Free punctuation checker — check punctuation online and find errors instantly. This punctuation corrector detects double spaces, missing spaces, repeated marks, unclosed quotes, and more. No signup.
Multiple consecutive spaces between words — typically a remnant of typewriter-era formatting.
Space appearing before a comma, period, or exclamation mark — common in French text or copy-paste errors.
No space following a comma, period, or colon — often introduced by autocorrect or fast typing.
Multiple exclamation marks (!!!) or question marks (???) — generally not appropriate in formal writing.
Odd number of double quote characters — a quotation mark was opened but not closed.
Different numbers of opening and closing parentheses — a bracket was opened or closed incorrectly.
Two clauses joined by a comma with no conjunction — may need a semicolon or period instead.
Space-hyphen-space pattern where an em dash (—) may be more appropriate for sentence breaks.
Need full grammar checking? Grammar Checker catches tense, agreement, and word choice errors too.
Grammar Checker →Filler words and passive voice? Clarity Checker audits those patterns together.
Clarity Checker →A punctuation checker scans text for punctuation errors — double spaces, missing spaces, repeated marks, unclosed quotes, parenthesis mismatches, and more. This free punctuation checker detects 8 common error types and groups results by category.
Paste your text into the checker above and click "Check Punctuation." The tool scans your text, identifies errors by category, and shows example sentences for each issue. No signup required.
Multiple consecutive spaces, space before punctuation, missing space after punctuation, repeated punctuation marks, unclosed quotation marks, parenthesis mismatches, potential comma splices, and space-hyphen-space patterns where an em dash may be intended.
A punctuation corrector identifies punctuation mistakes and explains what needs fixing. This tool shows each error category, count, and example text — you make the corrections manually to preserve your intended meaning.
No. The punctuation checker detects and flags errors but does not auto-correct. Auto-correcting can change meaning, especially with apostrophes, commas, and dashes.
Completely free with no signup, no usage limits, and no data sent to a server.
A grammar checker checks grammatical errors — subject-verb agreement, tense, word choice. A punctuation checker specifically looks at punctuation mark usage. Use both for a complete writing audit.
Most grammar checkers treat punctuation as an afterthought — they catch misplaced apostrophes but miss double spaces, spacing errors around punctuation marks, and unclosed quotation marks. This dedicated free punctuation checker focuses specifically on punctuation-level errors that grammar tools overlook. It runs 8 targeted pattern checks on your text and groups results by error type so you can fix issues systematically. Students use it before submitting essays. Editors use it to check punctuation online in client manuscripts. Blog writers use it before publishing to catch formatting errors introduced by copying from Word or Google Docs.
The most common punctuation errors in written English are not the ones taught in school — they are the ones introduced by modern writing workflows. Copy-pasting from Word or emails often introduces double spaces. Fast typing introduces missing spaces after commas. Autocomplete adds spaces before punctuation. This punctuation corrector catches all of these automatically. It also flags potential comma splices — sentences joined by a comma where a semicolon or period would be more appropriate — and suggests em dashes where space-hyphen-space patterns appear. Use it alongside the grammar checker and readability checker for a full writing audit.