KaTeX installed [using Node.js package managers](node.md) comes with a
built-in command-line interface (CLI) which can be used to render TeX to HTML.
By default, CLI will take the input from standard input.

```bash
npx katex
```

> Above uses the `npx` command to run the locally installed executable
after `npm install katex`.  You can also execute with the relative path:
`./node_modules/.bin/katex`

> To use the CLI from local Git clone, you need to build the project first.
See [Building from Source](node.md#building-from-source) for more details.

## Options