Base64 Decode

Instant results, right in your browser.

The Base64 Decode tool converts Base64-encoded text back into its original readable form. Paste your encoded string and get the decoded output instantly, directly in your browser.

Base64 encoding is commonly used to embed binary data (images, files) inside text formats like JSON, HTML or email. This tool reverses that encoding so you can inspect or use the original content.

How to Decode Base64

  • Paste your Base64 string into the input box
  • Click Decode
  • Copy the decoded result

Best Practices

  • Ensure your input is valid Base64 (no extra whitespace or line breaks) for accurate decoding
  • Keep sensitive encoded data out of any online tool if privacy is a concern

This tool is free to use with no signup required.

Frequently Asked Questions

What is Base64 encoding used for?

It converts binary data into text-safe characters so it can be embedded in formats like JSON, XML, HTML or email that expect plain text.

Is my data sent to a server?

No, decoding happens entirely in your browser using JavaScript. Your data is never uploaded or stored.

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