Developer Tools

Base64 Encode Decode Online

Use Base64 Encode Decode to encode or decode Base64 text. This developer utility runs locally in your browser and creates Base64 or decoded text.

Encode or decode instantly Browser-only Unicode supported
Direction
Base64
Input

Encoding and decoding happen entirely in your browser

How to use it

  1. 1 Paste the relevant text, command, URL, token, or data into the input panel.
  2. 2 Adjust any visible options such as mode, pattern, count, or path.
  3. 3 Run the tool in your browser.
  4. 4 Review the output, then copy or download it.

Use cases

  • Debug snippets during development
  • Inspect encoded, formatted, or structured text before using it
  • Handle small local utility tasks without opening a larger app

Limitations

  • Text is encoded and decoded locally using UTF-8 handling.
  • Very large input can be slower on older devices.
  • This utility is designed for common snippets and local inspection, not as a full security or language-specific validator.

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FAQ

Does Base64 Encode Decode upload my input?

Your file or text is processed in your browser and is not uploaded.

What does Base64 Encode Decode output?

It outputs Base64 or decoded text. Text is encoded and decoded locally using UTF-8 handling.

Should I review Base64 Encode Decode output before using it?

Yes. Developer formats and snippets can be context-sensitive, so review generated output before using it in production.