Free Spell Checker

Find misspelled US English words as you type, review the suggestions, and fix every match with one click.

Free to useNo sign-up requiredRuns entirely in your browser
0 / 10,000

Checks US English spelling in your browser.

Saved words stay in this browser until you remove them or clear site data.

Free from the team behind Typeahead. The autocomplete for your whole Mac.

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What is a spell checker?

A spell checker reviews each word in a passage against a language dictionary, marks words it does not recognize, and suggests nearby spellings. It helps you catch typos without changing the rest of your draft. Because names, brands, and specialist terms vary, the writer still decides which suggestions belong.

A useful check, not an automatic edit.

This tool uses a Hunspell-compatible spelling engine and an English dictionary to identify unrecognized words and generate nearby suggestions. The engine handles the comparison; you decide whether each correction fits the sentence.

Source: nspell, Hunspell-like spell checker

Where it matters

Emails, essays, reports, applications, project updates, articles, notes, and any draft where a small typo could distract from the point.

What the Spell Checker does

Checks US English words as you type, groups repeated issues, accepts suggested or custom replacements, and lets you manage words you do not want flagged again.

Check spelling as you write.

Add your text

Paste a draft or keep writing directly in the editor.

Review the underlines

See unrecognized words marked as the suggestions update live.

Choose each correction

Use a suggestion, enter your own replacement, or save an intentional spelling so it is not flagged again.

What a dictionary check can do.

It is quick and exact about spelling, and it knows nothing about meaning. Both halves are worth knowing before you rely on it.

Catch the typo

Live underlines keep small spelling errors visible while the sentence is still fresh.

Fix every match

The same misspelling is grouped, so one click corrects it everywhere in the text.

Teach it your words

Save names, brands, and jargon so they stop being flagged in this browser.

Know its blind spot

A real word in the wrong place, like “form” for “from”, passes any dictionary check.

Finish the thought while it is fresh.

The fewer characters you type, the fewer you can mistype. Typeahead is a Mac app that offers the rest of the word and the next few after it as grey inline text. Press Tab and they are in.

Fewer keystrokes, fewer chances to slip. It works in any Mac app with a text field and runs entirely on your Mac.

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Common questions.

A spell checker compares the words in a passage with a language dictionary. It marks words it does not recognize and offers nearby spellings that may fit, leaving the final choice to you.

Paste or type your text in the editor. Open a misspelled word in the Suggestions panel, then choose a suggested spelling or enter your own replacement. You can ignore the word for now or choose ‘Don’t flag this word again’ to save it for future visits on this browser.

The tool currently checks US English spelling. It may mark valid spellings from other English varieties, names, brands, abbreviations, and specialist terms for review.

No. This tool focuses on spelling. It does not judge sentence structure, punctuation, tone, or whether a correctly spelled word is the right word for the sentence.

Because “form” is a real word. A spell checker only compares each word with a dictionary, so it cannot tell that a correctly spelled word is the wrong one. Our Grammar Checker catches a set of commonly confused pairs, such as their and there.

Yes. Choose ‘Don’t flag this word again’ and the word is saved in this browser, up to 500 words. You can review and remove saved words at any time, and clearing the site’s browser data clears the list.

It costs nothing and needs no sign-up. The dictionary is downloaded to your browser and the check runs there, so your text is not sent to a server. Saved words live in this browser’s local storage only.

Write the sentence before you check it.

Typeahead finishes words and sentences for you in every Mac app, so there are fewer typos to find afterward.

Get Typeahead — $79

Mac only. One-time purchase. Runs offline.