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Base64 Local

Encode and decode text and files in Base64 format instantly. Everything is processed in your browser.

PopularNo uploadFreeNo limits
Inputplain text
Outputbase64
Result will appear here...
Input 0 BOutput 0 B 🔒 Everything is processed on your device. Nothing is uploaded to our servers.
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Frequently asked

Base64 is an encoding system that converts binary data into an ASCII text string. It's commonly used to transmit data through protocols that only support text, such as emails or URLs.

Yes, completely. All processing is done directly in your browser. Your text and files are never sent to any server.

For text, there is no practical limit. For files, it depends on your browser's memory, but it generally works well with files up to 50 MB.

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