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Spell Checker

Tighten your writing before you publish it.

Writing ToolsFreeRuns in your browser
Interactive spell checkerRuns in your browser, nothing uploadedFree, no account

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Overview

What is the Spell Checker?

This spell checker scans your text against a bundled dictionary of the most common English misspellings and flags every match, with a one-click fix for each. Paste in a draft and it checks every word token as you type — no account, no upload, no waiting for a server round trip. It is built for the specific job of catching typos like "recieve", "definately" or "accomodate" before you publish, not for judging grammar or sentence style. If a word is spelled correctly but used wrong — "there" instead of "their" — this tool will not catch it, because that is not a spelling error; the Online Proofreader checks for exactly that kind of mix-up.

The dictionary behind this checker is a deliberately curated list of the misspellings people actually make most often — transposed letters ("teh"), doubled or missing consonants ("occured", "recieve"), and common typing shortcuts ("dont", "wat"). It is not a full lexicon lookup against every valid English word, so a rare but correctly spelled word will never be falsely flagged, and an unusual misspelling that is not on the list will pass through unnoticed. That trade-off is intentional: fewer false alarms, at the cost of not catching everything.

Benefits

Why use a free spell checker?

Built for spelling only

Findings are filtered to spelling matches alone, so you are not wading through punctuation or sentence-length notes to find the actual typos.

One-click fixes, or fix everything at once

Each flagged word comes with the corrected spelling. Replace one at a time, or use "Fix all" to apply every suggestion in a single pass.

Context shown for every match

Each result shows the flagged word inside the surrounding sentence, so you can confirm it is really a typo before applying the fix.

No false alarms on unusual but correct words

Because matching is against a specific misspelling list rather than "is this a valid dictionary word", proper nouns, brand names and technical terms are never wrongly flagged.

Runs entirely in your browser

Text is checked against the bundled dictionary locally — nothing is uploaded to a server, so drafts under NDA or embargo stay private.

Guide

How do you use the Spell Checker?

  1. 1

    Paste your text

    Drop in an article, email or any draft. Checking starts automatically as you type, with a short debounce so it does not re-scan on every keystroke.

  2. 2

    Review the flagged words

    Each result shows the misspelled word in context, plus a plain-English note explaining what it looks like a typo for.

  3. 3

    Fix individually or all at once

    Click "Replace with…" on a single word, or use "Fix all" to apply every suggested correction to the text in one go.

  4. 4

    Copy the corrected text

    Once you are happy with the result, copy the cleaned-up text directly from the tool.

Examples

What does it look like in practice?

Common transposed letters

Input

Please recieve the package and confirm.

Result

Please receive the package and confirm.

"recieve" is one of the most common English misspellings — the "i before e" rule reversed. It is in the bundled dictionary, so it is flagged and fixed in one click.

A doubled-consonant typo

Input

The meeting was cancelled becuase of the storm.

Result

The meeting was cancelled because of the storm.

"becuase" is a letter-transposition typo, distinct from a grammar issue — the word itself just has two letters swapped.

A word this checker will not catch

Input

Their going to the store later.

Result

No spelling issue flagged.

"Their" is spelled correctly — it is just the wrong word for this sentence (it should be "They're"). That is a wording mix-up, not a misspelling, so it is out of scope here; check it with the Online Proofreader instead.

Accuracy

How accurate is it?

Matching is exact-word lookup against a bundled list of roughly 150 common English misspellings and their corrections, so every flagged word is a genuine dictionary hit — not a probabilistic guess. The "accuracy" percentage shown in the tool is simply (words checked − flagged words) ÷ words checked; it describes how much of your text had no dictionary hit, not a scientifically validated spelling-quality score.

  • Matching is case-aware: "Recieve" is corrected to "Receive" and "recieve" to "receive".
  • The dictionary targets frequent English typos, not every possible misspelling — an obscure or unusual misspelling not on the list will not be flagged.
  • Proper nouns, brand names, technical jargon and non-English words are never falsely flagged, because the checker only matches against its known-misspelling list rather than testing whether a word exists in a general dictionary.
  • This tool does not check grammar, sentence structure or word choice — a correctly spelled wrong word (their/there, affect/effect) will pass through untouched.
Details

What should you know before using it?

What this tool is, where it runs and what it costs — the facts people usually check before trusting a free tool with their work.

DetailSpell Checker
CategoryWriting ToolsOne of 12 tools in this category.
Where it runsEntirely in your browserYour input is never transmitted. Verify it yourself in the Network tab of your browser DevTools.
PriceFreeNo account, no trial, no usage cap, no paid tier.
Works offlineYes, once the page has loaded
Also known asfree spell checker, spell checker online, online spell checkerOther names people search for this by.
Applications

When should you use a spell checker?

Because the spell checker runs entirely in your browser, it suits work you would not want to hand to a third-party server — client files, unpublished drafts, anything under an NDA. These are the situations people reach for it in most often.

Pre-publish blog and email checks

Run a final pass over a draft before it goes out — catching a typo after a newsletter has been sent to a list is far more costly than catching it here.

Student essays and assignments

Clear the obvious typos before a teacher or reviewer sees the draft, so feedback can focus on the actual argument rather than spelling slips.

Non-native English writing

Common transposition and doubled-letter typos are frequent regardless of first language — a quick scan catches the mechanical slips separate from any grammar concerns.

Cleaning up pasted or dictated text

Text pulled from voice dictation or OCR often introduces typos that a spelling pass catches quickly before further editing.

FAQs

Frequently asked questions

How does this spell checker work?
It scans every word in your text and compares it against a bundled dictionary of roughly 150 of the most common English misspellings — things like "recieve", "definately" and "accomodate" — and suggests the correct spelling for any match. It is a rule-based lookup, not an AI language model.
Will it catch every possible spelling mistake?
No. It only catches misspellings that match its bundled dictionary of common typos. An unusual or rare misspelling that is not on that list will pass through unflagged. This trade-off avoids false positives on unusual but correctly spelled words, at the cost of not catching absolutely everything.
Does it catch wrong-word mistakes like "their" vs "there"?
No — those words are spelled correctly, so a spelling check has nothing to flag. That kind of mix-up is a wording error, which the Online Proofreader checks separately using its own set of context rules.
Is this an AI spell checker?
No. It is a rule-based dictionary match — every word is compared against a fixed list of known misspellings and their corrections. There is no language model involved, which is why results are instant and identical every time you run the same text.
Does it flag names, brands or technical terms as misspelled?
No. Because the checker only matches against a specific list of known misspellings — not a general "is this a real word" dictionary — proper nouns, brand names and technical vocabulary are never falsely flagged.
Is my text uploaded or stored anywhere?
No. The check runs entirely in your browser against the bundled dictionary. Your text is never sent to a server, logged or saved.
What does the "accuracy" percentage mean?
It is the share of words in your text that had no dictionary match — (total words − flagged words) ÷ total words. It is a simple ratio describing this specific text against this specific dictionary, not an independently validated measure of spelling quality.
Security

Is the spell checker safe to use?

This tool runs entirely inside your browser. Your text, files and settings are processed on your own device and are never uploaded to our servers — there is nothing for us to store, log or leak. You can confirm it yourself: open your browser DevTools, switch to the Network tab, and use the tool. You will not see an upload request. It also means the tool keeps working if your connection drops mid-task.

No account required No file storage HTTPS everywhere
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