Spelling Checker
Check your text for common English spelling mistakes. Works offline — no data sent anywhere.
About this spelling checker
This tool checks every word in your text against a dictionary of 25,000+ common English words, plus a curated list of frequently confused spellings. Unknown words are flagged with the closest correct suggestion. It runs entirely in your browser with no data transmitted.
No server, no API. All checking happens in JavaScript in your browser. Your text is never sent anywhere.
Checks against 25,000+ common English words and flags anything not recognised — not just a short fixed list.
For each misspelled word, the tool shows the correct spelling so you can learn and correct it.
Frequently asked questions
Why does this miss some of my spelling errors?
The tool checks against a 25,000-word common English dictionary. Very rare or technical words may not be in it, and the dictionary is US/UK English — so it cannot judge context (e.g. "their" vs "there", both correct spellings). For comprehensive grammar and context checking, use a word processor like MS Word, Google Docs, or Grammarly.
Is my text stored or sent anywhere?
No. All processing happens entirely in your browser using JavaScript. Your text is never transmitted to any server. This tool works completely offline after the page loads.
Why are some correctly spelled words being flagged?
The checker does simple word-by-word matching and does not understand context. Proper nouns, technical terms, or abbreviations may incorrectly match misspelling patterns. Use your judgment for flagged words.
What are the most commonly misspelled words?
The most frequently misspelled English words include: accommodate, occurrence, separate, definitely, embarrass, necessary, receive, acknowledge, believe, and beginning. These appear in our dictionary and many more.
How can I improve my spelling long-term?
Practice active reading, keep a personal list of words you frequently misspell, use mnemonics (e.g., "I before E except after C"), and write regularly. Flashcards (see our Flashcard Maker) are excellent for memorising correct spellings.