Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to UTF-8 text in your browser.

FreeNo signupRuns in your browser

Enter your values

Text or Base64

How to use Base64 Encoder / Decoder

  1. Enter Input, Mode.
  2. Choose the options that match your task and leave genuinely optional fields blank when they do not apply.
  3. Select Calculate / Run and review the result panel.
  4. Check units, assumptions and any limitations shown on the page before using the result for an important decision.

About this tool

Encode text to Base64 or decode Base64 back to UTF-8 text in your browser. Use the form above to enter Input, Mode. The calculation or transformation runs locally in your browser.

Frequently asked questions

What does Base64 Encoder / Decoder do?

Encode text to Base64 or decode Base64 back to UTF-8 text in your browser.

What information do I need?

The form is built around these inputs: Input, Mode.

Does my input get uploaded?

For this tool, the calculation or transformation runs in your browser. Your entered values are not intentionally sent to ToolboxKart for processing.

Is this tool free to use?

Yes. You can use this ToolboxKart tool without creating an account.

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