A JavaScript utility for measuring the spacing between elements on webpage. This is supposed to be used during development only. Try this out.

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Include Spacing.js with <script> tag in your HTML page:

<!-- Use `UNPKG' CDN. --->
<script src="//unpkg.com/spacingjs" defer></script>

<!-- Or, use `jsDeliver` CDN. -->
<script src="//cdn.jsdelivr.net/npm/spacingjs" defer></script>

import Spacing from 'spacingjs';

Spacing.start();

1. Move your mouse cursor to an element, and press Alt on Windows or ⌥ Option on a Mac.

2. Move your mouse cursor to another element, the measurement results will be there.

Hold down with Shift key will delay the dismiss of measurement results, so that we can take a screenshot easier.

You can install the Chrome Extension version on the Chrome web store, or build on your own with npm run ext.

Feel free to fork this repository and submit pull requests. Bugs report in GitHub Issues, features/ideas/questions discuss in GitHub Discussions.

Spacing.js is MIT Licensed.