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Data URI Decoder

Decode data URIs to inspect media type metadata and recover the embedded text payload.

decodebase64url
Formatting Options
Preview the shared config renderer across simple, choice-based, and multi-select settings.
Output mode

Choose whether to show decoded content, metadata, or both.

Show metadata plus decoded content.

Features
  • Metadata parsing

    Extract media type, parameters, and Base64 flags from the data URI.

  • Content decoding

    Recover embedded text payloads from percent-encoded or Base64 data URIs.

  • Flexible output

    Show decoded content, metadata, or both together.

  • Privacy first

    All processing happens in your browser.

Quick Tips
  • This is especially handy for inspecting data URIs copied from HTML, CSS, or API payloads.
  • Combined mode is useful when you want both the metadata and the recovered content.
  • This version is best for text payloads; binary assets are better handled by the dedicated viewing tools.
  • Nothing is uploaded while decoding.

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