paulirish/memory-stats.js

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2091 stars · 106 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A minimal JavaScript library that displays a live JS heap size monitor overlay in the browser, similar to stats.js but for memory. It reads Chrome's non-standard performance.memory API and renders usage in a small DOM widget.

Use cases

• monitor JS heap size while debugging a web app
• detect memory leaks in a browser page
• overlay a memory usage graph like stats.js FPS meter
• watch heap usage during Three.js or game development
• inject a memory monitor into any page via bookmarklet

When to choose

• you need a lightweight in-page heap size indicator during development
• you're profiling memory in Chrome and want a quick visual
• you want a stats.js-style meter for memory instead of FPS

When to avoid

• you need memory metrics in Firefox or Safari (performance.memory is Chrome-only)
• you need production-grade memory profiling or heap snapshots (use Chrome DevTools)
• you need precise readings without launching Chrome with --enable-precise-memory-info

Facets

library · maturity maintenance

monitoring developer-tools developer-tools web-development performance browser memory-monitoring heap-size performance-memory debugging stats-overlay chrome-only javascript

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