AI Proofreader
Paste your text and get grammar, spelling, punctuation, and clarity corrections in seconds. Three modes — Quick Check, Deep Edit, and Academic — plus a change log showing every fix with a short explanation.
Why Use AI Proofreader?
Grammarly is the category leader, but its free tier is deliberately limited — the good features (tone, clarity, rewrites) sit behind a paywall, and every suggestion dialog nudges you toward the Pro upgrade. ProWritingAid costs money. Most free grammar checkers either gate features behind signup, cap the word count at 500, or run noticeably worse models than the paid tools they're trying to poach customers from. DevPik's proofreader is genuinely free — no account, no credit card, no extension install. You get grammar, spelling, style suggestions, and a change log without agreeing to anything. The trade-off is honest: it's not quite as polished as Grammarly Pro on niche writing styles, but for the writing most people do most days, it does the job in 10 seconds.
How to Use AI Proofreader
- Paste your text into the editor (up to around 2,000 words per pass — split longer pieces into sections).
- Pick a mode: Quick Check for grammar and spelling only; Deep Edit for grammar plus style and clarity suggestions; Academic for formal tone with passive-voice flags.
- Choose US English or UK English if spelling conventions matter (color vs colour, organize vs organise).
- Hit Proofread and wait about 10 seconds while the thinking model reads and corrects your text.
- Review three tabs: Corrected Text (the cleaned version), Changes Made (every fix with a one-line reason), and Suggestions (optional style improvements).
- Copy the corrected text, or cherry-pick changes from the list and apply them manually to your original.
Worked Examples
Blog post excerpt with typical errors
Original (with errors): 'Me and my team was excited to launch the new product. Its going to changed the way people think about productivity. We spend alot of time thinking about the user. The product was build from scratch over six months.'
Corrected: 'My team and I were excited to launch the new product. It's going to change the way people think about productivity. We spent a lot of time thinking about the user. The product was built from scratch over six months.' Changes: 'Me and my team' → 'My team and I' (pronoun order and case); 'was' → 'were' (subject-verb agreement); 'Its' → 'It's' (contraction needed); 'changed' → 'change' (infinitive form); 'spend' → 'spent' (past tense); 'alot' → 'a lot' (spacing); 'build' → 'built' (past participle).
Quick Check mode catches seven discrete errors in one pass.
Formal email in Deep Edit mode
'I hope this email finds you well. I am reaching out to enquire if you would be willing to have a quick discussion regarding the upcoming project. Would it be possible to schedule a meeting at your earliest convenience?'
Corrected: (no grammar errors) Suggestions (Deep Edit): Replace 'I hope this email finds you well' with a specific, concrete opener — readers skim past the boilerplate. 'I am reaching out to enquire' can become 'I'd like to ask'. 'At your earliest convenience' is 1980s corporate — 'this week or next' is clearer and shows you have a timeframe in mind.
Deep Edit keeps the corrected text identical when there are no errors, and returns clarity suggestions instead.
Academic essay paragraph
'It is clear that climate change has a big impact on coastal cities. The sea level is being raised by melting ice caps. Many people are worried about this and are doing things to help.'
Corrected: (no grammar errors)
Academic-mode suggestions: 'It is clear that' — hedging; state the claim directly. 'Has a big impact' — imprecise; quantify where possible ('has increased coastal flooding events by 35% since 2000'). 'Is being raised by' — passive voice; 'melting ice caps are raising sea levels' is active. 'Doing things to help' — vague; name specific mitigation actions.Academic mode enforces active voice and pushes toward precise, cited claims.
About AI Proofreader
Proofreading is the last pass before a piece of writing goes out — catching the typos, subject-verb disagreements, comma splices, and homophone mixups (their/there, affect/effect) that sneak past the writer's own eyes. It's different from editing (which reshapes arguments and structure) and from copyediting (which enforces a style guide). A proofreader's job is to make sure nothing embarrassing ships. AI proofreaders have gotten good enough that for most casual and semi-professional writing — blog posts, emails, cover letters, LinkedIn updates — they match a competent human pass. Where they still struggle: industry-specific jargon they mistake for errors, the author's deliberate voice choices (sentence fragments for emphasis, informal contractions in formal contexts), and the high-stakes judgment calls that require human editorial taste (legal briefs, published journalism, book manuscripts). For the 80% of writing that doesn't need a human editor, AI proofreading catches the errors a spell-checker misses, in seconds, for free. The Quick Check mode sticks to real mistakes. Deep Edit adds 3-5 style suggestions per pass. Academic mode flags passive voice and pushes toward the precise wording academic reviewers expect.
