123024.com · Invisible Watermark
Invisible Watermark hides a short text message in image LSBs and can later extract it for verification. Optional password derives a key so casual viewers cannot recover the payload.
Unlike a visible logo stamp, an invisible watermark encodes data into pixel noise that is hard to notice but recoverable with the same tool and password.
Use it to mark ownership or carry a private note inside a PNG without changing how the image looks.
1. Choose mode — Embed to write a message, Verify to extract one.
2. Enter message / password — Password is optional but must match for verify.
3. Download or read result — Embed exports a watermarked PNG; Verify shows the recovered text.
Will social networks keep the watermark? Re-encoding (JPEG recompress, screenshots) can destroy LSB data — keep the exported PNG when possible.
Is this encryption? It is steganography with optional keying, not a substitute for strong encryption of secrets.
Are images uploaded? No. Embed/verify runs locally.