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SealedReturn
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Live demo

See encryption + AI vision in 60 seconds.

No signup. No payment. The same libsodium pipeline you'd use as a paying customer — running on a sample W-2 right now.

Demo lives at app.sealedreturn.com/demo

The interactive demo runs on the product app subdomain (where the libsodium + WebGPU + Claude integration lives). Click below to launch it in a new tab.

Launch live demo → Read the architecture

Demo is rate-limited per-IP to prevent abuse. Powered by Anthropic Claude Haiku for cost-efficient AI vision.

What the demo shows

The full flow, on a sample W-2.

  1. 1 You upload (or drag-and-drop) a sample W-2 image.
  2. 2 Your browser derives an encryption key from a demo password using Argon2id (~750ms).
  3. 3 Your browser encrypts the photo with libsodium (XChaCha20-Poly1305).
  4. 4 You see the ciphertext briefly (Base64 preview) — proof that what leaves your device is opaque.
  5. 5 The encrypted blob is sent to our server, which stores it as ciphertext.
  6. 6 When AI extraction runs, the server decrypts in transient memory and sends to Claude vision.
  7. 7 Claude returns structured field data (Box 1, Box 2, Box 3, etc.) with confidence scores.
  8. 8 A Form 1040 PDF is populated client-side and offered for download.