Hasty Briefsbeta

Show HN: Secure private diffchecker with merge support

18 hours ago
  • #developer tools
  • #privacy
  • #diff checker
  • Diffchecker.dev is a fast, secure, and fully client-side online diff checker.
  • It compares text, code, JSON, or XML instantly with no uploads and no sign-in.
  • All diff comparisons run in your browser, ensuring complete privacy.
  • Features include instant comparison, character-level granularity, and seamless merge changes.
  • Handles large files (25k+ lines) and is optimized for JSON, XML, and YAML.
  • No server uploads — all operations are performed locally in your browser.
  • Shareable links encode the diff directly in the URL for secure sharing.
  • Free for both personal and commercial use with unlimited comparisons.