Free Word Checker for Confused Words, Spelling and Text Slang
Paste your text and spot words people often mix up, like affect and effect or its and it’s. Get the rule, an example and a one click fix.
- No sign up
- Runs in your browser
Your text
Results
Your results appear here.
Compare two words
Type one word to see its group, or two words to compare them side by side.
All word groups
Tap any group to open it.
Text slang decoder
Type an acronym or word, like WYD or FOMO, and see the meaning and tone.
Pick the right word
Ten quick questions. Choose the word that fits the sentence.
Paste your text
Add an email, essay or message. Nothing leaves your browser.
Review the flags
Red marks are likely mistakes. Yellow marks are words worth a second look.
Fix and learn
Tap a mark, read the rule and swap the word in one click.
Word checker questions
What does this word checker find?
It finds commonly confused words, frequent misspellings, wrong phrases like could of, and spelling style differences between US and UK English. It also explains each rule.
Is my text saved or sent anywhere?
No. The checker runs fully in your browser. Your text is never uploaded, stored or shared.
Why are some words highlighted yellow?
Yellow means the word is often mixed up with another one. The tool cannot always know your meaning, so read the rule and choose the right word yourself.
Can it replace a full grammar checker?
No. It focuses on word choice and spelling confusion, and it does not review grammar structure or style. Use it as a quick second check before you send or publish.
How do I switch between US and UK spelling?
Use the spelling style menu above the results. Pick US or UK, and the checker marks words in the other style and offers a one click fix.
What if my word pair is missing?
Send it through our contact page. We add new pairs often and write a full guide for the most requested ones.
Want the full story behind a word pair?
Read our plain English guides with examples and memory tricks.
Browse all guidesSuggest a word pair