01
Spelling
Spell it the way it sounds
Pebble understands words spelled the way they sound, so “fizics” finds “physics” and “nolij” finds “knowledge”. It also offers to finish the word you're typing.
Press 1 to put it in
Spelling, grammar and rewrites, right at your cursor.
Spelling and grammar help while you type on any site, plus AI rewrites on a held key.
Pebble works in Chrome and other Chromium browsers such as Edge and Brave.
Press 1 to put in “receive”
- Spelling and grammar
- On your computer
- Sent for spelling
- Nothing
- AI rewrites
- Your own account
- Price
- Free
Features
02
Grammar
Catch the slips you missed
Misspelled words get a line under them, and so do grammar slips in English, like “their is” or “he go”. Point at one, or move the caret into it, and the fixes open right there.
Press 1 to put in “their”
03
Rewrites
Hold Alt and pick a version
Pebble rewrites what you've written: fixed spelling, grammar and punctuation, in your own voice. When there's more than one good way to say it, you get up to three versions with the changed words marked.
Press 1 to use the first
04
Instructions
Or say what you want
Tap Alt and type an instruction: shorter, friendlier, more formal, or “write a thank-you note” in an empty box. Styles tell Pebble how you like to write.
The shorter version appears, the changed words marked
Keyboard
Every action has a key
You can change the main ones, including the key you hold for rewrites. To turn Pebble off for a site, use its button in the toolbar.
| Tab | Pick a suggestion |
|---|---|
| Enter | Put it in |
| 1to4 | Choose a suggestion by its number |
| Space | Take it and keep typing |
| EscthenEsc | Teach Pebble a word it doesn't know |
| Hold Alt | Rewrite what you've written |
| Tap Alt | Say what you want first: shorter, friendlier, more formal |
How it works
Add it, then type as you always do
- 01
Add Pebble to Chrome
Install it from the Chrome Web Store, then type in any text box on any site.
- 02
Type as you always do
Suggestions appear under the word you're typing. Tab picks one, Enter puts it in, or press its number.
- 03
Hold Alt for a rewrite
Sign in with ChatGPT or paste an OpenRouter key in settings, then hold Alt (Option on a Mac) in a text box.
Stays on your computer
- Spelling and grammar checks, even offline
- Your settings, words, Styles and Snippets
Sent only when you ask
- The text you ask to rewrite, to the AI account you chose
- Your instruction, and the page's title and site name, with it
- Nothing at all until you hold or tap the key
Pricing
Free, with an optional Pro
Free
$0
- Spelling suggestions as you type
- Spelling and grammar underlines
- AI rewrites with your own ChatGPT or OpenRouter account
- 2 Styles
- 3 Snippets (type ;name for an address, a sign-off or a link you use a lot)
Pebble Pro
$4.99once, not a subscription
Get Pro for $4.99(opens Polar's checkout in a new tab)- A Style for each site, like casual for chat and polished for email
- Unlimited Styles
- Spelling help in 18 more languages, like Spanish, French and German
- Unlimited Snippets
- Sync of your words, Styles and Snippets to every Chrome you sign in to, through your Google account
- 1 Choose Get Pro here, or on Pebble's Pro page inside the extension.
- 2 Pay on Polar's checkout page. Polar (polar.sh) handles the payment.
- 3 Polar emails you a license key. Paste it into Pebble's Pro page to turn Pro on.
Is Pebble free?
Yes. Spelling, grammar and AI rewrites are free, with 2 Styles and 3 Snippets. Pebble Pro is an optional extra.
Is Pebble Pro a subscription?
No. Pebble Pro is one payment of $4.99. You buy it inside Pebble, pay on Polar's checkout page, and Polar emails you a license key to paste into Pebble.
What does Pebble send, and where?
Spelling and grammar never send anything: both are checked inside Pebble, on your computer. Only when you hold or tap the rewrite key do the text in the field (or your selection), any instruction you typed, and the page's title and site name go to the AI provider you chose. Pebble has no server, no analytics and no tracking.
Do I need an AI account?
Only for rewrites. Sign in with ChatGPT, or paste an OpenRouter key and pick a model. Pebble doesn't sell AI: rewrites run on your own account. Spelling and grammar work without one.
Where does Pebble work?
In the box you're already typing in, on any site: emails, chats, comments, docs and forms. To turn Pebble off for a site, use its button in the Chrome toolbar.
Which languages does it know?
English spelling and grammar, in American, British, Australian, Canadian or Indian English, and you can turn grammar off. Pebble Pro adds spelling help in 18 more languages, like Spanish, French and German.
What are Styles and Snippets?
Styles tell Pebble how you like to write, like casual or formal; switch between them with Tab while you type an instruction. Snippets put in text you use a lot when you type ;name: an address, a sign-off or a link.
Try it in the next box you type in.
Free to use. Pro is $4.99, once, if you want it.
Pebble works in Chrome and other Chromium browsers such as Edge and Brave.
- Spelling and grammar
- On your computer
- Sent for spelling
- Nothing
- AI rewrites
- Your own account