Grammar as you type,
humanize as you work.
One extension for both jobs, in every text box on the web. Spelling, grammar and style get underlined while you write. Select any draft and it comes back reading like a person, right where you wrote it. Free to install, and the writing checks run before you even sign in.
Works in Chrome, Edge, Brave and Arc.
I wanted to reach out and touch base regarding the quarterly figures.
Style
“regarding”
aboutThe same humanizer, already proven
The same engine as our website, iOS and Android apps. Thousands of five-star ratings and the top spot on HumanizerBench.
6,583 five-star reviews on Google Play
91.2% rate WriteHuman 4 stars or higher.
100K+ downloads
188 ratings on the App Store
#1 AI humanizer
August 2026 HumanizerBench
a public monthly benchmark of 12 leading AI humanizers
7.5M+
documents humanized
97.5%
average human score
“It generates the text so perfectly even a human won’t question it”
Umeh C.Google Play
“It’s great. That’s what I need as a blogger.”
Ogu N.Google Play
“In my corporate world, it helps me a lot in generating my proposals, presentations, and even my short speech in just a minute. I now find it a big help in my job, and this really made everything easy for me.”
ChieianskyApp Store
It works in the box you are already typing in
WriteHuman attaches to any real text box on any site. Here is where people put it to work most.
Gmail
Tidy a reply before you send it, or drop a whole AI-drafted email into a voice that sounds like you. WriteHuman also hides Gmail’s own duplicate underlines so you are not reading two sets of squiggles.
Outlook on the web
Purpose-built handling, including quieting the Microsoft Editor overlay so the two checkers do not fight over the same sentence.
Posts, comments and connection notes. Long-form drafts written with AI are the obvious use, but the writing checks run on everything you type.
Notion
Docs, wiki pages and database notes. WriteHuman attaches to the same rich editor Notion uses, so suggestions land inline rather than in a side window.
Slack
Message composer and canvases. Useful for the long update you rewrote three times before posting it to the wrong channel.
X
The composer, replies and drafts. Short text is where a stiff AI cadence shows up fastest.
WordPress and most CMSes
Block editors, classic editors and plain textareas alike. Draft a post, clean it up and publish without opening another tab.
Anywhere else you type
WriteHuman attaches to any real text box on any site. Support is the default, so the app you use every day is already covered.
Two jobs. One extension.
Most humanizers give you a popup to paste into. This one lives in the field you are already typing in, and it checks your writing the rest of the time.
Writing checks, as you type
Spelling, grammar and style are underlined in the field itself, each in its own colour. Hover any underline for the fix, or add the word to your personal dictionary so it never gets flagged again. This part works before you sign in.
- Personal dictionary, synced with your account
- Silences Gmail and Outlook duplicate squiggles
Humanizing, in the box you wrote in
Select a passage or leave it unselected to take the whole field. The rewrite comes back with a human score, and Replace text drops it straight back into the page. No new tab, no copy-paste round trip.
It is imperative that we leverage our core competencies.
The thing that matters is playing to what we are already good at.
- Selection or whole field, your choice
- Same account and same credits as the web app
Three steps, and one of them is doing nothing
Add it to Chrome
One click from the Chrome Web Store, then pin it so it is reachable from the toolbar. Nothing to configure.
Write exactly like normal
Nothing about how you work changes. Open Gmail, open Notion, start typing. Suggestions appear underneath the words they belong to, and you can ignore every one of them.
Fix or humanize in place
Click an underline to take the fix. Or open the panel, humanize the selection, and press Replace text to drop the rewrite straight back into the page.
Already installed? Connect your account
One account. Everywhere you write.
The extension is not a separate product with a separate bill. It draws on the plan you already have, alongside every other way to reach the humanizer.
A checker that reads what you type should say what it does
The text in the field you are working in goes to WriteHuman over HTTPS to be checked or rewritten. Nothing else does.
It cannot reach a password field
WriteHuman only attaches to multi-line text boxes and rich editors. Single-line inputs, which is what passwords, card numbers and search boxes are, are never touched. That is a property of how it attaches, not a blocklist somebody has to maintain.
Off switches that actually exist
Turn it off entirely, turn it off for one site, or pause it for 30, 60 or 120 minutes or until tomorrow. Hide the floating button on a site and keep the checks. All from the toolbar popup.
Your dictionary is yours
Names, jargon and deliberate spellings go into a personal dictionary that syncs with your account, so a word you stop flagging on one machine stays unflagged on the next.
The full detail is in the privacy policy.
Before you install it
Is the extension free?
Installing it is free, and the spelling, grammar and style checks run without an account at all, so you can see it working before signing up. Humanizing needs a WriteHuman account because it draws on the same plan and credits as the website. There is no separate extension subscription and no separate extension wallet.
Does it work in Google Docs?
Not currently. Google Docs draws your text onto a canvas element instead of laying it out as editable text, so there is nothing on the page for any extension to underline or replace. Gmail, Outlook, Notion, LinkedIn, Slack and the rest all work normally.
Which browsers are supported?
Chrome, and the Chromium browsers that install Chrome Web Store extensions: Edge, Brave and Arc.
Can it read my passwords or card details?
No. The extension attaches only to multi-line text boxes and rich editors. It never attaches to a single-line input field, which is what passwords, card numbers, usernames and search boxes are, so those are structurally out of reach rather than filtered out by a rule that could be misconfigured. Fields marked read-only and search roles are skipped too.
Can I turn it off on a particular site?
Yes, and it is one click from the toolbar popup. There is a master on/off switch, a per-site switch for the site you are on, and a pause option for 30, 60 or 120 minutes or until tomorrow. You can also hide the floating button on any site while leaving the checks running.
Does it work in Incognito?
Only if you allow it. Chrome disables every extension in Incognito windows by default. If you want it there, open chrome://extensions, find WriteHuman, and turn on "Allow in Incognito".
Do I need a separate subscription for the extension?
No. Sign in once and the extension uses the same account, the same plan and the same credits as writehuman.ai. Your personal dictionary syncs with your account too, so words you added on one machine are already there on the next.
Which languages does it check?
The extension checks English. It detects the language of what you are writing and stays out of the way on everything else. The humanizer on the website covers 40+ languages.
I installed it but nothing is happening.
Two things fix almost every case. First, reload any tab you already had open before installing, because a page loaded before the extension existed has no extension in it. Second, click the puzzle-piece icon in the Chrome toolbar and pin WriteHuman so you can reach the panel. If it is still quiet, check that the site is not switched off in the popup.
Put it in the tab you already have open
Free to install, and the writing checks start working before you sign in. The humanizer is there the moment you connect your account.