Free AI Plagiarism & Originality Checker
Paste your manuscript to get an AI originality assessment. It flags clichéd, derivative, and generic passages, catches internal repetition, and suggests rewrites. This is an AI analysis of your own text, not a web or database scan.
This is an AI originality assessment of your own text — it reads your writing and flags passages that come across as clichéd, derivative, generic, or internally repeated. It does NOT scan the internet or any plagiarism database and cannot confirm whether your text matches a specific source. For a definitive source match before academic submission, also run your work through a dedicated database plagiarism scanner such as Turnitin or Copyleaks.
How the originality checker works
Paste your text and the tool reads it the way a sharp editor would, judging how fresh the writing feels and where it slips into stock phrasing or repeats itself.
Paste your manuscript
Drop in a chapter, a blurb, or a whole manuscript. Nothing is truncated, so the assessment reflects your full text rather than a sample.
Get an originality read
The AI scores how original the writing feels, flags clichéd and derivative passages with the reason each one stands out, and lists phrases that repeat inside your own text.
Rewrite the weak spots
Every flagged passage comes with a concrete rewrite suggestion. Rewrite the generic lines in your own voice, vary the repeated ones, and your prose reads more like you and less like everyone else.
Who uses the originality checker
Anyone who wants their writing to feel fresh rather than familiar can use this before they publish or submit.
Indie authors before KDP
You want your novel to stand out on a crowded shelf. Catch the tired phrases and stock foreshadowing before a reader does, and rewrite them into something that sounds like your voice. If you're publishing AI-assisted fiction, check what KDP allows for AI-generated books first.
Nonfiction and self-help writers
Advice books drift into generic, interchangeable phrasing fast. Surface the passages that could belong to any book in your niche and sharpen them into something specific.
Editors and beta readers
Get a fast first pass that highlights clichés and repeated lines, so your own editing time goes to the judgment calls a tool can't make.
Frequently asked questions
No. This is honest about what it is: an AI analysis of the text you paste. It cannot browse the web or search a database of published books, so it never claims your text matches a specific source. It judges how original your writing reads and flags clichéd, derivative, generic, and repeated passages. If you need a definitive source match, use a dedicated database scanner such as Turnitin or Copyleaks alongside it.
The score, from 0 to 100, reflects how fresh and distinctive your writing reads to the AI. A high score means the prose feels original; a lower score means it leans on clichés, stock phrasing, or derivative structure. It is a writing-quality signal, not a percentage of text copied from somewhere.
No tool that only reads your text can prove that, and this one won't pretend to. It can tell you whether your writing reads as unoriginal and where it repeats itself, which helps you strengthen it. To also check whether passages read as machine-written, run the AI content detector. Proving a match against a real source requires a database scanner that indexes billions of documents.
Yes. It flags phrases and sentences that recur inside the text you paste, with an occurrence count. That is genuinely useful for spotting the pet phrases and repeated beats writers fall into without noticing.
You can paste anything from a single paragraph to a full manuscript, and the tool analyzes the whole thing rather than a trimmed sample. Longer text gives the assessment more to work with and a more representative originality read.
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