Encode, Decode & Hash

Base64, URL and HTML entity conversion, a JWT inspector, SHA hashes and a Unicode inspector for spotting invisible characters. Everything runs locally — nothing leaves your browser.

Input

Hello, Claude! 👋 Ünïcödé works too.

URL-safe alphabet (- and _, no padding)Decoding accepts both variants automatically.

Base64

36 chars in → 0 chars out

File → Base64 data URI

Choose file

Pick an image or any file (up to 10 MB) to get a data URI — handy for embedding images in HTML/CSS or sending to vision APIs.