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1–19 of 19 · Most stars

DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

All parts of Claude Code's system prompt, 27 builtin tool descriptions, sub agent prompts (Plan/Explore/Task), utility prompts (CLAUDE.md, compact, statusline, magic docs, WebFetch, Bash cmd, security review, agent creation). Updated for each Claude Code version.

Sandstorm is a self-hostable web productivity suite. It's implemented as a security-hardened web app package manager.

  • capnproto
  • decentralized
  • sandstorm
  • seccomp

Excel XLSX parser/generator written in JavaScript with Node.js and browser support, jQuery/d3-style method chaining, encryption, and a focus on keeping existing workbook features and styles in tact.

Fast and dependency-free cryptographic hashing library for node.js and browsers (supports MD5, SHA1, SHA256, SHA512, RIPEMD, HMAC)

  • hashing-algorithm
  • javascript
  • hmac
  • hexadecimal

Self-hosted, invisible CAPTCHA that detects AI agents driving real browsers. GDPR, WCAG 2.2 AA, and EAA: no cookies, no third-party data sharing, and no visual or audio puzzle. With a false-positive budget enforced in CI. Proof of work, drop-in for Turnstile and reCAPTCHA.

  • anti-bot
  • behavioral-analysis
  • bot-detection
  • captcha