/ local steganography
StegoVault
Encrypt text locally, hide it in a PNG, and decode it without uploading the carrier.
PNG recommended · Local processing · Decoded text auto-wipes
- Select carrier
- Protect payload
- Export result
1
Select carrier
Choose a PNG that will carry the encrypted envelope. The image never leaves this browser.
Required
2
Protect payload
The message is encrypted with Argon2id and XChaCha20-Poly1305 before embedding.
0 B
Capacity is estimated from the actual UTF-8 payload plus envelope overhead. The encoder performs the final byte-level check.
Burn after decrypt
Requests a local wipe after opening.
Advanced privacy options
Decoy passphrase
Reveal a different message for a second passphrase. This is experimental and not coercion-proof.
3
Export result
Download the generated PNG before clearing local state.
Waiting
No export yet
Complete the carrier and protection steps to generate a downloadable PNG.