Troubleshooting & Common Issues
My text is over 2,000 words
Split it into sections of 1,500-2,000 words and proofread each separately. The thinking model can technically handle longer input, but quality degrades and response times grow past that limit. Copy each corrected section back into your document as you go.
It missed an obvious error I can see
Two things to try: (1) Regenerate — thinking models can produce slightly different passes each time. (2) Switch to Deep Edit mode, which runs the text through a more thorough second pass. For very niche errors (industry-specific jargon, proper nouns, branded terms), no AI proofreader is perfect — always do a final human pass.
It changed my voice or rewrote my style
Use Quick Check mode instead of Deep Edit. Quick Check only fixes real errors (spelling, grammar, punctuation) and leaves your voice alone. Deep Edit is more aggressive with rephrasing. You can also cherry-pick changes from the Changes list instead of accepting the whole corrected output.
The UK/US English distinction is ignored
Make sure you've selected the correct language variant before generating. For the first pass, the AI goes off the setting; if you switch mid-session and forget to regenerate, you'll get mixed results. Also check spellings like 'practise' (UK verb) vs 'practice' (US) — those are correct regional choices, not errors.
The JSON response got cut off or malformed
The thinking model sometimes uses its output budget on internal reasoning before producing the final JSON. Regenerate once — it usually completes cleanly on the second pass. If the issue persists, try splitting very long input into shorter sections.
Frequently Asked Questions
Is this AI proofreader really free?
Yes, completely free with no account, no email wall, no credit card. You get grammar checking, spelling, style suggestions, and the full change log without signing up for anything. The only limit is a soft rate limit of about 10 proofreads per hour per IP to prevent abuse.
Is it better than Grammarly?
For the features the free tier of Grammarly offers (basic grammar and spelling), it's comparable. Grammarly Pro still wins on advanced rewrites, plagiarism detection, and tight integration with Google Docs and Gmail. DevPik wins on no signup, no word limit tier, and no upsell pressure — good for one-off passes where you don't want an extension installed.
Do I need to create an account?
No account, no email, nothing. Paste your text, hit Proofread, get your result. Nothing is stored tied to you — the text is sent to the AI model for processing and then discarded on our end.
How is my text handled? Is it stored?
Your text is sent to our AI provider to generate the proofreading output. We don't store it on DevPik servers beyond the request itself, and we don't tie it to any user identity (there are no user accounts). Don't paste documents with personal identifying details, confidential legal text, or highly sensitive business information into any AI proofreader, including this one.
Can I proofread in British English?
Yes. Pick 'UK English' in the language selector before you hit Proofread. The AI will apply British spelling (colour, organise, travelled) and British punctuation conventions. If you're writing for a mixed audience, decide on one variant and stick with it for the whole piece.
What's the word limit per pass?
About 2,000 words. For longer pieces, split them into sections. The tool technically accepts longer input, but quality drops and response times increase. Most blog posts, emails, cover letters, and essays fit comfortably in one pass.
Does it check for plagiarism?
No — this is a grammar and style proofreader, not a plagiarism scanner. For plagiarism detection, use a dedicated tool like Copyscape, Turnitin, or Grammarly Pro (which bundles a plagiarism check). Proofreading and plagiarism detection are separate problems and are best handled by tools built for each.
Can I use this for academic essays and dissertations?
Yes — switch to Academic mode before you hit Proofread. Academic mode enforces formal tone, flags passive voice, and pushes toward precise wording. For a dissertation or graduate thesis, use the AI pass as a first screen, then have an advisor or professional editor do the final read. AI proofreaders catch mechanical errors but can't evaluate the strength of your argument.
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