Plagiarism Detector Web - Credits & Plans

Check essays, theses and articles for plagiarism and AI-written text in one report, in the browser. Pay once for credits, or subscribe if you check every week.

How many credits do you need?

20 credits

5 20 60 200

20 credits

$0.90 per credit · valid 12 months · ≈ 20 documents

$17.99

7-day pass

A deadline this week? 25 credits for 7 days, $9.99, no renewal.

Starter

$99.99/year

= $8.33/month

30 credits every month · $0.28 per credit

Full report with matched sources
PDF report
90-day history

Run out early? Refill +30 credits for $9.99, any time.

Pro

$199.99/year

= $16.67/month

100 credits every month · $0.17 per credit

Everything in Starter
Batch upload, 20 files
Priority queue
Full history

Run out early? Refill +100 credits for $19.99, any time.

Team

$499.99/year

= $41.67/month

300 credits every month · $0.14 per credit

Everything in Pro
3 users
Batch upload, 100 files
Shared history

Run out early? Refill +300 credits for $49.99, any time.

Starter

$9.99/month

30 credits every month · $0.33 per credit

Full report with matched sources
PDF report
90-day history

Run out early? Refill +30 credits for $9.99, any time.

Pro

$19.99/month

100 credits every month · $0.20 per credit

Everything in Starter
Batch upload, 20 files
Priority queue
Full history

Run out early? Refill +100 credits for $19.99, any time.

Team

$49.99/month

300 credits every month · $0.17 per credit

Everything in Pro
3 users
Batch upload, 100 files
Shared history

Run out early? Refill +300 credits for $49.99, any time.

FREE 1 free check a day with or without an account · plagiarism and AI scores, top sources 1 credit = a document of up to 3,500 words

Every paid credit includes

Web search and the academic database
AI-written text detection in the same report
Matched sources with highlighted passages
Downloadable PDF report
Check history in your account
Credits back if a check fails

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Frequently Asked Questions

What is a credit?

One credit checks a document of up to 3,500 words for plagiarism and AI-written text. A 10,000-word thesis uses 3 credits. You always see the cost before the check starts.

Is a longer document checked as thoroughly?

Yes. Every 3,500 words get the same number of web searches, so a 100-page thesis is covered as closely as a 10-page essay. Documents of up to 105,000 words can be checked.

Do credits expire?

Pack credits are valid for 12 months. Plan credits arrive every month and do not roll over; a yearly plan delivers them month by month. The 7-day pass ends 7 days after purchase.

Is it still free?

Yes. Everyone gets one free check a day, up to 3,500 words, with the plagiarism and AI scores and the top sources. Paid credits add the full report, the PDF and your history.

Can I cancel a plan?

Any time, from your account. Your credits stay usable until the end of the paid period.

What if I run out mid-month?

Refill your plan with one click, or buy any pack - the extra credits never touch your billing date.