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ZIP encryption, explained
Posts on how ZIP password protection works, how to tell whether an archive is encrypted, how in-browser recovery runs, and how to store a passphrase so you do not lose it.
Protecting ZIP Archives and Password Managers
Protect ZIP archives the right way: choose AES, pick a strong passphrase, and let a password manager generate, store, and share it safely.
DetectionHow to Identify an Encrypted ZIP File
Is your ZIP actually encrypted, and with what? Learn the signs, the format markers that distinguish ZipCrypto from AES, and the tools that report them.
Local RecoveryHow Browser-Based ZIP Recovery Stays Private
How in-browser ZIP recovery uses the File API and WebAssembly to test passwords locally, so your archive never leaves your device or gets uploaded.
ZIP EncryptionHow ZIP Password Protection Works
Follow a ZIP password from the moment you type it to the unlocked file: how ZipCrypto and WinZip AES turn it into a key, and how a tool confirms a guess.
Ready to recover your ZIP password?
Runs locally in your browser. Your archive never leaves your device.