Decode JWT Payloads Locally: What the Claims Tell You (and Don't)

<p>If you've ever worked with auth, you've seen a JWT — a long string like <code>eyJhbGci...</code> split into three parts by dots. It looks cryptic, but it's surprisingly simple

<p>You're integrating an API and you get back a token that starts with <code>eyJ</code>. You paste it somewhere and suddenly you can read your user's email address, their user ID,

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