Free • No signup • Works offline
Base64 Encoder & Decoder — Free Online Tool
Last updated: June 1, 2026
Encode and decode Base64 strings or files locally. Secure, client-side conversion for text and data URIs.
How to use this tool
1
1
Enter or paste your text data into the input field.
2
2
Click 'Encode Base64' or 'Decode Base64' depending on the operation.
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3
Copy the generated result to your clipboard using the copy button.
Frequently Asked Questions
What is Base64 Encoder?
Encode and decode text or files to Base64. It runs entirely in your browser without sending any data to a server.
Is this tool safe and private?
Yes, absolutely. Because the processing happens 100% locally in your browser (client-side), your data never leaves your computer.
Does it work offline?
Yes. Once you load this page, the underlying scripts are cached. You can disconnect from the internet and still use the tool.
Is there an API available?
Not currently. DevXTools is designed as a client-side interface for developers to run utilities quickly.
How much does it cost?
It is completely free to use without any sign-ups or limits.
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