"Hashing" and "encryption" both take input and produce something that looks scrambled, which is probably the whole reason people use the terms interchangeably. In practice they solve close to opposite problems, and picking the wrong one for a task is a genuine security mistake, not just a vocabulary slip.
Hashing: one-way, for verification
A hash function takes input and produces a fixed-length output that can't practically be reversed back into the original — its entire purpose is verification, not secrecy. Storing a password as a hash means even the system storing it can't recover the original password, which is exactly the point. A Hash Generator supporting MD5, SHA family, and bcrypt covers the common cases, though bcrypt (designed to be slow) is the right choice specifically for password storage, not the faster general-purpose hashes.
Encryption: two-way, for confidentiality
Encryption is designed to be reversed — by whoever holds the correct key. It's the right tool when you need to send or store something that a specific, authorized party needs to read back later, which is a fundamentally different requirement than "prove this wasn't tampered with." An Encryption / Decryption (AES) tool demonstrates this two-way relationship directly: encrypt with a key, decrypt with the same key, get the original back.
Encoding is neither of these — and gets lumped in anyway
Base64 and URL encoding aren't security measures at all; they just represent data in a different, transportable format, fully reversible by anyone with no key required. Treating a Base64 / URL / HTML Encoder output as "encrypted" is a common and risky misunderstanding worth clearing up explicitly.
JWTs mix signing with encoding, which adds to the confusion
A JWT's payload is typically just Base64-encoded, not encrypted — readable by anyone who has the token, even without the signing key. The signature only proves the token wasn't altered, not that its contents are secret. A JWT Decoder makes this visible immediately: decoding a token's payload requires no secret at all.
Picking the right tool for the actual requirement
The practical rule of thumb: if you need to prove something wasn't changed or verify a password without storing it in readable form, that's hashing. If you need to get the original data back later, that's encryption. Getting this backwards — encrypting passwords instead of hashing them, for instance — is a well-documented category of real-world security incident.
TeckForge's hashing, encryption, and encoding tools run entirely client-side, which is worth using deliberately: none of the values you're experimenting with, including test passwords, ever leave your browser.
