Encoder

Multi-pass encoder. Counterpart to Decoder. Useful for crafting test payloads, replicating attacker obfuscation chains, and quickly producing base64/url/hex/binary/rot13 forms. Pure client-side; nothing leaves your browser.

Chains apply left-to-right: url → base64 first URL-encodes the input, then base64-encodes the URL-encoded form. Use the round-trip button to verify the chain decodes cleanly.