Base64 encoder
Encode text or files to Base64 and decode Base64 back to text or a file. URL-safe Base64 and data URLs are supported.
No uploads · Everything runs in this browser
FAQ
Are files uploaded?
No. Files are read and converted inside this browser and never leave your device.
What is URL-safe Base64?
It replaces + and / with - and _ and drops the trailing = padding, so the result can be used in URLs and JWTs without escaping. Decoding accepts both forms.