incoming threads or write your reply in any of 35+ languages — English, Spanish, German, French, Arabic, Japanese, and more — with native-grade tone, not word-for-word translation.
Voice-to-email
Speak naturally and WriteMail turns it into a clean, structured email. Hands-free drafting on desktop and mobile — perfect for replying while you're on the move.
Private by design
Your email content is processed only to generate the draft you asked for. WriteMail never trains models on your inbox, and data is encrypted in transit and at rest.
How the Gmail AI add-on works
Install from the Marketplace
One click from the Google Workspace Marketplace. No admin install required for personal Google accounts.
Open it inside Gmail
WriteMail appears in the Gmail side panel on the web and in the add-on menu inside the Gmail mobile app. Open it from any email or new message.
Generate & insert
Type or speak a prompt, pick tone and language, and drop the AI draft straight into your Gmail message — ready to review and send.
Using WriteMail in Gmail on desktop
The full step-by-step guide to installing and using the add-on in Gmail on your computer.
- 1
Install the add-on
Open the WriteMail listing on the Google Workspace Marketplace and click Install. Approve the Google permissions so WriteMail can read the email you're working on and insert drafts for you.
- 2
Open WriteMail in the side panel
Refresh Gmail. The WriteMail icon appears in the right-hand side panel. Click it to open the add-on next to your inbox — it stays available while you read and compose.
- 3
Generate or improve content
To write a new email, type a short prompt, pick a tone and language, and generate. To reply, open the message first so WriteMail has the thread context. To polish a draft you've already written, use Improve.
- 4
Insert into your email
Click Insert and the generated text drops straight into your Gmail compose window. Review, tweak anything you like, and send.
Using WriteMail in the Gmail mobile app
The add-on workflow on mobile isn't obvious the first time — here's exactly how to reach WriteMail while you read or reply on your phone.
- 1
Install once on desktop or mobile
Add-ons installed from the Google Workspace Marketplace are tied to your Google account, so once WriteMail is installed it's automatically available in the Gmail app on iOS and Android — no separate mobile install.
- 2
Open WriteMail while reading an email
Open any email in the Gmail app and tap the add-on icon at the bottom of the message (the puzzle-piece / add-ons row). Choose WriteMail to launch it over the thread you're reading.
- 3
Generate your reply or draft
Type or dictate what you want to say, pick the tone and language, and let WriteMail generate. On a reply, it uses the open thread as context just like it does on desktop.
- 4
Copy or insert into your message
Tap Insert to drop the draft into your reply, or copy it and paste it into a new email. Review on screen and send — all without leaving the Gmail app.
Why WriteMail vs Gemini & Smart Compose?
Google's built-in tools are handy. WriteMail is built end-to-end for email — and it's free.
Free forever
No Google Workspace Gemini add-on or paid AI subscription required. Install from the Marketplace and write for free, today.
35+ languages, equally fluent
Built for non-native speakers — no "English-first" tone slipping into your German, Spanish, or Arabic replies.
Voice-first drafting
Dictate full emails on desktop and mobile — not just short autocomplete suggestions while you type.
Single-purpose, polished
We do one thing: email. Faster replies, cleaner tone, and a UI that fits into your Gmail workflow — not a general chat assistant bolted on.
The Google Workspace AI email assistant, explained
A Google Workspace add-on for email is a tool that installs into your Google account and runs inside Gmail — using large language models to write, reply to, improve, and translate emails right where you read them. Unlike a standalone app, a Gmail add-on keeps you in your inbox: no copy-paste, no context switching, and no broken formatting when you send.
WriteMail is built specifically for that experience. It installs from the Google Workspace Marketplace in under 30 seconds, runs in Gmail on the web and inside the Gmail mobile app, and works for both personal Google accounts and Google Workspace organizations. It's used by 320,000+ professionals across 35+ languages — and it stays free for everyday use.
Gmail add-on vs Gemini
- ✓ Free vs paid: WriteMail has a free forever plan; Gemini for Workspace is a paid add-on.
- ✓ Language depth: 35+ languages with native-grade tone, not English-first translation.
- ✓ Voice-to-email: Dictate full emails, including in the Gmail mobile app.
- ✓ Email-specific: Tone controls and improvement tuned for email — not a general chat UI.
Free Gmail AI add-on alternatives
Most "free" Gmail AI add-ons cap you at a handful of drafts per day, lock translation or replies behind a paywall, or only support English. WriteMail gives you AI writing, replies, improvement, and 35+ languages on the free plan — no credit card required.
If you want unlimited usage and a shared tone library for your team, upgrade later. Otherwise, the free plan covers most professionals' day-to-day Gmail usage.
Why install today?
Gmail users spend hours a day on email. WriteMail's Gmail AI add-on cuts drafting and reply time dramatically, saving the average professional 5–8 hours per week. Free to install — there's no reason not to try it before your next reply.
Start writing emails in Gmail with AI — free.
Install the WriteMail add-on from the Google Workspace Marketplace. Takes 30 seconds. No credit card.
Add to Gmail — FreeFrequently Asked Questions
Everything you need to know about AI Email Assistant for Gmail
How do I install the WriteMail AI add-on for Gmail?
Open the WriteMail listing on the Google Workspace Marketplace and click "Install." Approve the Google permissions, then refresh Gmail — WriteMail appears in the right-hand side panel. Installation takes under 30 seconds and works for personal Google accounts. For Google Workspace organizations, an admin can install it for the whole domain from the Marketplace.
What permissions does the Gmail add-on need, and why?
WriteMail requests permission to read the email you currently have open (so it can use the thread as context) and to insert the generated draft into your message. It does not read your entire mailbox in the background. Your email content is used only to generate the draft you asked for and is never used to train AI models.
Does WriteMail work in the Gmail mobile app?
Yes. Because the add-on is tied to your Google account, it is automatically available in the Gmail app on iOS and Android once installed — no separate mobile install. Open an email, tap the add-ons icon at the bottom of the message, and choose WriteMail to generate a reply or draft, then insert or copy it into your email.
Is the AI email assistant for Gmail free?
Yes. WriteMail has a free forever plan with AI writing, reply generation, email improvement, voice input, and 35+ languages. Heavy users and teams who need unlimited generations and shared tone settings can upgrade to a paid plan, but the free plan covers most everyday Gmail usage.
Is WriteMail an alternative to Gemini for Gmail?
Yes. WriteMail is a free, email-specific alternative to Gemini for Google Workspace. Where Gemini is a paid, general-purpose assistant, WriteMail is built end-to-end for email, supports 35+ languages with native-grade tone, includes voice-to-email on desktop and mobile, and starts free.
What languages does the Gmail add-on support?
WriteMail supports 35+ languages including English, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Arabic, Hebrew, Japanese, Korean, Chinese (Simplified and Traditional), Indonesian, Vietnamese, Russian, Turkish, and more. Each language has native-grade tone — not just word-for-word translation.
Can I use it with a Google Workspace organization account?
Yes. WriteMail is Google Workspace Marketplace verified and works with both personal Google accounts and Google Workspace organizations. Admins can deploy it to specific users or the entire domain from the Marketplace.
The add-on isn't showing up in Gmail — how do I fix it?
First refresh Gmail or reload the page — newly installed add-ons usually appear after a refresh. If it still doesn't show, confirm you're signed into the same Google account you installed it with, check that the add-on wasn't disabled in Settings → Add-ons, and on mobile make sure your Gmail app is up to date. Re-installing from the Marketplace resolves most remaining issues.
Have more questions? Feel free to contact us!