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Base64 Encoder / Decoder

Encoding

Encode and decode UTF-8 text as Base64.

Parameters
Input
Output
Auto-calculate
0 characters · 0 bytes

Use cases

When to use Base64 Encoder / Decoder

Encode and decode UTF-8 text as Base64.

1Inspect an encoded field in an API response
2Prepare a text data URL for a debugging example
3Check how Chinese or emoji text becomes Base64
4Compare the text encoding observed by a proxy, gateway, and application service
5Generate or restore an encoding format required by a legacy system
6Diagnose garbled multilingual content and cross-region request data

Guidance

Get reliable results

  1. 1Encode the original text as UTF-8 before comparing results
  2. 2Use URL-safe output only where the receiving system expects it
  3. 3Treat encoded credentials as sensitive data
This utility handles text rather than arbitrary binary uploads. Base64 is encoding, not encryption.

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