Base64 Encode/Decode
Convert text to and from Base64, entirely in your browser.
About Base64 Encode/Decode
Base64 Encode/Decode lets you encode and decode Base64 text instantly — free, and without creating an account. Convert text to and from Base64, entirely in your browser.
Base64 Encode/Decode runs entirely in your browser. Nothing you enter is sent to a server, so your text stays on your device. It is instant and works offline once the page has loaded.
Because it is web-based, Base64 Encode/Decode works on any operating system — Windows, macOS, Linux, Android, and iOS — straight from your browser, with nothing to install.
How it works
Open the tool
Load Base64 Encode/Decode in your browser — no signup or download needed.
Enter your input
Type or paste your text into the field.
Get the result instantly
The output updates as you go, computed entirely on your device.
Copy or save it
Copy the result to your clipboard or download it — nothing is sent to a server.
Frequently asked questions
Is Base64 Encode/Decode free?
Yes. Base64 Encode/Decode is completely free to use, with no signup and no limits on how many times you can use it.
Is my data sent anywhere?
No. Base64 Encode/Decode runs entirely in your browser. Your text is never transmitted to a server.
Do I need to install anything?
No installation is required. Base64 Encode/Decode runs in any modern web browser on desktop or mobile.
Is this private?
Yes. Base64 Encode/Decode runs entirely in your browser using your device's own processing power. Your files are never uploaded to a server, so nothing leaves your computer.