Smart difficulty scaling
Automatic adjustment of captcha challenge complexity in real time
Free for non-commercial use
Bot protection you host yourself
Private Captcha is a user-friendly solution that protects forms and APIs from abuse and is too costly for bots to bypass
- GDPR-compliant
- Privacy-first
- User-friendly
- Transparency
- No cookies
Why switch
Same great features
Access same features as with the managed solution at privatecaptcha.com, but on your premises.
Custom rules
Customize CAPTCHA puzzle difficulty for your unique use-case
Audit logs
Easy compliance with account audit history
Platform API
Automate creation, editing, or deletion of orgs and domains via HTTP API
Usage statistics
Domain- and account-level statistics of captcha requests and verifications
Widget customization
Different visual themes, more than 10 localizations, popup/hidden modes and more
Don't want to take care of self-hosting? Use the managed version.
Built differently
Designed for humans, not machines
Lightweight
Our script is 7% of the size of Google reCAPTCHA script
Enhanced accessibility
Multiple languages, screen reader friendly, WCAG 2.2 compliant
No frustrating puzzles
Does not depend on cognitive abilities of the user
No personal data tracking
Our Privacy Policy is simple - no personal data is collected
Clear and predictable
Simple Pricing
Commercial use of the self-hosted Private Captcha requires a license and is subject to the EULA.
Community
€19 /month
Price does not include VAT
- Commercial use allowed
- Full data ownership
- Unlimited requests
- Unlimited properties
- 1 organization
Enterprise
€199 /month
Price does not include VAT
Includes all Community features
- Unlimited organizations
- Email support
- Custom rules
- Audit logs
- Platform API
Question zone
Frequently Asked Questions
Instead of asking users to solve complex puzzles or track their behavior, Private Captcha solves an invisible cryptographic task in the background. The system automatically adjusts the task difficulty, ensuring smooth access for real users while making it too costly for bots to attempt. Cryptographic task provides equal security regardless of bot's intelligence level, making it effective even as AI technology improves. Which is hard to say about image/sound recognition tasks of other captchas.
On scale, bots exhibit different usage patterns and fingerprints statistics than real users. Detection of those patterns is part of the Private Captcha solution.
Private Captcha is considered to be used commercially when client integrations (website widget or client SDKs), connected to your installation, are used by for-profit legal entities or on websites that sell products or services. See license for details.
One license allows for a single installation of Private Captcha.
Email support during our business hours is included with Enterprise license only. Additional support services (e.g. setup help) are billed separately.
You can cancel your subscription at any time. Prepaid fees for monthly pricing are non-refundable.
While you can integrate self-hosted Private Captcha to your website or client application, it cannot be part of an offering where it forms a substantial part of the service or that competes with our managed offering.
Yes, you can use our SaaS API (e.g. api.privatecaptcha.com) via your own domain (e.g. privatecaptcha-api.mydomain.com). You can configure it in the Portal or contact support for more information.