Hey Product Hunt, I built ImageSteg because every "hide a file in an image" tool I tried wanted me to upload my file to someone else's server. That kind of defeats the point of hiding something. So this one does everything inside the tab: drop in an image or an audio file, add the file or message you want to hide, set a passphrase, download the result. There is no server step, so there is nothing to leak. What is under the hood: · A browser port of steghide 0.5.1 — both of its methods: LSB for BMP and PNG, DCT coefficients for JPEG · Audio carriers too: PCM WAV (one bit every two samples) and MP3 (the unused tail of its frame data) · AES-256 (Rijndael/CBC) using the same scheme as the steghide CLI, plus an optional CRC32, so a wrong passphrase warns you instead of handing back garbage · Compression, and the capacity your container can hold, shown before you hide anything · The BMP output can be opened with the steghide command line tool Who it is for: anyone who needs to move a file quietly — journalists, researchers, CTF players — or anyone who just likes the idea of a secret drawer inside a photo. Two honest caveats, because steganography has sharp edges: · Any re-compression destroys the data. Keep the file this tool gives you. · It hides that data is there. It does not make the container tamper-proof, and it is not a substitute for real encryption at rest. It is free, no signup, no file size games. I would love your feedback: which carrier would you reach for first — JPEG, PNG, WAV or MP3? And if there is a container you wish it supported, tell me

ImageSteg

Hide files in images and audio, right in your browser

Hide files in images and audio, right in your browser