silvertext.
Free plagiarism checker

Check your writing for plagiarism

Paste your draft and see every passage that matches a published web source, with the source beside it. AI detection, grammar and citations run in the same scan.

or drag and drop a file here

What it finds

Every match,
with its source.

One finding per sentence, the page it came from linked beside it, and the quotes you already credited left alone.

Verbatim passages

The exact overlapping words, one finding per sentence, with a match percentage for each.

"The mitochondria is the powerhouse…" 92% match
The source, every time

The page each match came from, linked, with the author, title and date you need to cite it.

en.wikipedia.org · Mitochondrion · source linked
Quotes already credited

Text inside quotation marks with an attribution is read as a quotation and left alone.

"…" (Darley & Latané, 1968) · quoted, not flagged
Quote or rewrite

Accept a quoted-and-cited version, or a paraphrase that keeps your register, in one click.

Quote & cite · Rewrite · Ignore
Copied code

Source files are searched too, matching on the parts that survive a lazy copy, like comments and error messages.

// TODO: handle timeout · matched on github.com
Any language

Every sentence is matched in the language it is written in, so a paper that mixes languages is handled.

"Les résultats suggèrent que…" · matched in French

What a match looks like

A match is only useful
with its source attached.

We show the matched span, the document it came from, and the exact citation that resolves it, so you can quote it properly instead of guessing what the highlight meant.

essay-draft.docxPlagiarism

How it works

Three easy steps

1Drop it in

Type or paste your text, or drop a Word, PDF, .txt or .md file straight onto the card.

lit-review.docx
2The web check runs

Each sentence is searched against published pages on the open web, then aligned word by word against the page it matched.

The printing press changed who could own a book, and with it who could own an idea.

Within fifty years more titles were printed than had been copied by hand in the thousand years before, and the argument over copying began.

3Quote, cite, or rewrite

Every match arrives with a quoted-and-cited version and a paraphrase, one click to accept.

"…one in three students…" · 92% matchQuote & cite
Paraphrase in your registerApply

Never archived

Your paper stays yours.

Your text is compared against the web, never added to it. It is saved in your report for you, not in any archive that other papers are checked against.

Never added to a matching archive
Uploaded files deleted once read
Never used to train models

FAQ

Questions, answered

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