stevenlei/spacingjs

Health v2 · maintenance only

Adoption not part of the score

1124 stars · 71 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

SpacingJS is a lightweight JavaScript utility for measuring the spacing between elements on a webpage during development. It is available via CDN or npm, and also ships as a Chrome extension with keyboard shortcuts and visual status indicators.

Use cases

• measure spacing between webpage elements
• check pixel-perfect distances during frontend development
• verify margins and gaps between UI components
• take screenshots with visible measurements
• inspect element dimensions and font sizes on a page

When to choose

• you need quick visual spacing measurements while building or reviewing web UIs
• you want a zero-config tool that works via a CDN script tag
• you prefer a Chrome extension with hotkeys for measuring on any site

When to avoid

• you need automated layout testing or CI-based visual regression checks
• you need full design inspection tools like element styles or box model editing
• you work outside the browser, e.g. native or mobile app layout measurement

Facets

library · maturity active

developer-tools ui-components web-development frontend developer-tools web-design browser browser-extension spacing-measurement design-tool pixel-perfect chrome-extension typescript web-server

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