Privacy CAPTCHA for Cap is a WordPress plugin that integrates the open-source Cap proof-of-work CAPTCHA into comments, login, registration, WooCommerce, and Gravity Forms. It offers privacy-friendly spam protection by running verification on the user's own infrastructure.
In the Security & compliance platforms space, Privacy CAPTCHA for Cap takes a focused approach. It focuses on providing privacy-friendly, self-hosted spam protection for WordPress forms and e-commerce checkouts. Privacy CAPTCHA for Cap is a B2B product aimed at wordPress site owners seeking privacy-focused spam protection. Privacy CAPTCHA for Cap is free to use. It runs on the web.
Daniel Sturm builds and maintains Privacy CAPTCHA for Cap, and it first shipped in 2026. Key capabilities include CAPTCHA integration, proof-of-work, and Gravity Forms support. The interface is available in English and Chinese.
Summary written by a language model from the project’s public pages.
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