⚡ Module Bundlers in Japan

Module bundlers are development tools that combine JavaScript modules and their dependencies into optimized files for efficient browser loading.

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

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

Statistics based on 162K+ analyzed websites. About this data

⭐ 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% share.
It is followed by Rollup with 1.7% and Parcel with 0.3%.

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	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	1.7%
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%

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 162,380 websites from Japan.
We currently track the presence of 3 module bundlers across the web.
Of these, 3 were detected on websites from Japan.
Statistics were last calculated on May 6, 2026.
For more details, see our methodology and disclaimer.