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Base64 File Decoder

Restore binary files from Base64 encoded text. Support for all file types including ZIP, PDF, images, and executables.

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aboutTool

Base64 File Decoder decodes Base64 text strings back into their original binary file formats (Images, PDFs, ZIPs, etc.). Perfect for retrieving actual files from Data URIs or JSON payloads.

howToUse

  1. Paste the Base64 string into the input box
  2. Specify the file name and extension or use the auto-detected info
  3. Click Decode & Download to save the restored binary file

features

  • Support for all binary file formats
  • Automatic MIME type detection
  • Stable decoding for large data strings
  • Integrated file preview (Images/PDFs)
  • Secure local device processing
  • Instant one-click direct download

faq

What file types are supported?

Any file that was encoded into Base64 (JPG, PNG, PDF, ZIP, etc.) can be fully restored.

Is there a size limit?

The limit is defined by your browser's available memory, usually supporting several hundred MBs.