Story

Show HN: Wirebrowser – A JavaScript Debugger with Breakpoint-Driven Heap Search

fcavallarin Wednesday, December 10, 2025

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.

Summary
WireBrowser is an open-source web browser built on top of the Quasar framework, providing a modern, lightweight, and customizable browsing experience. It aims to offer an alternative to traditional web browsers, with a focus on performance, privacy, and user control.
2 0
Summary
github.com
Visit article Read on Hacker News