To use this plagiarism checker, please copy and paste your content in the box below, and then click on the big blue button that says “Check Plagiarism!” then sit back and watch as your article is scanned for duplicated content.
You know that moment when you hit “submit” on something—maybe it’s a blog post, a research paper, a landing page—and then your stomach kind of drops because… what if? What if that paragraph sounded a little too familiar? Or that stat you pulled in got a little too copy-pasted without realizing?
That’s exactly the reason we built this. Not to police you. Just to give you a solid, reliable way to check yourself before someone else does.
We call it Plagiarism Checker Pro. And no, it’s not trying to be fancy. Just straight-up useful. Copy, paste, scan. Done.
If you’ve used other plagiarism tools, you already know the drill. Some of them gate basic features behind five sign-ups. Others throw popups at you. Or worse—"99% unique!"—while half the text is copy-pasted. Yeah… not ideal.
Here at Toolsbox, we wanted to create something that actually works—quietly, efficiently, and without the fluff.
Paste your text
Hit check
Wait a few seconds
Get a breakdown of what’s original and what’s not
No login walls. No hidden paywalls on the last step. You get the results, you move on.
Honestly? More people than you'd think. And it’s not just students worried about essays anymore.
Nobody wants to accidentally rewrite something that already exists. Google's not a fan. Neither are readers.
Whether you're writing for someone else or reviewing work delivered to you, it helps to double-check. Even if it's just for peace of mind.
If you’re managing a content-heavy site and outsourcing work, running it through a plagiarism detector is kind of... the norm now. Especially if you're targeting evergreen or high-competition keywords. Better safe than sorry.
Let’s face it, some things sound similar across the board. Still helps to have a tool that highlights what might need rephrasing.
So yeah—anyone dealing with text. That’s pretty much the short answer.
Let’s not pretend we reinvented the wheel here. Plagiarism checkers have been around for a while. But what we did want to fix was all the nonsense.
No ads interrupting every scan. No vague “score” that leaves you guessing. Just actual sources, side-by-side matches, and simple clarity.
Also—speed. We don’t slow-walk the process. If it takes more than a few seconds, something’s off.
And privacy. We’re not storing your stuff. We’re not feeding it into some dataset. Whatever you paste into the tool stays your text.
We snuck in a few extras. Not the flashy kind. Just helpful little things.
Real-time comparison viewer – line-by-line matching that actually makes sense
Word density counter – useful for SEO writers trying not to keyword-stuff
Paraphrasing indicator – helps catch reworded content that still might trigger a red flag
Multilingual scan – supports several languages, not just English
Not game-changing, maybe. But useful. Quietly, efficiently helpful.
If you’ve used our other tools—maybe the grammar checker, maybe the PDF converters—you know the vibe. No sign-up. No bait-and-switch. We build tools that do one thing well.
Plagiarism Checker Pro is just another one in the lineup. Clean, focused, quick.
We’re not here to track you. Not here to upsell you. Just here to give you a reliable tool that makes digital life a little smoother.
Can it detect paraphrased content or just direct copy-paste stuff?
Pretty good at both. Direct plagiarism gets flagged fast. Paraphrasing gets a lighter flag, with suggestions. Not perfect, but better than most.
Is it free or am I going to hit a paywall halfway through?
Totally free on Toolsbox. No logins. No sudden “upgrade now” screen.
Does it store or save the content I check?
Nope. What you paste here stays here. Once you leave or refresh, it’s gone.
Can I upload a file or just paste the text?
Both. You can paste, upload a .docx or .txt, even .pdfs sometimes. We’re working on more formats.
How accurate is this compared to Turnitin or Copyscape?
Different use cases. We don’t compete with academic-level paid tools. But for everyday plagiarism scanning, content checking, and SEO cleanup—this tool holds its own.
Plagiarism Checker
Article Spinner / Rewriter
Keyword Position Checker
Grammar Checker
Domain Authority Checker
Pagespeed Insights Checker
Image Compression Tool
Reverse Image Search
Page Authority checker
Text To Speech
Backlink Checker
Alexa Rank Checker
Backlink Maker
Domain Age Checker
Website Ping Tool
Website Seo Score Checker
Keyword Density Checker
Website Page Size Checker
Word Count Checker
Mozrank Checker
