The captcha everyone can use

An accessible captcha without cognitive load which creates satisfying user experiences that benefit everyone. Even your lawyers.

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Simplicity

Captcha without cognitive load

Traditional captchas don't just block bots - they block real people too, especially those with disabilities. Private Captcha is as simple as clicking a button that everyone can do, even tired.

Speed

Minimal overhead for users

Private Captcha script is about 7.5% of the size of Google reCAPTCHA (before compression) and helps to make your website load faster.

Interface

Invisible CAPTCHA

Captcha with truly invisible mode, unlike ~~reCAPTCHA~~ other solutions that show a popup even when "invisible".

Interface

Fully customizable UI

With Private Captcha, you can change not only theme or language, but even low-level CSS properties to perfectly integrate it on your website. Hooks and events are offered too so a completely custom visualization is possible.

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

Frequently Asked Questions

How Private Captcha is different from other Proof-of-Work solutions?

Unlike other solutions, that only have client-side code open, Private Captcha's backend code is also publicly available, making it easy to verify how user data is handled. Additionally, you can host Private Captcha on premises inside your own organization.

How do I add Private Captcha on my website?

Private Captcha comes with many pre-built integrations for popular online platforms, such as WordPress, and packages for many popular programming languages (Javascript, Python, etc.). Additionally, our documentation provides detailed setup and migration guides and integration examples.

Can we use Private Captcha if our compliance requires strict EU-only data sovereignty?

Private Captcha is powered by exclusively European suppliers. If you want to ensure that no data is transferred to other countries due to geographic routing, you can also use our EU-only API endpoints.

Does Private Captcha share your data?

The data we collect belongs to you. We do not collect PII and aggregated data we do collect is not shared with any third-parties. Outside of the hosting companies that own servers on which data is stored, no other vendor can access it.

Do you offer a signed DPA?

Our DPA is part of our Terms and is binding upon acceptance of those terms - when you create your account you have to accept it. If you require a formally signed separate copy for your records, please contact support and we will provide you a digital version for your countersignature.

Can I customize how the Private Captcha widget looks like?

The Private Captcha widget offers two color themes (light and dark) and also allows to do lower-level customization, using CSS, ensuring seamless integration with your website. Additionally, you can hide the captcha widget altogether and make your custom UI integration, all while keeping security benefits.

Compare with others

User-friendly
Humans don’t need to prove they’re human
GDPR-compliant
Self-hosting
Difficulty scaling
The more bots try, the harder it gets
EU-only endpoints
Real Human support
No AI chatbots ever

Google reCAPTCHA

Grey area (at best)

Private Captcha

CloudFlare Turnstile

Quite likely
Enterprise tier only

Protect your forms and APIs from abuse

Independent, privacy-first, self-hostable CAPTCHA service made in EU