MemLab

memlab is an end-to-end testing and analysis framework for identifying JavaScript memory leaks and optimization opportunities.

Its integration into the development workflow, coupled with its efficiency in identifying issues, makes it a valuable tool for both testers and developers striving to create high-performance and reliable web applications.

Key Features:

• Browser memory leak detection - Write test scenarios with the Puppeteer API, and memlab will automatically compare JavaScript heap snapshots, filter out memory leaks, and aggregate the results
• Object-oriented heap traversing API - Supports the creation of self-defined memory leak detector, and enables programmatic analysis JS heap snapshots taken from Chromium-based browsers, Node.js, Electron.js, and Hermes
• Memory CLI toolbox - Built-in toolbox and APIs for finding memory optimization opportunities (not necessarily just memory leaks)
• Memory assertions in Node.js - Enables unit tests or running node.js programs to take a heap snapshot of their own state, perform self memory checking, or write advanced memory assertions