26-64x faster than Jest. A test runner built for React Native and Expo. One esbuild pass, one process, zero Babel.
hermes-test binary for macOS arm64 (Apple Silicon)
hermes-test binary for Linux x64
Flow types for the Flow-ESTree spec produced by the hermes parser
Babel plugin which switches Babel to use the Hermes parser.
A JavaScript parser built from the Hermes engine
The Hermes runtime, used by React Native for Android, is able to output [Chrome Trace Events](https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview) in JSON Object Format.
This package is part of the [React Native CLI](../../README.md). It contains commands for managing the Hermes engine.
🚇 Hermes bytecode compiler for Metro.
@bugsnag/react-native plugin to support Hermes
Hermes parser plugin for Prettier.
<h1 align="center"> Hermes Profile Transformer </h1>
Self-hosted AI chat dashboard for Hermes Agent — multi-model web UI with multi-platform integration
Paperclip adapter for Hermes Agent — run Hermes as a managed employee in a Paperclip company
A custom parser for ESLint using the Hermes parser
A lightweight and trustworthy URL polyfill for React Native
Spool-dispatch orchestration engine with unified state machine, skills, and automated git enforcement
Pyth Hermes Client
A JavaScript engine optimized for running React Native on Android
Tools built on top of Hermes-ESTree to enable codebase transformation
Local-first code intelligence for AI agents (MCP). Self-contained — bundles its own runtime.
Fix broken Hermes engine TypedArray implementation for React Native
Pyth solana receiver SDK
client-side messaging channel for sending data from one browser tab to another