clerkdev.app ~ $ whoami

See what Clerk actually
puts in a session

An independent, unofficial lab for Clerk auth on Next.js 16. Sign in and watch your JWT, claims, and session state decode in real time. No marketing, just the machinery.

browse the lab

session.inspect()

resolving

lsroutes/6 demos

dashboardlive session + decoded JWT inspector auth
hooksuseUser, useAuth, useClerk, useSession, and their return shapes
control components<Show>, <Protect>, and the Clerk loading lifecycle
glossaryplain-language Clerk auth: session tokens, JWT claims, auth() vs currentUser()
examplescache components, partial hydration, PPR + nonce
react 19what's new in React 19, paired with Clerk

/* this is a personal lab, not a Clerk product. i build here to poke at Clerk + Next.js 16 and to have a real, honest place to see how the auth pieces behave. everything you can sign into is your own test account. */

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See what Clerk actually puts in a session

Explore the demos

See what Clerk actually puts in a session

Explore the demos

See what Clerk actually
puts in a session

See what Clerk actually
puts in a session