BlindPaste

2026

• Zero-knowledge by design
  • Content is encrypted in the browser with the Web Crypto API
  • The server only ever stores ciphertext
• Decryption keys never leave the client
  • The key lives in the URL fragment
  • Fragments are never sent in an HTTP request
• Optional passphrase and burn-after-reading

• React
• PostgreSQL
• C#/.Net

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Dev Tools

2026

• Text transforms
  • Case conversion, join and split lines by a delimiter
  • Find and replace, with optional regex
• Inspect and compare
  • JSON formatting, compacting, and diffing
  • JWT decoding for header, payload, and signature
  • Side-by-side text diff and live Markdown preview
• Generate and convert
  • UUID v4, single or batch
  • Timezone conversion between UTC, EST, PST, and others
• Built because the alternative is pasting work data into someone else's website

• React
• Tailwind

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