Local and private
Transform text safely.
Your data stays in your browser.
Encode and decode Base64, Base64URL, and URL text accurately with full UTF-8 support.
InputOriginal text
0 characters0 KB
OutputBase64 result
Your result will appear here.
Waiting for input0 characters
100% client-sideNothing is sent to a server
Full UTF-8 supportWorks with every writing system and emoji
Base64URL supportIdeal for JWT and URL-safe payloads
Everyday encoding in one place
Convert API payloads, query parameters, Basic Auth values, and URL-safe tokens without uploading anything. Results are calculated in your browser as you type.