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Base64 Encoder

Encode and decode text or files to and from Base64.

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About Base64 Encoder

The Base64 Encoder/Decoder on Zynocode Labs lets you encode plain text or files to Base64 and decode Base64 strings back to readable content — all in your browser. Base64 is widely used in APIs, email attachments, and data URLs.

How to Use the Base64 Encoder

  1. 1Select "Encode" or "Decode" mode
  2. 2Paste your text or upload a file
  3. 3The result appears instantly in the output pane
  4. 4Click "Copy" to copy the result to your clipboard

Frequently Asked Questions

What is Base64 used for?

Base64 is used to encode binary data (like images or files) into text format for safe transmission in JSON payloads, emails, or URLs.

Can I encode images to Base64?

Yes. Upload any image file and get its Base64 data URL immediately.

Is URL-safe Base64 supported?

Yes. The tool supports both standard Base64 and URL-safe Base64 (using - and _ instead of + and /).