Encoders & Ciphers
Encoders convert text into a different representation and back again: Base64 for tokens and data URLs, percent-encoding for query strings, 8-bit binary, and the classic ROT13 and Caesar ciphers. These are encodings, not encryption — they provide no security, only a change of format.
ROT13 Cipher
Encode/decode text using ROT13 algorithm
Caesar Cipher
Encode/decode text using Caesar cipher (shift by 3)
Binary Code Translator
Convert text to binary code or binary back to text
Base64 Encode
Encode text to Base64
Base64 Decode
Decode Base64 back to text
URL Encode
Percent-encode text for use in URLs
URL Decode
Decode percent-encoded URL text