Founded 2025 - 8+ years experience
Plagiarism Checker
Searches Google for exact sentences from your text and shows which pages already contain them.
Why it matters
Copied or syndicated text rarely ranks and can get a site filtered. It also happens by accident: a writer reuses a supplier's product description, or an old page is cloned onto a new site.
What you get
We sample sentences from your text and run exact-match Google searches for each. You see which sentences exist elsewhere, on which pages, and an originality estimate.
Part of the SEO Toolkit
47 tools, one subscription, no per-tool pricing. Monthly plan.
- ✓ Content, on-page and technical checks
- ✓ Keyword, SERP and rank tools on live Google data
- ✓ Image tools and AI writing assistants
- ✓ 1,500 runs a month, cancel any time
Already have one? Open the tool
More Content tools
- Word CounterWords, characters, sentences, paragraphs, reading and speaking time, and the most used words.
- Keyword Density CheckerHow often each word and phrase appears on a page or in your text, as a count and a percentage.
- Readability CheckerFlesch Reading Ease, Flesch-Kincaid grade, Gunning Fog and SMOG scores for a page or text, with the long sentences flagged.
- Text Case ConverterConvert text to sentence case, Title Case, UPPER, lower, or slug-case in one click.
- Text CompareSide-by-side difference between two versions of a text - handy for checking what a rewrite changed.
Frequently asked questions
It is part of the SEO Toolkit subscription, which covers all 47 tools for one monthly price. There is no per-tool charge and you can cancel any time. North SEO's free tools are the Google Business Profile Audit and the Review Link Generator.
No. Everything runs in the browser or on our servers. Log in and use it from any device.
Live from the source: your page is fetched when you run the tool, Google data comes from live searches in the location you choose, and page speed comes from Google PageSpeed Insights.