base64 inspector
Encode or decode text in four common codecs — base64, base64url, hex, and percent-encoded URLs. Everything runs in your browser; your input never leaves the page.
Codec
RFC 4648 §5 — A–Z a–z 0–9 - _ (URL-safe). Padding optional.
Plain text
Type or paste the text you want to encode.
base64url output
Copy the encoded string below.
(empty)
0 output characters