Cap CAPTCHA

Cap is a privacy-first, self-hosted CAPTCHA system designed as a modern alternative to traditional third-party verification services. It replaces invasive tracking-based CAPTCHA solutions with a lightweight approach based on proof-of-work and client-side instrumentation. The system can be deployed independently, giving developers full control over user data and verification processes. It integrates easily into web applications and focuses on maintaining usability while preventing automated abuse. Cap avoids reliance on centralized providers, reducing dependency on external services and improving privacy compliance. Its design reflects a shift toward decentralized, user-respecting security mechanisms. It is particularly suited for developers who want transparent and customizable bot protection.

Features

Self-hosted CAPTCHA system for full control
Privacy-first design without third-party tracking
Proof-of-work based bot verification
Lightweight client-side instrumentation
Easy integration into modern web apps
Decentralized alternative to traditional CAPTCHA services

Project Samples

Project Activity

See All Activity >

License

MIT License

Follow Cap CAPTCHA

Cap CAPTCHA Web Site

Other Useful Business Software

Enterprise-grade ITSM, for every business

Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.

Try it Free

Rate This Project

User Reviews

Be the first to post a review of Cap CAPTCHA!

Additional Project Details

Programming Language

JavaScript

Related Categories

JavaScript Libraries

Registered

2026-04-28

Similar Business Software

SurveyJS

SurveyJS is an embeddable, self-hosted, white-label form builder for teams building custom forms, surveys, questionnaires, and other data collection tools inside web applications. It runs entirely on the client and is fully compatible with all modern JavaScript frameworks, including React,...

See Software
Webix

JavaScript UI library and framework for speeding up web development. JS Framework for cross-platform web Apps development 102 UI widgets and feature-rich CSS / HTML5 JavaScript controls. Save at least 3000+ development hours by using ready-made widgets and UI controls. Develop Web UI 30% faster....

See Software
DHTMLX

DHTMLX is a JavaScript UI library that provides a set of highly customizable and flexible components for building modern and responsive web applications. The library includes more than 30 UI components, such as Gantt, Scheduler, Kanban, diagrams, charts, grids, spreadsheets, calendars, trees,...

See Software
VisuallyJs

VisuallyJs is a JavaScript and TypeScript library for building professional diagrams, charts, dashboards, and rich graphical front ends. The platform supports React, Angular, Vue, Svelte, JavaScript, and TypeScript, giving development teams flexible options for building visual applications....

See Software
Bryntum

Bryntum is a leading provider of high-performance scheduling solutions for the web. Our suite of JavaScript components—including Gantt, Scheduler, Task Board, and Calendar—enables developers to build modern project management applications with features like drag-and-drop scheduling, resource...

See Software
Backbone.js

Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface. When working on a web...

See Software