About Mega Joker
🎭 Turn everyday messages into secrets only the right person can read: Mega Joker is your private studio for ciphers and hidden messages.
🔐 Encode and decode text with six classic ciphers: Caesar Shift, ROT13, Atbash Mirror, Vigenère, Rail Fence and Keyed Substitution. Copy your result, save it, or spin it into a beautifully styled secret card to share.
🖼️ Go one step further and hide a message invisibly inside a photo. Mega Joker weaves your words into the pixels, locks them with an optional passphrase, then lets you save or send the image, the secret rides along unseen, ready to be revealed later.
🕵️ Stuck on a mystery message? The Cracker uses frequency analysis to rank the most likely Caesar shifts and surface the real text, while the Cipher Library teaches how each code works so you can try them yourself.
🔒 Best of all, everything happens offline on your device, nothing ever leaves it.
Encode, hide, reveal in Mega Joker.
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