Add an invisible watermark to images using LSB steganography. Imperceptible to the eye, detectable by tools.
Upload your image
Enter your watermark text or identifier
Download the watermarked image — looks identical to the original
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
0 bytes uploaded. Invisible Watermark runs entirely in your browser using Canvas API and WASM. Your image stays on your device at all times. No data is sent to any server.
Yes — it modifies the least significant bits of pixel data. The change is imperceptible to the human eye.
Encode hidden text messages inside image pixels using LSB steganography. Also decode hidden messages.
Open toolRemove all EXIF data from photos — GPS location, camera model, timestamps. Protect your privacy before sharing.
Open toolStamp a diagonal text watermark across images. Set custom text, opacity, font size, and color.
Open tool