About the Encoding Tools
Encoding tools convert data into formats that can safely travel through URLs, headers, emails and databases. Here you can encode and decode Base64 and URLs, generate hashes such as SHA-256 and MD5, and decode JWT tokens. Remember that encoding is not encryption: it makes data safe to transport, not secret.
Encoding, Hashing and Encryption
Encoding (Base64, URL encoding) is reversible by anyone and is used for compatibility. Hashing (SHA-256) is one-way and is used for fingerprints and integrity checks. Encryption (AES, RSA) is reversible only with a key and is what you need to keep data private. Choosing the right one avoids common security mistakes.