Base64 Encoder/Decoder

Fast Base64 encoding and decoding with instant results. Essential for CTF challenges and API testing.

Input Text

Base64 Output

Base64 Input

Decoded Output

Common Uses

Decode Base64-encoded flags and hints

Encode credentials for Basic Auth

Encode binary data for text protocols

Analyze encoded strings in logs

Padding: Base64 strings should end with = or == for proper padding

Multiple Encoding: Data can be encoded multiple times - try decoding repeatedly

Binary Data: Base64 is commonly used to encode images and files in text format