Is this specifier a node.js core module?
Babel compiler core.
Standard library
core-js compat
tldts core primitives (internal module)
Core functions & classes shared by multiple AWS SDK clients.
The `util.is*` functions introduced in Node v0.12.
Positioning library for floating elements: tooltips, popovers, dropdowns, and more
A high-level API to automate web browsers
regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.
Standard library
Accessibility engine for automated Web UI testing
[](https://www.npmjs.com/package/@smithy/core) [](https://www.npmjs.com/package/@smithy/core)
The core of the humanfs library.
Super-fast alternative for babel
OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.
@vue/compiler-core
Base implementation for all Sentry JavaScript SDKs
Error parser to parse an error instance into a collection of frames
Core HTTP Compatibility Library to bridge the gap between Core V1 & V2 packages.
Runtime-agnostic core of ESLint
Core libraries that every NodeJS toolchain project should use
Modern and scalable routing for React applications
Super-fast alternative for babel
Actors, supervision, dispatch, mailboxes, scheduler, FSM, event stream, and coordinated shutdown — the core of the rakka actor runtime.
Membership, gossip, reachability, vector clocks, and split-brain resolvers for rakka clusters.
Adaptive load balancing using cluster-wide metrics for rakka.
Sharded entities for rakka — allocation strategies, rebalance, three-phase handoff, remember-entities.
Distributed pub/sub, cluster singleton, and cluster client patterns for rakka.
Layered HOCON-style configuration for rakka — `include`, `${path}` substitution, `${?ENV}`, dotted keys, arrays.
Lease-based coordination primitives for rakka.
Live web UI over a running rakka system — REST + WebSocket + embedded React SPA, Prometheus / OTLP exporters.
Dependency-injection container for rakka.
Pluggable service-discovery interface for rakka.
Convergent replicated data types (CRDTs) over a rakka cluster — counters, sets, maps, registers, replicator.
Builder API for wiring a rakka system together — config, DI, setup hooks.