Minimalisp WASM Playground

Shift+Enter inserts a newline. Press Enter or the Run button to evaluate in the embedded interpreter.

(Changing backend after execution requires a reload.)

Heap Visualization

Number Symbol Pair Lambda Env Binding String

The canvas maps the WASM linear memory, highlighting allocated objects. Copying/Generational GC compact nursery objects; mark-sweep tends to fragment over time.

GC Stats