Show HN: Wirebrowser – A JavaScript debugger with breakpoint-driven heap search
4 by fcavallarin | 0 comments on Hacker News.
Hi HN! I'm building a JavaScript debugger called Wirebrowser. It combines network inspection, request rewriting, heap snapshots, and live object search. The main experimental feature is BDHS (Breakpoint-Driven Heap Search): it hooks into the JavaScript debugger and automatically captures a heap snapshot at every pause and performs a targeted search for the value or structure of interest. This reveals the moment a value appears in memory and the user-land function responsible for creating it. Another interesting feature is the Live Object Search: it inspects runtime objects (not just snapshots), supports regex and object similarity, and lets you patch objects directly at runtime. Whitepaper: https://fcavallarin.github.io/wirebrowser/BDHS-Origin-Trace Feedback very welcome, especially on whether BDHS would help your debugging workflow.
Wednesday, December 10, 2025
New top story on Hacker News: Show HN: Wirebrowser – A JavaScript debugger with breakpoint-driven heap search
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