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Most developers paste production JWTs into online decoders without thinking. Here's a 10-second DevTools check to see if your token is actually leaving your machine. A coworker was debugging an auth bug last month. Standard workflow: copy the JWT from the failing request, paste it into an online dec
Django Session Cookie vs localStorage JWT Security Comparison A team ships a Django REST Framework API, adds a React SPA on the same origin, and reaches for localStorage to store JWTs because that's what the tutorial used. Six months later, a reflected XSS on a third-party widget exfiltrates every a
You know that moment when you just want to decode a JWT, but jwt.io wants you to log in to "save your tokens"? Or when you need a quick curl command and Postman's 200MB Electron app feels like overkill? I had that moment too many times in 2025, so over the past year I built 6 small dev tools to repl
The Operational Burden of JWT Lifecycle Management Every new technology that enters our lives initially excites us with its simplicity and promises. JSON Web Token (JWT) emerged as a great solution, especially for stateless authentication needs. However, over the years, I've begun to see more clearl
A few months ago, I was debugging a production API issue. I copied a JWT from our logs, pasted it into an "online decoder," and immediately felt sick. I had just sent a live production token to a stranger's server. That moment led to ToolsMania — a suite of developer and finance tools that run entir