Tracium

Tracium is a JavaScript library designed for parsing Chromium performance traces. It was extracted from Google Lighthouse, making it a robust tool for analyzing web performance data generated by Chrome browsers (version 66 and newer). Currently at version 0.2.1, its release cadence is infrequent, suggesting a stable, feature-complete state rather than active, rapid development. A key differentiator is its ability to correctly parse modern Chrome traces, positioning it as an up-to-date alternative to older parsers like Big Rig. It provides structured main thread task data, including task kind, timing, and an event hierarchy, crucial for detailed performance analysis.