Plagiarism Checker — write original, with confidence.
Estimate originality and spot phrasing that may need a citation. Run a free preview here; full source-matched scans need a free account.
How the plagiarism checker works
Paste your text
Add the draft you want to check for originality.
Scan preview
Get an originality estimate and see phrasing that may need a citation.
Run a full scan
Create a free account to match against real sources with links.
More writing tools
One toolkit instead of ten tabs — every Phrasera tool is free to try, no signup required.
Paraphraser
Rewrite anything, any style
Open Paraphraser →Grammar Checker
Fix grammar & spelling
Open Grammar Checker →Summarizer
Condense to the essentials
Open Summarizer →AI Detector
Estimate AI-written odds
Open AI Detector →Citation Generator
APA, MLA, Chicago & more
Open Citation Generator →Translator
Natural, fluent translation
Open Translator →Word Counter
Words, characters, reading time
Open Word Counter →AI Humanizer
Make AI text sound human
Open AI Humanizer →Case Converter
UPPERCASE, lowercase, Title Case
Open Case Converter →Readability Checker
Reading ease, grade level
Open Readability Checker →Title Generator
Catchy titles & headlines
Open Title Generator →Text Compare
Spot differences between two texts
Open Text Compare →Word Frequency Counter
Most-used words & keyword density
Open Word Frequency Counter →