Base64 Encode/Decode
Encode or decode Base64 strings and files.
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🔒 Processed locally — your data never leaves your device.
How to Use Base64 Encode/Decode
- 1Open the Base64 Encode/Decode tool on this page.
- 2Enter your input — paste text, upload a file, or fill in the required fields.
- 3Get instant results processed entirely in your browser.
- 4Copy the output or download your file with one click.
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Frequently Asked Questions
Is Base64 Encode/Decode free?
Yes, completely free. No registration required.
Do my files get uploaded?
No. Base64 Encode/Decode runs entirely in your browser. Nothing is sent to a server.
Is there a file size limit?
No artificial limits. Processing is limited only by your device's available memory.
Does Base64 Encode/Decode work offline?
Yes, once the page is loaded, the tool works without an internet connection.