Base64 Encoder/Decoder
Encode and decode standard or URL-safe Base64 text locally in your browser.
Questions
Can this handle Unicode text?
Yes. The encoder and decoder use UTF-8 so normal Unicode text works locally.
Does this support URL-safe Base64?
Yes. Switch to URL-safe Base64 for JWT and URL token workflows, with optional padding on encode.
Does Utilumo upload my input?
No. This tool is designed for local browser processing and does not send your input to a server.
Do I need an account?
No. Utilumo tools are built to work without accounts or sign-in.