Copyleaks Review:
based on real mystery shopping

A*Help Score: 86/100
🔥 published August 3, 2023 - updated January 29, 2025

Want to know if Copyleaks lives up to the hype? We’ve tested it thoroughly so you can decide if it’s worth adding to your study arsenal. Give it a shot — and it might just save you from some awkward conversations with your professors.

TOP services Our verdict AHelp Score 🔥 Updated January 2024
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AHelp Plagcheck
⭐⭐⭐⭐⭐
Best plagiarism detector 86.5/100 Get free access
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TL;DR

PLAGIARISM DETECTOR
🌟 A*Help score86/100
✅ Detection Quality44/50
💲 Price$10.99





Copyleak’s plagiarism detection tool was simple to navigate and had a free usage option. It provided a high level of accuracy when finding stolen content but couldn’t detect AI-paraphrased bits. 
⚖️ Our verdict⭐⭐⭐⭐
Works great for academic texts that need proof of originality.
Copyleaks' Plagiarism Detector

Copyleaks Plagiarism Detector – Quick Overview

Let’s talk plagiarism. Copyleaks, a candidate for the best plagiarism checker, can sniff out copied work alongside AI-generated content and sneaky rephrased text. It’s a favorite among students and educators for its handy features and dead-on accuracy. Curious to know why? See how we test plagiarism checkers and stay tuned.

The Good
  • Excellent selection of free features
  • Has advanced option for cross-language search
  • Can analyze content in various sources
The Bad
  • AI-generated text cannot be identified
  • Lack of browser extension

An infographic with a short Copyleaks review describing the ways it was tested and how it received an A*Help Score: 86/100

What exactly is plagiarism? Taking someone else’s work without asking and calling it yours. It’s not exactly an evil genius move, and in some cases, it can escalate into legal trouble. At school, a flagged paper won’t get you arrested, but it might earn you an expulsion letter. Yikes.

That’s what tools like Copyleaks were designed to prevent. This thing scans your work faster than you can say, “I swear I didn’t copy!” It’s super popular for spotting everything from plain copy-paste jobs to AI-generated tweaks. Educators swear by it because it goes full private investigator mode on them essays.

Trying plagiarism detection with Copyleaks
Trying plagiarism detection with Copyleaks (click to see a bigger image)

Copyleaks Mystery Shopping: How We Tested the Plagiarism Detection Service

We like to think of ourselves as detectives — minus the trench coats. Our goal is to dig into every detail of a service’s customer journey and test out different scenarios to gather all the evidence needed to give you the full picture.

When we mystery shop, we break things down into three main areas: value for money, overall experience, and how well the plagiarism detection actually works. We’re all about getting into the nitty-gritty, checking out the features, pricing, and just how easy it is to use the website.

The real star of the show, though, is testing the plagiarism detection itself. For this, we used five texts about leadership qualities, mixing things up to see how accurately the tool could spot plagiarism. We tested everything — from 100% copied content to more tricky rewrites. Again, you can see how we test plagiarism checkers for more details about our approach.

For this run, we have prepared 5 texts meant to discuss the characteristics of a leader:

StatusExpected Results
✍️ Written from scratch
🔍 Found online & submitted
🤖 ChatGPT-paraphrased
🤖 Quillbot-parapharsed
🔠 Online text with interchanged letters❌ / ⚠️

After piecing everything together, we came up with the A*Help score — a rating system that sums up the service’s quality and usefulness. Copyleaks went through the same grinder, and now you can see how it stacks up for yourself!

Copyleaks’ Plagiarism Detection Quality — 44/50⭐️⭐️⭐️⭐️

Plagiarism detection boils down to spotting stolen text — and Copyleaks mostly delivers on that front. Here’s how it performed when we ran the 5 test pieces through its system.

First up, a completely human-written text. Copy Leaks flagged it as 92.6% plagiarism-free, proving it’s reliable for checking original work. So, no stress if you’re writing your own stuff — it won’t falsely accuse you of cheating.

1st text scan at Copyleaks
Human-written text scan at Copyleaks (click to see a larger picture)

Next, we tested a copy-paste job from the internet. Unsurprisingly, Copyleaks labeled it 100% plagiarized. Lesson learned: swiping text without proper credit will absolutely get your originality card declined.

2nd text scan at Copyleaks
Internet sample scan at Copyleaks (click to see a larger picture)

Then came the trickier tests, starting with 2 AI-paraphrased papers. Copyleaks caught 80.35% of the plagiarism, showing it’s decent at sniffing out recycled content, even if it’s been reworded. And yes, paraphrasing doesn’t make your paper “new,” so citations are still necessary for academic honesty. 

3d text scan at Copyleaks
AI-paraphrased text scan at Copyleaks (click to see a larger picture)

For the final test, we found a text online and letter-manipulated it using AI. Here, Copyleaks missed the mark and called it 100% original. It seems spotting AI magic isn’t its strong suit — yet.

Overall, Copyleaks impressed us with its ability to detect plagiarism and handle paraphrased content. While it’s not perfect at catching AI-altered text, it’s still a solid choice for identifying copied or original work. You can always confirm our findings with your own test run.

