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2.9374 reviews
Internet & Software
700 Canal St., Stamford, Connecticut

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Copyleaks

About Copyleaks

Copyleaks is a leading AI-based content detection platform that helps businesses, educators, and publishers verify the authenticity and originality of digital content. Founded in 2015, Copyleaks is trusted by more than 500 enterprises and educational institutions across 100+ countries and processes over 30 million scans every month. Copyleaks was named the No. 2 company on TIME and Statista's 2025 World's Top EdTech Rising Stars list and recognized on Inc.'s 2025 Best in Business list for Best AI Implementation.What Copyleaks detects: AI-generated text — from models like ChatGPT, Gemini, Claude, DeepSeek, and Llama, across 30+ languages, with over 99% accuracy on English-language content. AI-generated images — from tools like Midjourney and Stable Diffusion, pinpointed down to the pixel level. AI-generated video — newly launched detection for models like Google Veo and Runway. Plagiarism — scanning 60 trillion web pages, 16,000+ academic journals, and internal documents in 100+ languages to find every match and trace it back to its source.Beyond detection, Copyleaks supports AI governance, intellectual property protection, and copyright compliance, with a flexible API and integrations for popular LMS and workflow tools — giving teams clear, dependable answers they can act on.Copyleaks is used by global enterprises protecting intellectual property, publishers safeguarding original work, and universities and school districts defending academic integrity. In a world where anyone can generate text, images, and video in seconds, Copyleaks turns the uncertainty of generative AI into something organizations can measure, manage, and trust.Copyleaks — where technology meets integrity.

Copyleaks (copyleaks.com) has 374 customer reviews on Five Star Index, with an average rating of 2.9 out of 5.

Also known as: copyleaks.com
Website: copyleaks.com
Category: Internet & Software
Location: Stamford, Connecticut
Listed on Five Star Index: 2026

About these reviews

Replies: The company replied to 25% of reviews.
Latest: Most recent review: October 2026.
Edits: Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score: This company cannot pay to remove reviews or change its score.

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Copyleaks reviews

374 approved reviews, newest moderated first

Rachael T.
Jun 16, 2026
I have been trying to buy a monthly…
I have been trying to buy a monthly subscription from Copyleaks for months, but their service sucks. My questions go ignored. They claim you can pay monthly and cancel anytime, but when I tried to purchase the monthly plan, it only allowed me to pay for the entire year upfront. On top of that, their customer service is terrible—slow to respond and unhelpful when they finally do. Very frustrating experience.
Response from CopyleaksJun 16, 2026
Hey Rachael - we're sorry about your experience with trying to purchase a subscription and failing. This should not have happened - we have thousands of new subscribers per month and were not aware of any issue. Will check it on our side immediately, and also noted your support experience, and will work to do better! So thank you. Monthly subscriptions are available by switching to a monthly plan using the switcher on the pricing page - just above the plans columns themselves. Please feel free to reach out to us again anytime on https://help.copyleaks.com/s/contactsupport
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Matthew M.
Jun 12, 2026
I came here for guidance
I came here for guidance, instead I received straight propaganda. Can anyone explain how it's possible for it to flag a sentence I have just created as 100% ai? No, they want to scare you and make u pay for their advanced detection and paraphrasers. Copyleaks, I hate you. 😡👎
Response from CopyleaksJun 16, 2026
Hey Matthew - we're sorry that you feel disappointed like that. The AI score works on text blocks, not individual words. Our model needs context to detect AI patterns reliably — analyzing word by word would lose accuracy. When a block contains enough AI signals, the whole block is flagged. That means short human-written elements inside the block (a name, a quoted line) may be highlighted alongside the AI text. Highly formulaic human writing can occasionally mimic AI patterns, but false positives are rare. Treat the AI score as a strong indicator — use your own judgment as the final call.
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Chantell3 L.
May 23, 2026
This software is useless
This software is useless, it detect plagiarism in singe words, in parts of the template my school has forced us to use or in statements i have clearly written myself about my opinion. "I think" should not be flagged, single words should not be flagged. Ive had to remove entire sentences just to appease the software only for it to increase my score somehow.
Response from CopyleaksJun 2, 2026
Hey Chantelle, thank you for your feedback - we will surely look into it. You are always welcome to reach out for our support as well, and get help to any problems you might encounter reach out for us directly on https://help.copyleaks.com/s/contactsupport
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Raul Lull I.
May 18, 2026
ROBO
La cantidad de créditos (palabras a analizar)es completamente rdicula, un autentico robo, con dos documentos te lo fundes, no pagueis el plan de pago, es un timo
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LUCA B.
May 17, 2026
Just bad
Just bad. Should let you keep the credit you pay for, or actually, pay for one month with unlimited text you can scan. But surely they care more about their profit.
Response from CopyleaksJun 16, 2026
Hey Luca! Thank you for your feedback. The subscription plans give you access to all of our advanced features, but like any other plan, they have fair usage limits - and this is what the credits are for. It is your choice on how to use your monthly/yearly limits. Feel free to reach out to us for more information here: https://help.copyleaks.com/s/contactsupport
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Ahmad O.
May 5, 2026
Very expensive and low performance…
Very expensive and low performance compared to other tools.
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Up B.
Apr 28, 2026
terrible software
terrible software, make mistakes for all the time. How come the app can claim 100% ai content while the assignment is done by person? How come the honest students need to use more and more time to waste on changing words created hard by myself in order to lower the percentage. Stupid app forever, how could you claim yourself leading softward?
Response from CopyleaksApr 29, 2026
Hey there, we are sorry that you feel your paper was flagged incorrectly. There are many reasons why something would get flagged as AI, e.g., usage of tools like Grammarly. We have much more data and information on what is AI detection exactly and how it works right here: https://copyleaks.com/ai-detection-hub
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Dositeo G.
Apr 25, 2026
Es ridículo
Es ridículo. dile a una IA que te haga un texto un relato o cualquier cosa.. copialo repite 4 o 5 veces. Tu sabes que es texto de IA ... pero este detector te dira que es humano. Aunque sea obviamente de IA porque no tiene coherencia . Lo mismo. Ponle la letra de una cancion poco conocida y te dira que es una IA. aunque sea una cancion de los 90... Si alguien considera que esto funciona.. es porque es tan poco habil que no se ha parado a comprobarlo antes de aceptar lo que dice. No tiene sentido no sirve ni para engañar. y si alguien cree que funciona es porque no ha comprobado y ya es triste que una IA te engañe
Response from CopyleaksApr 29, 2026
Hey Dositeo - unfortunately, no system is fully bulletproof, but our detection accuracy keeps surpassing our competitors'. We are always improving and optimizing our detection mechanism to stay up to date, even against the newest models. Thank you for the feedback!
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