In-browser tool
Base64 encode & decode
Encode text to Base64 or decode it back — instantly in your browser.
How it works
01
Type or paste your input
02
Get the result instantly
03
Copy the result
Frequently asked questions
Is my text uploaded?
No. Encoding and decoding happen entirely in your browser; your text never leaves your device.
Is my file uploaded to a server?
No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.