# Reference Tools

Canonical: https://herebetools.com/topics/reference

Browse free reference tools and references on Here Be Tools. Choose a tool to see its capabilities and use it in your browser.

- [HTML Reference](https://herebetools.com/ref-html): Quick reference for HTML elements, attributes and semantic structure
- [CSS Reference](https://herebetools.com/ref-css): Quick reference for CSS selectors, flexbox, grid, and properties
- [JavaScript Reference](https://herebetools.com/ref-javascript): Quick reference for JavaScript syntax, arrays, async and ES2022+
- [PHP Reference](https://herebetools.com/ref-php): Quick reference for PHP syntax, functions, OOP and superglobals
- [Python Reference](https://herebetools.com/ref-python): Quick reference for Python syntax, data types, comprehensions and stdlib
- [PowerShell Reference](https://herebetools.com/ref-powershell): Quick reference for PowerShell cmdlets, pipeline and scripting patterns
- [Bootstrap Reference](https://herebetools.com/ref-bootstrap): Quick reference for Bootstrap 5 grid, utilities, components and classes

[Privacy policy](https://herebetools.com/privacy-policy) · [About](https://herebetools.com/facts) · [Topics](https://herebetools.com/topics)