4coders

Base64 Encoder & Decoder

Encode & decode Base64 — URL-safe, UTF-8 aware.

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Output

About this tool

Base64 is an encoding scheme that turns binary data into an ASCII string using 64 characters. It is commonly used for embedding images in CSS/HTML, basic auth headers, and transferring binary over text protocols.

Common use cases

  • Encode/decode data URIs or basic auth credentials
  • Inspect or repair Base64 in API responses and configs
  • Convert between text and binary representations safely

Further reading

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