⚡ Module Bundlers in Japan

Module bundlers are development tools that combine JavaScript modules and their dependencies into a single browser-compatible file.

Japan is an East Asian country with a population of around 125 million people.

According to our research, module bundlers are used on 2.8% of websites from Japan.

⭐ Most Popular in 2026

The following chart shows the top module bundlers in Japan in 2026, based on market share.

The most popular is Webpack, which dominates the market with an overwhelming 98.2% share.
It is followed by Rollup with 1.6% and Parcel with 0.3%.

Webpack 98.2%
Rollup 1.6%
Parcel 0.3%

✨ Best Module Bundlers

Below is a more detailed list of 3 module bundlers used on sites from Japan, ranked by their market share.

Rank	Name	Market share
1	Webpack San Francisco, California, United States A static module bundler for modern JavaScript applications. FreeOpen source	98.2%
2	Rollup A module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. FreeOpen source	1.6%
3	Parcel A build tool for the web that compiles and transpiles JavaScript, compiles Sass and Less, has CSS module support, and automatically optimizes your entire app for production. FreeOpen source	0.3%

👉 See Also

🌎 Module Bundlers in other countries

Data is based on the analysis of 157,205 websites from Japan.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.