What is JWT (JSON Web Token)?
A secure digital pass that proves who you are without needing to check the database every time
Why It Matters
JWTs make your app faster and more scalable by reducing database lookups for authentication
Real-World Example
After logging in, your browser stores a JWT that proves your identity for the next hour
“Understanding terms like JWT (JSON Web Token) matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Authentication
The process of verifying who someone is, usually through a username and password
Token
A piece of data that represents your identity or permissions
Session
A way to remember information about a user while they're using your app
OAuth
A standard that lets you log into apps using your existing accounts from Google, Facebook, or other providers
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