WebAssembly sandbox

Runs an allowed WebAssembly module in an own sandbox with a step budget, limited memory and a list of allowed imports. It shows the call result, the steps used, the exported functions and, for an endless loop, a division by zero or an out-of-bounds access, the exact reason for stopping.

Fill in the fields, run the tool and review the result. Your input is not added to a public page. Use the learning mode for calculation details.