Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text, with full UTF-8 support and a URL-safe option.

Runs in your browser. Your data never leaves your device.

How to use the Base64 Encode / Decode

  1. Enter your text, numbers or file in the box above.
  2. Choose the options you want and press the main button.
  3. Copy or download the result. Nothing is stored on our server.

About this tool

Base64 turns any text or data into plain ASCII characters so it can travel safely through email, URLs, JSON and HTML. Encode text, decode a Base64 string back to readable text, or use the URL-safe alphabet.

Frequently asked questions

Is Base64 encryption?

No. It only changes how data is written; anyone can decode it. Use it for transport, never for secrets.

What is URL-safe Base64?

It replaces + and / with - and _ and drops the = padding, so the string can sit inside a web address.

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