Encoding Tools

Base64 Decoder

Convert Base64 back to text with support for data URIs and file decoding

Base64 Input
Decoded Output

Enter Base64 on the left to decode.

About Base64 Decoding

Base64 decoding converts Base64 encoded strings back to their original text or binary format. This tool supports:

  • Standard Base64 encoded text
  • Data URIs (automatically extracts Base64 data)
  • URL-safe Base64 variants
  • Padded and unpadded Base64
  • UTF-8 encoded text
Tips
  • Whitespace in the input is automatically removed
  • When pasting a data URI, the Base64 part is automatically extracted
  • The decoder validates the input format before attempting to decode