Plagiarism checker for students: check before you submit
Paste your essay and see every match sentence by sentence, plus which sentences read as AI-written. Your first check is free, with no account.
- Free check up to 1,000 words
- AI detection included
- Never used to train AI
Check your essay wherever you write it
Chrome extension
Check any text box or selection on the web from Chrome’s side panel.
Chrome extensionAn essay plagiarism checker that shows its work
Not just a percentage: every matched sentence, the source it came from, and how to fix it.
Know your score, then read the sentences
The score is where you start, not a verdict. Quoted and cited text can match too, so the report shows exactly which sentences matched and why.
- Matches and sources counted for you
- Each matched sentence highlighted in your text
- Colour-coded by source
See the source, then cite it
Forgot where a sentence came from? Open the match to read the original, then add the citation instead of rewriting blind.
- Copied words shown in red
- Compare your text with the source side by side
- Cite it in APA, MLA, Chicago or Harvard
See which sentences read as AI-written
Many universities now check for AI writing too. See what a detector would flag, sentence by sentence, before your instructor does.
- An AI score for the whole essay
- A likelihood for every sentence
- In the same report as your plagiarism check
Build your reference list as you go
Most student plagiarism comes from citations that were never added. The citation generator formats each reference for you.
- Auto-fill from a URL, DOI or ISBN
- 16 source types
- APA, MLA, Chicago and Harvard
Check your essay in three steps
Paste your draft
Paste text or upload a file. Your first check is free, up to 1,000 words, with no account.
Read each flag
Open every highlighted sentence and see the source it matched, side by side.
Fix, cite, rescan
Add the missing citation or rewrite the passage, then check again before you submit.
How to avoid plagiarism
Most students who get flagged didn’t set out to cheat. These habits make plagiarism unlikely in the first place.
Take notes in two columns
Exact quotes with their source on one side, your own thoughts on the other.
Paraphrase with the source closed
Write the idea from memory, then check it is accurate.
Cite when in doubt
An extra citation costs nothing. A missing one is an integrity issue.
Build your source list as you go
Add each source the moment you use it.
Check a day before the deadline
Fresh eyes catch language that doesn’t sound like you.
Questions from students
Check your essay before you submit
Your first plagiarism and AI check is free, up to 1,000 words.