> Text> Best result> Acceptable result> Copyleaks result
Human-written text100% free of plagiarism10% margin of error92.6% free
Internet sample100% plagiarism detected10% margin of error100% detected
AI paraphrase (2 texts)100% free of plagiarism10% margin of error80.35% plagiarism detected
Replaced characters100% plagiarism detectedFlagged character replacements0% detected

Copyleaks’ Plagiarism Detector: Value for Money — 21/25⭐️⭐️⭐️⭐️

If you’re on the prowl for a reliable originality assistant, Copyleaks Plagiarism Checker has you covered — and then some. It’ll spot copied text, but it also has decent AI detection, citation proofreading, and even cross-language checks. Handy!

We tested the service and found it could analyze files, text from URLs, and academic-style formatting. That citation proofreading feature? A lifesaver when your references need to look legit.

Copyleaks also goes the extra mile with cool perks. In addition to AI content detection, it compares documents side by side, and extracts text from images. Got a picture of your lecture notes? Boom, they’re text-ready for your presentation.

The spectrum of sources it checks is pretty impressive, too. It scans the internet, digs through uploaded files, and can tap into its own database. Whatever you throw at it, Copyleaks is on it.

And the best part is that you can try all of it for free. There’s a 10-page limit, but that’s plenty for most assignments. Want more? The paid plan is $10.99/month for up to 100 pages — and they toss in discounts to sweeten the deal.For students and professors alike, Copyleaks isn’t just a one-trick pony, but a versatile toolkit for tackling academic challenges. Want to check plagiarism for free? Give it a go!

11/15
Basic features
6/6
Sources
4/4
Price & special offers

Copyleaks Plagiarism Detector’s Overall Experience — 21/25⭐️⭐️⭐️⭐️

Ideally, plagiarism detectors should be easy to use, and Copyleaks gets it. The site is simple to navigate, so you don’t waste time scrambling for the right button. Plus, you can test it out before even registering, so you know exactly what you’re getting into. Signing up was a breeze, and you could link up your Google or Facebook account for no-stress logins.

Copyleaks' main page
Copyleaks’ main page (click to see a larger picture)

What about a browser extension? There isn’t one. But honestly, for our Copyleaks review that wasn’t a big deal. The detection process was quick enough that we didn’t feel like we were wasting time.

The real MVP here is the support system. When we hopped on, there was a brief guide that covered all the basics and any burning questions. If you still need help afterward, there’s a contact form. You can feel pretty solid using the platform.

Payment options are also versatile; Copyleaks isn’t messing around. You’ve got options, from wallet payments to credit cards.

According to our Copyleaks review, they didn’t just do the job, but made the whole process pretty painless. Honestly, if we stumbled upon it first, we probably wouldn’t have bothered looking for anything else.

16/20
User experience & registration
5/5
Support

The Verdict

Copyleaks reviews show that it is a convenient and affordable plagiarism checker. It’s got all the features you need, like citation checks, AI content detection, and text comparison — perfect for your academic writing grind. Is it flawless? Well, it catches plagiarism 9 out of 10 times. If you’re a student, it’s a good choice for checking your paper before you hand it in. And if you’re a teacher trying to figure out if someone just copied and pasted or reworded a paper, Copyleaks has your back. With all the wild cheating hacks out there, Copyleaks is a good fresh pair of eyes — and it performs its inspections well. 

Copyleaks’ Plagiarism Detector Specs

> Features
Check files
Insert text
URL
Receive report
Word limit
Academic proofreading module (check citations and etc)
Check for free/trial
Number of free checks availableup to 1500-2000
Spelling check
Grammar check
> Advanced features
Detect AI content
Cross language search
Text compare
OCR scan
> Sources
Internet
Current Batch Files (your own docs)
Plagchecker’s database
> Price & special offers
Paid plansCheap
Discounts
> Accessibility
Easy to use website
Desktop version
Trying before registration
Browser extensions
Account (do users have an account?)
Time to check worka couple of seconds
Need email to register
Need phone to register
Third-party registration methods
> Support
Onboarding (how to use plagcheck)
Guides
Support chat
> Payment
Wallets (ApplePay, GooglePay, Paypal)
Visa
MasterCard
Amex
Discover

FAQ

Is Copyleaks accurate?

Yes, Copyleaks is decently accurate, catching plagiarism about 9 out of 10 times. It’s reliable for students and teachers who want to detect copied or rephrased content effectively.

Is Copyleaks safe?

Absolutely. Copyleaks prioritizes user security, using encrypted servers to keep your data safe. It claims to never share or misuse your uploaded content, and we have encountered no safety issues during our reviewing process.

Does Copyleaks keep your work?

Nope! Copyleaks doesn’t store your uploaded files permanently, so your work won’t end up floating around the internet.

Do teachers use Copyleaks?

Yes, many teachers use Copyleaks to spot plagiarism in student work and identify copied or heavily reworded content from online sources.

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Comments (2)

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Amanda Hayes September 29, 2023

I tried the OCR scan with some of my handwritten notes, and it worked smoothly. This tool is going to save me so much time.

Mia Sosa September 29, 2023

Agreed! I was hoping to get all the text checking done in one place. Looks like I’ll need a separate tool for grammar and spelling. But i’m sure it’s gonna be added in one of the future updates

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