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Home / Technologies / SystemJS vs Web Components Polyfills

SystemJS vs Web Components Polyfills: who uses which

SystemJS is on more sites: 86,163 against 44,489 for Web Components Polyfills, about 1.9 times as many. Here's how they compare across the websites we've indexed, and where each one does best.

Where each one is used

DomainSystemJSWeb Components Polyfills
.com on .com64,3817,098
.pl in Poland2710,381
.de in Germany1,0059,100
.org on .org4,1912,120
.au in Australia3,402277
.ca in Canada3,412239
.uk in the UK1,552738
.site on .site2,2745

10 sites run both at once.

Questions

Which is more popular, SystemJS or Web Components Polyfills?

SystemJS is on more sites: 86,163 against 44,489 for Web Components Polyfills, about 1.9 times as many, across the sites StackGrep has indexed.

Do sites use SystemJS and Web Components Polyfills together?

10 sites load both. That's often a switch in progress, or two teams picking different tools.

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