Base64 Encoder
Encode and decode Base64 text and files.
🔒 Runs entirely in your browser. Nothing is uploaded.
Questions.
Does it handle Unicode?
Yes. Text is encoded as UTF-8, so emoji and non-Latin scripts round-trip correctly.
What is URL-safe Base64?
It swaps + and / for - and _ and drops padding, so the result is safe in URLs and JWTs.