Free Online Plagiarism Checker for Students & Teachers
Instructions: Cut & paste your paper or homework assignment -- or your student's submitted work -- into the box below, and click the "check" button. This free plagiarism detector will find plagiarized text in homework and other essays/reports.
AI & ChatGPT detection // powerful new feature // more
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How this plagiarism checker works
Paste your essay, report or a student's submission into the box above and press the check button. plagiarism.ink picks the most distinctive passages in the text, searches the web for each one as an exact phrase, and shows you which passages appear on other pages, with a link to the page where each match was found. You do not need an account for the free check.
A match is a lead, not a verdict. Quotations, common phrases, bibliographies and properly cited material can all show up as matches. Read each flagged passage and the page it matched before drawing a conclusion. More about how plagiarism checkers work.
The industrial revolution reshaped how families lived and worked. The factory system concentrated labor in urban centers, drawing millions from the countryside1 and changing the rhythm of daily life. Children often worked alongside their parents, and working conditions were frequently dangerous, with long hours and little pay2. Over time, reform movements pushed for shorter days and safer machines, and by the end of the century child labor laws had been passed in most industrial nations3.
Paste your text
An essay, a report or a student's submission. No account needed for the free check; Premium also takes Word files.
We search the web
The most distinctive phrases are searched as exact matches. Short, generic sentences are skipped.
Read the evidence
Matched passages are highlighted in your text, each linked to the page it was found on. How plagiarism checkers work.
Who uses it
Teachers check homework and papers for copied passages before grading (plagiarism checker for teachers). Students check their own drafts for accidental plagiarism before submitting (plagiarism checker for students). Writers and editors use it to confirm that an article is original. The service has been online since 2002.
Teachers
Check homework and papers for copied passages before grading. Every match comes with the page it was found on.
Students
Check your own draft for accidental plagiarism before you hand it in. Fix the citation, not the grade. Writers and editors use it to confirm an article is original, too.
Free and premium
The free check searches for a limited number of passages per paper and has a daily limit. Premium plans search more passages per paper, accept Word documents, skip quoted text and produce a printable report. Plans start at $14.95 a month and you can cancel at any time.
Silver
- Basic Detection
- AI Detection - detect ChatGPT and other AI
- Doesn't Store Papers - unlike competitors
- Ignores text in quotes - skips cited text
- Upload MS Word docs - save you time!
- Word count
- Early Access Features - access to new detection features as they are developed
Gold
- Basic Detection
- AI Detection - detect ChatGPT and other AI
- Doesn't Store Papers - unlike competitors
- Ignores text in quotes - skips cited text
- Upload MS Word docs - save you time!
- Word count
- Early Access Features - access to new detection features as they are developed
Platinum
- Basic Detection
- AI Detection - detect ChatGPT and other AI
- Doesn't Store Papers - unlike competitors
- Ignores text in quotes - skips cited text
- Upload MS Word docs - save you time!
- Word count
- Early Access Features - access to new detection features as they are developed
All plans include up to 50 uses per month, each additional use 25 cents each.
Frequently asked questions
Is the plagiarism check really free?
Yes. The free check needs no signup. It is limited to a daily number of uses per visitor.
Does it work for any subject or language?
It searches for exact phrases from your text, so it works best with English text that could appear on the public web. It cannot see papers that are not online, such as another student's unpublished essay.
Does a match mean I plagiarized?
No. A match means the same words appear somewhere else. Cited quotations match by design. Judge each one in context.
Do you keep my text?
No. Papers are not stored or added to a database.