PreenerGrammar checker and corrector
Fix spelling, grammar and punctuation. Keep your words.
Free to start. Works on Android, in Chrome and on the web.
- Light touch
- Standard
- Polish
- US English
- UK English
How it works
Paste your text
Anything from a quick text to an email or a long document.
Choose how much
Light touch fixes only clear mistakes. Standard also fixes awkward grammar, and Polish smooths clunky phrasing. Pick US or UK spelling.
Check it and copy
Tap Keep my wording, Punctuation only or Keep my slang to adjust the fixes, then copy the clean version.
An example
Hi Mrs Patel, i wanted to let you know that me and Jordan wont be able to make it too the meeting on thursday, their is a conflict with are exam schedule. could we reschedule for next week, any day after tuesday works for us
Hi Mrs. Patel, I wanted to let you know that Jordan and I won't be able to make it to the meeting on Thursday. There is a conflict with our exam schedule. Could we reschedule for next week? Any day after Tuesday works for us.
Then make it yours
- Keep my wording
- Punctuation only
- Clearer sentences
- Keep my slang
- Try again
More quick edits
See all 107 writing tools- CasualSound relaxed and natural, like texting a friend.
- HumanizeMake AI-sounding text sound like a real person wrote it.
- ProfessionalMake your text polished and ready for work.
- FormalRewrite for official letters, requests and documents.
- FriendlyMake your text warmer and more approachable.
- ShortenCut the filler and keep what matters.
Questions, answered
Is it free?
Yes. The free plan gives you AI help every day, and Pro gives you about 10,000 AI actions a month. You sign in with Google or a code we email you, so your work follows you to every device.
Will it sound like AI?
It fixes the mistakes and leaves everything else alone, so the result reads like you typed it carefully. Your slang, names and sentence order stay as they were unless they were actually wrong.
Can I use it on my phone?
Yes. Install the Preener keyboard for Android and open Fix grammar from the keyboard in any app. Your account also works in Chrome and on the web.