MobX Developer Tools
June 17, 2026 · View on GitHub
DevTools for debugging MobX applications. Track changes to observables, inspect the dependency tree, and explore mobx-state-tree stores — all from your browser.
Install
Browser Extension
Standalone App
For browsers without extension support (Safari, etc.):
npm install --global mobx-devtools
mobx-devtools
Compatibility
- MobX 2.2+ through 6.x
- mobx-state-tree (any version)
mobx-state-tree Support
To inspect MST stores, install the companion package and make your stores inspectable:
npm install mobx-devtools-mst
import makeInspectable from 'mobx-devtools-mst';
const myStore = MyStore.create(/* ... */);
makeInspectable(myStore);
Troubleshooting
DevTools not connecting? Make sure you are using mobx 2.2.0 or higher and your app does not live inside an iframe. If that doesn't help, please open an issue with details about your environment.
Contributing
See HACKING.md for development setup instructions.