SVG Icon Sprite Sheets
An SVG sprite sheet bundles many icons into one file, reducing HTTP requests while keeping each icon individually referenceable.
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Building a Sprite Sheet with Symbol Elements
An SVG sprite sheet defines each icon as a <symbol> element with a unique id inside one combined SVG file, and individual icons are then displayed elsewhere in the page using <use href="#icon-id">, letting a single network request deliver an entire icon library while still allowing each icon to be placed and sized independently wherever it's needed.
- Each icon becomes a <symbol> with a unique id inside one combined file
- <use href="#icon-id"> references and displays an individual icon anywhere
- One network request delivers the entire icon library instead of many small ones
Build Tooling for Generating Sprite Sheets
Manually maintaining a sprite sheet by hand is tedious for anything beyond a handful of icons, so most projects use a build-time tool like svg-sprite or a bundler plugin (svg-sprite-loader for Webpack, vite-plugin-svg-icons for Vite) to automatically combine a folder of individual SVG files into one generated sprite sheet during the build process.
- Build-time tools automatically combine individual icon files into one sprite
- Webpack and Vite both have dedicated sprite-generation plugin options
- Avoids manually maintaining a large combined SVG file by hand
Frequently Asked Questions
Can I style individual icons differently within a sprite sheet reference?
Yes, each <use> reference can have its own CSS classes, fill color (via currentColor), and size applied independently, even though all icons originate from the same shared sprite sheet file.
Are sprite sheets still worth using with HTTP/2 multiplexing?
They remain useful for reducing overall request count and enabling efficient caching of an entire icon library as one file, though the performance gap versus individual requests is smaller under HTTP/2 than it was under HTTP/1.1.
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