STACKSCOPE

See your code run. Every call, variable and return — recorded, then scrubbed like a waveform.
Traces plain functions, loops, arrays & objects, this, and console.log. Async & classes not yet.
SOURCE edited — press RUN to re-record ⌘/Ctrl+Enter to run
CALL STACK
Press RUN to record an execution. Frames will stack here, newest on top, each with its live variables.
CALL MAP
The call map draws itself as your program runs — recursion becomes a tree you can watch grow.
CONSOLE
console.log output appears here, exactly when it happens.
stack depthnow
— event 0 / 0