Developer Utility

Base64 Encoder / Decoder

Encoding

Encode and decode Base64 with UTF-8 and Base64URL support

Your data is processed locally in your browser. Nothing is uploaded.

What is Base64 Encoder / Decoder?

Base64 Encoder / Decoder is a free online tool that helps developers encode and decode base64 with utf-8 and base64url support. All processing is done locally in your browser — no data is sent to any server.

How to use

  1. Open the Base64 Encoder / Decoder tool above.
  2. Enter or paste your input in the text area.
  3. Click the action button to process your data.
  4. Copy the result to use in your project.

Use Cases

  • Quick data transformation during development.
  • Debugging and inspecting data formats.
  • Learning and experimenting with different formats.

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