APIActive

Node.js V8 API

Built-in Node.js module exposing V8 engine APIs for heap snapshots, profiling, serialization, and GC monitoring.

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Field note

What it does

Provides JavaScript interfaces to V8 heap statistics, CPU/heap profiling, serialization, promise hooks, startup snapshots, and GC profiling.

Capabilities

Available capabilities

Heap snapshots CPU profiling Heap profiling GC profiling Serialization/Deserialization Promise hooks

Tags

Tags

V8 Memory Profiling

Ways to use it

Ways to use it

sdk

JavaScript / node:v8

Product features

Product features

Node.js v26.7.0 documentation

V8 #

v8.cachedDataVersionTag() #

v8.getCppHeapStatistics([detailLevel]) #

v8.getHeapCodeStatistics() #

v8.getHeapSnapshot([options]) #

v8.getHeapSpaceStatistics() #

v8.getHeapStatistics() #

v8.queryObjects(ctor[, options]) #

v8.setFlagsFromString(flags) #

v8.stopCoverage() #

v8.takeCoverage() #