Base64 Decoder

Decode Base64 encoded data back to text, hexadecimal, binary, or download as files.

Length: 0
Valid Base64

Decode Information

Output Type: Plain Text

Encoding: UTF-8

Supports: Standard Base64, URL-safe Base64, Data URLs, Multi-line format

💡 Tips

  • • Base64 decoding converts ASCII text back into its original binary format
  • • File output automatically detects MIME types and suggests appropriate file extensions
  • • Data URLs starting with 'data:' are automatically detected and preserve MIME type information
  • • URL-safe Base64 uses '-' and '_' instead of '+' and '/' characters
  • • Whitespace in Base64 input is automatically ignored during decoding
  • • Large Base64 strings can be decoded back to their original file format
Privacy Notice:

Processing is ephemeral. Your files are handled in-memory and never stored or retained on the server. They are discarded immediately after the operation finishes.