Felo
Free Punctuation Checker & Grammar Corrector
What is Free Punctuation Checker & Grammar Corrector?
Free Punctuation Checker & Grammar Corrector is an AI punctuation checker that fixes commas, apostrophes, periods, semicolons, colons, and quotation marks in any English text — and explains why every correction was made. Paste an essay, email, resume, or blog post and get a clean, correctly punctuated version back in seconds, along with a plain-English rule for each fix so you stop making the same mistake. Unlike most punctuation corrector tools, there's no word limit and no signup.
Key Features
- Fix every punctuation error instantly — comma splices, missing commas, misplaced apostrophes, run-on sentences, and more are corrected automatically.
- Learn while you write — every correction comes with a one-line rule explained in plain English, turning each check into a mini punctuation lesson.
- Handle unlimited text — proofread whole essays, manuscripts, and reports in one go. No 125-word free cap like QuillBot's checker.
- Respect your voice — only punctuation changes; your words, tone, and meaning stay exactly as you wrote them.
- Support all English dialects — automatically detects US, UK, Canadian, or Australian English conventions for quotes and punctuation.
How to Use
- Paste your text — copy any writing with punctuation issues (or upload a .txt, .docx, .pdf, or .md file) into the input box.
- Send it — the checker reads the full text, corrects every punctuation error, and prepares your clean version.
- Review the corrections — read the corrected text, then scan the explanations list to learn the rule behind each fix. Copy the corrected version anywhere you need it.
Example Use Cases
- Essay punctuation check — a student fixes a comma splice in their term paper intro before submitting to Turnitin.
- Apostrophe errors in emails — a professional cleans up "the teams performance" and "its going well" in a client email.
- Resume proofreading — a job seeker corrects run-on sentences and missing periods in their cover letter for a tighter application.
- Blog post editing — a blogger checks quotation mark placement and semicolon usage across a long article draft.
- Academic paper punctuation — a researcher fixes colon usage in their abstract and list formatting in the methods section.
Tips for Best Results
- Paste the full document at once — the checker handles long text, so you get one consistent pass rather than checking piece by piece.
- If you write for a specific audience, mention the dialect (e.g., "UK English") and the agent will apply that convention throughout.
- Use the explanations like a checklist — reread the rules for errors you keep making, and you'll write cleaner the first time.
FAQ
How long can my text be?
There's no practical limit. You can paste anything from a single sentence to an entire book chapter. Very long documents are processed in sections, and you just say "continue" for the next part.
How accurate are the results?
The checker reads for meaning, not just rules, so it catches context-dependent errors like it's vs. its and comma splices that basic tools miss. If you ever disagree with a correction, you can ask why — every fix includes its rule.
How does this compare to QuillBot's punctuation checker?
Both fix punctuation instantly and free, but this agent goes further: every correction is explained with a rule (QuillBot silently fixes), there's no free word-count cap, and it flags mixed-dialect inconsistencies. It also fixes a broader range of marks — from commas and apostrophes to colons, semicolons, hyphens, and quotation placement.
Does it change my writing style?
No. Only punctuation is corrected. Your vocabulary, sentence structure, and tone stay exactly as you wrote them.