Spell checker and grammar checker online
Paste your text (up to 8,000 characters) and common typing mistakes show up right away. Click Check to run the full spelling and grammar review. You can accept each suggestion or apply them all at once. It's free, there's no sign-up, and Outilix does not save your text.
- ✅ Free
- 🔒 No sign-up
- 📱 Works on mobile
- ⚡ Instant results
🔒 Everything runs in your browser. Your data and files never leave your device.
What the spell checker looks for
Checking happens in two steps:
- While you type, quick rules run in your browser: double spaces, repeated words, a space before a comma, a missing space after a period, a lowercase letter starting a sentence, a lowercase "i", "could of" instead of "could have", and a list of very common misspellings ("definately", "recieve", "alot").
- When you click Check, a full grammar checker reviews spelling, grammar, verb agreement, commonly confused words (their/there/they're, its/it's, your/you're) and style.
Each issue comes with an explanation, an excerpt from your text and one-click fixes. Your browser also underlines unknown words as you type.
Common mistakes in American English
| Mistake | Correct | Tip |
|---|---|---|
| alot | a lot | Always two words |
| could of | could have | It sounds like "of" because of the contraction could've |
| your welcome | you're welcome | Say it out loud as "you are welcome" |
| its / it's | its tail / it's raining | it's always means "it is" or "it has" |
| their / there / they're | their car / over there / they're late | Possession, place, "they are" |
| recieve | receive | I before E, except after C |
Limits and privacy
- Size: 8,000 characters per check, roughly 1,300 words. Split longer texts.
- Quota: about 40 checks every 10 minutes per connection.
- Accuracy: an automatic checker doesn't understand everything. Always proofread, especially names, technical terms and wordplay.
- Privacy: the quick rules stay in your browser. For the full review, your text is passed to a grammar-checking service while it is analyzed, and Outilix doesn't save it. Avoid pasting highly sensitive information.
3 real-life examples
An email to proofread before sending
You write "Hello,I wanted to know if you received my application". The checker flags the missing space after the comma. You fix it in one click, then run the full review for grammar.
A sentence from an essay
"I could of finished the draft yesterday." The tool flags "could of" and suggests "could have". It also catches a lowercase "i" in "i think so".
Text copied from a chat
Your text has "Why not" with two spaces and "Great ,thanks" with a space before the comma. The tool finds both and proposes the clean version.