Plagiarism Checker
Originality and writing-pattern analysis that runs entirely in your browser - with a clear account of what a browser-only check can and cannot verify.
What they are not. Not a plagiarism percentage, not a probability that a machine wrote the text. AI-text detectors are unreliable even when they do run models, and a stylistic score must never be used as evidence against a writer.
Where to get the real answer. Matched-source checking needs an index: Turnitin or iThenticate (academic), Unicheck, Scribbr or Grammarly's plagiarism checker (student and content work), Copyscape (published web pages). For AI-text classification, use the writer's own platform (for example OpenAI's text-classifier work) or institutional tooling - and treat every result as probabilistic.
Use this page for what it genuinely does: spot flat rhythm, over-used filler phrases and thin vocabulary in your own draft before you publish.
How to Use Plagiarism Checker
Follow these simple steps to get the best results.
Paste your content
Add the text you want to analyse; everything is processed locally in your browser and no word limit is enforced on the box.
Read the two scores
Pattern Score reflects repeated phrasing, stock phrases and vocabulary richness; Predictability Score reflects how uniform your sentence lengths are.
Get real matching elsewhere
Use the scope note and an index-backed service (Turnitin, Copyscape, Grammarly, Scribbr) when you need actual matched sources.
Frequently Asked Questions
Everything you need to know about Plagiarism Checker.
About the Plagiarism Checker Tool
The ToolFlic Plagiarism Checker gives you an honest, instant read on how distinctive your writing looks. It tokenises your text, measures sentence-length variance, average word and sentence length, vocabulary richness (unique words divided by total words), hits against a fixed list of 18 stock phrases, repeated two-word patterns and single-word repetition, then reports two clearly labelled heuristic scores. Because nothing is uploaded, no web or database comparison happens - so the page states exactly which figures are local statistics and points you to index-backed services when a real match check is required.
Core Advantages
Catch the habits that make prose read as generic: flat rhythm, recycled clause openings, filler phrases and thin vocabulary - all visible in seconds and entirely privately, which matters for drafts you cannot submit anywhere. Students and freelancers get useful pre-submission feedback without an account, a watermark or a copy of their text sitting on someone else's server, and the scope note teaches the difference between stylistic signals and evidence of copying.
Architecture & Security
Pure client-side text statistics: whitespace normalisation, word and sentence tokenisation, a type-token ratio for vocabulary richness, bigram frequency counting, population variance of sentence lengths, and case-insensitive literal matching against an embedded 18-phrase list. Two weighted bands (clamped to 5-95) turn those measurements into the Pattern and Predictability scores. No network request, no corpus, no language model and no stored copy of your text is involved.
Under the Hood: the Plagiarism Checker explained properly
No marketing filler — just the mechanics, the trade-offs and the real limits, explained clearly.
How it actually works
It runs client-side text statistics. The input is normalised and tokenised into words and sentences, then the tool measures sentence-length variance, average word and sentence length, vocabulary richness as a type-token ratio, matches against an embedded 18-phrase stock list, repeated two-word patterns and single-word repetition, and turns those into two clearly labelled weighted scores clamped to a five-to-ninety-five band.
What that means for your results
Nothing is uploaded, so no text is compared against any web page or database, and the two figures are presented as local statistics rather than a verdict on originality. The naming, Pattern Score and Predictability Score, is honest about what each signal measures.
Where it falls short — honestly
It cannot detect plagiarism, because it has no index to match against and shows no sources or matched passages. A high score means flat rhythm and recycled phrasing, not copying, and a genuinely stolen text that varies its style can pass. When real originality proof is needed, use an index-backed service such as Turnitin, Copyscape, Grammarly or Scribbr.
A real end-to-end workflow
Paste a draft and read both scores as revision guidance: raise sentence-length variety and cut filler phrases to move them, then re-run after edits. Treat the output as a writing coach, keep a dated report from a real checker for submissions, and pair with Grammar Checker and Article Rewriter when the fix is rewording.
In-Depth Guides Using This Tool
Tested workflows, exact sizes and limits — written step by step by the ToolFlic team.
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