Spell checker & typo fixer
Catch spelling mistakes as you type, and fix common typos in one click. Nothing is uploaded — it uses your browser's own dictionary.
How the spell checker works
The text box has live spell-checking turned on, so your browser underlines misspelled words using its full built-in dictionary as you type. Right-click any underlined word for correction suggestions — these come from the same engine your operating system uses across every app, so they're as accurate as your system's own spell check.
On top of that, the Fix common typos button instantly corrects a curated list of the most frequent English misspellings — teh → the, recieve → receive, definately → definitely and dozens more — without touching anything else. Because it only changes known misspellings, it won't introduce false corrections.
Private by design
The big advantage of a browser-based checker is privacy: because everything runs locally, the text you paste is never uploaded the way it would be with many online proofreading tools. That makes it a safe place to check a sensitive email or an unpublished draft. One thing to keep in mind — a spell checker flags words that aren't in the dictionary, so it catches typos well but won't catch a correctly-spelled wrong word ("their" for "there") or grammar issues. For length, the word counter pairs nicely; for case and formatting, the text transformer does the rest.
Why this uses your browser rather than a server
Spell checking is built into every modern browser, backed by the dictionary of your chosen language, and it runs locally. Leaning on it means the suggestions match the ones you already see everywhere else on your system, they cover the language you have installed, and — the part that matters most — your text never leaves the device.
That is a genuine difference from most online spell checkers, which upload whatever you paste to a server for analysis. For anything confidential — a contract, an unpublished announcement, medical or legal text, an internal memo — that upload is the risk, not the typos.
What a spell checker cannot catch
A dictionary check only asks whether a word exists, never whether it is the right one. Every word in "their going to except the complement" is spelled correctly, and every one is wrong.
- Homophone swaps — their/there/they're, your/you're, its/it's, affect/effect, then/than.
- Real-word typos — "form" for "from", "now" for "not", "casual" for "causal". These are the most dangerous, because they change meaning while passing every check.
- Missing or doubled small words — a dropped "not" reverses a sentence entirely and no spell checker will object.
- Names and jargon flagged as errors simply because they are absent from the dictionary.
The practical defence is to read the text once more after the checker is happy, ideally aloud or after a break, since fresh eyes catch what the dictionary structurally cannot.
Dictionaries, variants and proper nouns
British and American spellings are both correct in their own variant, so "organise" and "organize" will each be flagged under the wrong dictionary. If a document is being marked or published to a particular standard, set your browser or system language to match rather than fighting individual suggestions — and stay consistent, because mixing variants in one document reads as carelessness.
Names, product names, technical terms and abbreviations get flagged constantly because they are not in any general dictionary. Adding them to your personal dictionary stops the noise, but do it deliberately: adding a genuine misspelling makes the checker silently accept that error everywhere from then on. For related tidying, the text transformer and the title case converter handle capitalisation.