What is P-captcha?
P-captcha is an open source proof-of-work CAPTCHA solution designed specifically for bot protection. It distinguishes itself by being truly lightweight—just 2KB gziped—and having zero dependencies, making it easy to integrate and run efficiently in the background through web-workers. This tool is fully self-hosted and developer friendly, supporting both visible and invisible verification modes, allowing for seamless user experiences.
P-captcha is highly customizable, enabling developers to override styles and behaviors to fit unique application requirements. Ideal for securing forms, API endpoints, and user authentication flows, it provides powerful protection against spam, scraping, DDoS attacks, and account takeover attempts without burdening end-users or server resources.
Features
- Proof-of-Work CAPTCHA: Provides robust bot protection using computational challenges.
- Ultra Lightweight: Only 2KB gziped with zero dependencies, ensuring fast loading times.
- Invisible or One-Click Verification: Offers both seamless and manual interaction modes for users.
- Self-Hosted Solution: Runs entirely on your infrastructure for maximum privacy and control.
- Fully Customizable: Allows complete override of styles and behaviors to match application needs.
- Developer Friendly: Easy integration with comprehensive code examples and open source access.
Use Cases
- Protecting web forms from spam submissions
- Securing API endpoints against DDoS attacks
- Preventing automated account creation and brute force attempts
- Defending platforms from scraping and abuse automation
- Replacing traditional CAPTCHAs with a lightweight, open source alternative
FAQs
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Is P-captcha suitable for self-hosted deployments?
Yes, P-captcha is specifically designed for self-hosted integration, providing complete control over your bot protection solution. -
Can the appearance and behavior of the CAPTCHA be customized?
Yes, P-captcha allows developers to fully override its style and customize its behavior to fit application requirements. -
How does P-captcha verify users invisibly?
It includes an invisible component that can solve the challenge when mounted, offering a seamless verification experience for users. -
What kind of attacks does P-captcha protect against?
P-captcha safeguards against spam, scraping, automated submissions, DDoS attacks, and credential stuffing.
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P-captcha Uptime Monitor
Average Uptime
100%
Average Response Time
166.73 ms
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