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PDF.js vs Polyfill.io: who uses which
Polyfill.io is on more sites: 80,632 against 13,048 for PDF.js, about 6.2 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
| Domain | PDF.js | Polyfill.io |
|---|---|---|
| .com on .com | 4,907 | 43,820 |
| .io on .io | 116 | 6,418 |
| .org on .org | 875 | 3,239 |
| .pl in Poland | 148 | 1,851 |
| .de in Germany | 828 | 931 |
| .net on .net | 266 | 1,490 |
| .uk in the UK | 211 | 1,494 |
| .fr in France | 384 | 1,295 |
19 sites run both at once.
Questions
Which is more popular, PDF.js or Polyfill.io?
Polyfill.io is on more sites: 80,632 against 13,048 for PDF.js, about 6.2 times as many, across the sites StackGrep has indexed.
Do sites use PDF.js and Polyfill.io together?
19 sites load both. That's often a switch in progress, or two teams picking different tools.
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