# JavaScript ROOT
JavaScript ROOT provides interactive ROOT-like graphics in the web browsers and in `node.js`.
Data can be read and displayed from ROOT binary and JSON files.
`JSROOT` implements user interface for THttpServer class.
## Examples
[](https://root.cern/js/latest/?nobrowser&file=../files/hsimple.root&item=hpxpy;1&opt=colz) [](https://root.cern/js/latest/?nobrowser&file=../files/hsimple.root&item=ntuple;1&opt=px:py::pz%3E4) [](https://root.cern/js/latest/?nobrowser&file=../files/histpainter6.root&item=draw_hstack;1) [](https://root.cern/js/latest/?nobrowser&json=../files/geom/simple_alice.json.gz&file=../files/geom/tracks_hits.root&item=simple_alice.json.gz+tracks_hits.root/tracks;1+tracks_hits.root/hits;1)
### In web browser
```javascript
...
...
```
### In node.js
```javascript
import { openFile, makeSVG } from 'jsroot';
import { writeFileSync } from 'fs';
let file = await openFile('https://root.cern/js/files/hsimple.root');
let obj = await file.readObject('hpxpy;1');
let svg = await makeSVG({ object: obj, option: 'lego2,pal50', width: 1200, height: 800 });
writeFileSync('lego2.svg', svg);
```
### More examples
[Supported classes/options](https://root.cern/js/latest/examples.htm)
[API examples](https://root.cern/js/latest/api.htm)
## Install
```
npm install jsroot
```
## Documentation
[Tutorial](docs/JSROOT.md)
[THttpServer](docs/HttpServer.md)
[Changelog](changes.md)
[Reference API](https://root.cern/js/latest/jsdoc/global.html)
## Links
[https://root.cern/js/](https://root.cern/js/)
[https://jsroot.gsi.de](https://jsroot.gsi.de/)