Students
Check assignments, projects and theses before you submit. Fix copied passages, cite sources correctly and share a verifiable report with your teacher.
Writing integrity suite
Plagiarism checker with AI, grammar and readability report
Check essays, assignments, theses and articles in one place. See exactly which sentences match other sources, which read like AI, and what to fix, then share a report your teacher or editor can verify.
- Exact matches highlighted with sources
- AI-writing indicators by sentence
- Grammar & spelling with one-click fixes
- Verifiable report for teachers
You edited the text. to update the results.
Made for everyone who writes, and everyone who reads it
Teachers and professors
Ask students to attach a report ID. Verify it in seconds and see the similarity, AI-writing indicators and sources for the exact text submitted.
Writers and bloggers
Publish original, clean copy. Catch accidental overlaps, grammar slips and long sentences before your editor or Google does.
Institutions and teams
Plus and Pro raise the limits for long documents and regular checks. Contact us for department or newsroom plans.
How the H View checker works
- Paste or uploadPaste your essay, assignment or article, or upload a Word, PDF or text file. Add a title so your report is easy to find.
- Run one checkPlagiarism, AI-writing indicators, grammar, spelling and readability are checked together, usually in under a minute.
- Review the highlightsSwitch layers to see copied passages, AI-like sentences, mistakes and long sentences in your text. Tap any highlight for details and fixes.
- Fix, cite and shareApply fixes in one click, copy a citation for each source, then download or share your originality report with its verification ID.
For teachers and editors
Received a report? Verify it.
Every report has an ID and a fingerprint of the exact text that was checked. Paste the submitted text to confirm the report belongs to it.
A plagiarism checker you can trust
Most free checkers give a single percentage and little else, so you cannot tell whether a match is real. The H View checker is built to be verifiable: every match is highlighted in your text and linked to the passage it matched, so you can judge each one yourself. The similarity score is the share of your words that appear, in runs of six or more, in matching sources.
How the plagiarism check works: we take distinctive phrases from your text and look for exact matches in public web pages, Wikipedia, abstracts of more than 200 million research papers (through OpenAlex) and H View articles, then compare each matching source word by word. It cannot see private collections such as Turnitin's store of past student submissions or paywalled journals.
AI-writing indicators look at patterns such as how evenly sentence lengths vary, stock phrases and the absence of a personal voice. They are an estimate, not proof, and should never be used alone to judge someone's work. Grammar and spelling use the open-source LanguageTool engine, with British, American, Australian and Canadian English.
Your privacy: your text is never added to any database, never shown to anyone else and never used to check other people's work. Reports are deleted automatically (after 1 day without an account, 7 days on Free, 90 days on Plus and a year on Pro), and you can delete one at any time.
- Highlights, not just a numberCopied passages, AI-like sentences and mistakes are marked right in your text.
- One-click fixesAccept spelling and grammar suggestions individually or fix all spelling at once.
- Citations in four stylesCopy APA 7, MLA 9, Harvard or Chicago references for each matching source.
- Verifiable reportEach report has an ID and QR code. Teachers can confirm it matches the exact text submitted.
- Fair by defaultQuoted text and the references list are left out of the score. Exclude any source with one tap.
- Free every day3 free checks a day with a free account, more on Plus and Pro.
Questions people ask
Is this plagiarism checker really free?
Yes. Without an account you get one check of up to 500 words a day. A free H View account gives you 3 checks a day of up to 1,000 words. Plus and Pro raise the limits for long assignments and theses.
What does one check include?
A similarity score with highlighted matches, AI-writing indicators by sentence, grammar, spelling and punctuation issues with fixes, a readability score with long and passive sentences, ready-made citations and a verifiable originality report.
How accurate is the plagiarism check?
Every match is shown with its source, so you can verify it yourself. It finds text copied word for word or with small changes. Heavy paraphrasing that changes most of the words may not be detected, which is true of most checkers.
Can it prove that text was written by AI?
No tool can prove that. The AI-writing indicators highlight sentences with patterns common in AI-generated text, as a prompt for review. Human writing can score high, especially formal or edited writing.
How can a teacher verify my report?
Share the report ID or link. On the verify page your teacher enters the ID and pastes the text you submitted. We confirm whether it is exactly the text that was checked, so a report cannot be reused for a different document.
Will my essay be stored or shared?
No. Your text is not added to any database and is not used to check anyone else's work. The report is private, is not listed on search engines and is deleted automatically.
What percentage of plagiarism is acceptable?
It depends on your university or publisher. Many institutions accept a similarity of under 10 to 15% if the matches are properly quoted and cited. Always follow your own guidelines.
Does it check against Turnitin's database?
No. Turnitin compares with its private store of student submissions, which no outside tool can access.
Know someone with a deadline?
Share this free checker with your classmates, students or writing group.
A low similarity score does not prove a text is original, and a match is not plagiarism when it is quoted and cited. AI-writing indicators are estimates, not proof. Your text is never shared or added to any database.
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