Use Custom Media Queries in CSS
Symbolic computing and numeric evaluations for JavaScript and Node.js
Snapshotable JavaScript runtime via WebAssembly. QuickJS-NG compiled to WASM with snapshot/restore support.
[Flipt](https://www.flipt.io/) is an open source developer friendly feature flagging solution, that allows for easy management and fast feature evaluation.
GitHub Action for evaluating MCP server tool calls using LLM-based scoring
visionmedia debug extensions rolled into one
evaluate statically-analyzable expressions
Opik TypeScript and JavaScript SDK
flagd-core contain the core logic of flagd [in-process evaluation](https://flagd.dev/architecture/#in-process-evaluation) provider. This package is intended to be used by concrete implementations of flagd in-process providers.
Construct complex rules with JSON & process them.
The OpenTelemetry hooks for OpenFeature provide a [spec compliant][otel-semconv] way to automatically add feature flag evaluation information to traces, logs, and metrics. Since feature flags are dynamic and affect runtime behavior, it’s important to coll
Query JavaScript objects with JSONPath expressions. Robust / safe JSONPath engine for Node.js.

Add real-time AI video effects: virtual backgrounds, blur, touch-up, auto-framing, color correction, lower-thirds, and more. Works on all browsers for conferencing, streaming, and recording.
OpenFeature React SDK
A lightweight and lazy implementation of JSONMatch made for JavaScript
Concise and fast javascript templating compatible with nodejs and other javascript environments
Mongosh browser runtime core
Datadog CI plugin for `gate` commands
Conversion of JavaScript primitives to and from Buffer with binary order matching natural primitive order
Static AST checker for accessibility rules on JSX elements.
Universal library for evaluating AI models
Evaluate JSON Pointer expressions against ApiDOM.
Messaging library for Axinom Mosaic services