🆚 Parsley vs. Polyfill
- 📈 Polyfill is much more popular than Parsley.
- 🌍 Polyfill is more popular in all countries.
- ⭐ Parsley is particularly popular in Germany.
Statistics based on 3.3M+ analyzed websites. About this data
PolyfillType
JavaScript library
JavaScript library
About
JavaScript form validation, without actually writing a single line of 
JavaScript.
Polyfill.io is an open-source JavaScript library that provides modern web API features to older browsers that do not natively support them.
After a supply chain attack in 2024 involving its cdn.polyfill.io domain, the service was discontinued and is now safely mirrored and maintained by 
Cloudflare under independent management.
Pricing
Free ✔️Open source
Free ✔️Open source
Categories
JavaScript Libraries › Rank #104
JavaScript Libraries › Rank #4
Popularity
Determined by the number of sites using each technology.
The Polyfill JavaScript library is 35 times more popular than Parsley.
Total websites
Market share
JavaScript Libraries
Popularity by country
Determined by the number of sites detected from each country.
Polyfill is more popular than Parsley in all countries.
United States
United Kingdom
Japan
Russia
Germany
Spain
Italy
Australia
France
Netherlands
Awards
- ⬆️ 49th most popular in Germany in the JavaScript Libraries category.
- ⬆️ 51st most popular in Austria in the JavaScript Libraries category.
- ⬆️ 61st most popular in Switzerland in the JavaScript Libraries category.
- ⬆️ 75th most popular in Serbia in the JavaScript Libraries category.
- ⬆️ 84th most popular in the Netherlands in the JavaScript Libraries category.
- 🥈 Second most popular in Russia in the JavaScript Libraries category.
- 🥈 Second most popular in Belarus in the JavaScript Libraries category.
- 🥈 Second most popular in Jamaica in the JavaScript Libraries category.
- 🥈 Second most popular in Curacao in the JavaScript Libraries category.
- 🥈 Second most popular in the Turks and Caicos Islands in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
Polyfill is more popular than Parsley in all market segments.
Business
Marketing/Merchandising
Online Shopping
Education/Reference
Blogs/Wiki
Internet Services
Travel
Entertainment
Health
Non-Profit/Advocacy/NGO
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
jQuery
Regenerator
Core-js
Fastly Polyfill
Babel🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,375,483 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.