Convert between text, binary, and transport-safe formats.
Encoding turns one representation into another so data survives a hostile channel — a URL bar, a JSON payload, a header. Base64 packs binary into printable ASCII. URL encoding escapes characters that would break query strings. JWT decoding unpacks signed claim payloads (without verifying — that's a separate step). Every tool here runs entirely in your browser; tokens, credentials, and payloads never leave your device. Use them to debug API responses, sanity-check OAuth flows, or paste a base64 blob and see what's inside without touching a REPL.
No. It's a reversible encoding that maps binary to printable ASCII. Anyone can decode it. Use AES if you need confidentiality.
JWT decoding shows the payload without checking the signature. To verify, you need the issuer's public key (RS256) or shared secret (HS256).