Easy Browser Support with Polyfill.io
By A Mystery Man Writer
Last updated 16 Jul 2024
![Easy Browser Support with Polyfill.io](https://atendesigngroup.com/sites/default/files/pollyfill.io_.png)
Finding and installing polyfills can often be a tedious task. Not too long ago, I was searching for a good list of polyfills to reference while working on browser compatibility issues. I ended up coming across Polyfill.io, a service that has since proven very useful. Polyfill.io makes polyfilling support for newer JS features in older browsers super easy. It works via User-Agent sniffing to determine the browser being used, then loads the required polyfills. Here’s how you use it
![Easy Browser Support with Polyfill.io](https://shots.codepen.io/username/pen/xxKOPqb-800.jpg?version=1566064113)
tab-size polyfill
![Easy Browser Support with Polyfill.io](https://files.readme.io/b727df5-clover-hosted.png)
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![Easy Browser Support with Polyfill.io](https://atendesigngroup.com/sites/default/files/2021-10/john-ferris-1.jpg)
Easy Browser Support with Polyfill.io
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![Easy Browser Support with Polyfill.io](https://2753545600-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LYTySvQ8SJuUV8XIriG%2F-LhldJfWCz90cGlrKKvn%2F-Lhleh2n_HDPsYclb1y2%2FScreen%20Shot%202019-06-19%20at%204.35.32%20PM.png?alt=media&token=54938482-e11b-44b0-8f33-b2c6b78c9234)
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![Easy Browser Support with Polyfill.io](https://www.drupixels.com/sites/drupixels/files/styles/blog_detail/public/2022-04/Quicklink%20-%20Extended%20Browser%20Support.png?itok=j7Gs0Fow)
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![Easy Browser Support with Polyfill.io](https://res.cloudinary.com/practicaldev/image/fetch/s--dUfo3Q1R--/c_imagga_scale,f_auto,fl_progressive,h_420,q_auto,w_1000/https://thepracticaldev.s3.amazonaws.com/i/mzybt2hyt7zur0z59y1q.jpg)
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![Easy Browser Support with Polyfill.io](https://zellwk.com/_astro/abort-caniuse.6bec97aa_1Yiyqm.png)
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![Easy Browser Support with Polyfill.io](https://d585tldpucybw.cloudfront.net/sfimages/default-source/default-album/3-performance-tips-to-speed-up-your-react-applications-01.png?sfvrsn=200ca51f_1)
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![Easy Browser Support with Polyfill.io](https://atendesigngroup.com/sites/default/files/styles/w1080/public/group-code-review.jpg?itok=zM3-gXoc)
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