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Base64 Decoder for Binary Data

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APIs often Base64-encode binary data for JSON transport. Decode locally.

Example

[Paste Base64-encoded binary data from API responses]
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Tips

  1. 1Garbled output = binary. Download as file.
  2. 2Common: PDFs, images, protobuf.
  3. 3Check for = padding.

Frequently Asked Questions

Text or binary?

Readable = text. Garbled = binary file.

Max size?

Several MB. Use command-line for larger.

From JSON?

Extract Base64 string (no quotes) and paste.