⚡ Browser APIs in Japan

Browser APIs (Application Programming Interfaces) are a set of functions that allow web developers to interact with the browser and system resources, providing features such as data storage, network requests, performance monitoring, graphics rendering, background tasks, and camera and microphone access.

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

According to our data, browser APIs are detected on 21.4% of websites from Japan.

⭐ Most Popular in 2026

The following chart shows the top browser APIs in Japan in 2026, based on market share.

The most popular is Web Storage, which dominates the market with an overwhelming 85.6% share.
It is followed by XMLHttpRequest with 12.9% and Fetch with 10.8%.

Web Storage 85.6%
XMLHttpRequest 12.9%
Fetch 10.8%
Navigation Timing 10%
Beacon API 8.2%
WebGL 2.1%
PerformanceObserver 1.6%
WebSocket 0.3%
Geolocation API 0.3%
Interest-Based Advertising Opt-Out 0.2%
Origin Trials 0.05%
Notifications API 0.04%
IndexedDB 0.03%
WebRTC 0.02%
Screen Orientation API 0.02%

🚀 Highlights

Here is a list of the top APIs that are more popular in Japan than worldwide.
Differences between global and country rankings are shown in parentheses.

6. WebGL ^(-3)
9. Geolocation API ^(-1)
11. Origin Trials ^(-4)

✨ Best Browser APIs

Below is a more detailed list of 17 browser APIs used on sites from Japan, ranked by their market share.

Rank	Name	Market share
1	Web Storage Cambridge, Massachusetts, United States A browser API and client-side key-value database that allows websites to store persistent data on users' devices.	85.6%
2	XMLHttpRequest Cambridge, Massachusetts, United States A JavaScript API to create HTTP requests.	12.9%
3	Fetch Cambridge, Massachusetts, United States A modern XMLHttpRequest alternative for fetching network resources.	10.8%
4	Navigation Timing Cambridge, Massachusetts, United States A part of the Performance API that provides metrics related to navigation from one page to another.	10%
5	Beacon API Cambridge, Massachusetts, United States Used to send asynchronous and non-blocking requests to a web server.	8.2%
6	WebGL A cross-platform, royalty-free open web standard for a low-level 3D graphics API based on OpenGL.	2.1%
7	PerformanceObserver Cambridge, Massachusetts, United States A part of the Performance API that is used to monitor performance measurement events.	1.6%
8	WebSocket Fremont, California, United States API enables full-duplex communication between a web browser and a web server.	0.3%
9	Geolocation API Cambridge, Massachusetts, United States Allows web applications to retrieve the user's location, including latitude and longitude.	0.3%
10	Interest-Based Advertising Opt-Out Allowed sites to exclude themselves from Federated Learning of Cohorts cohort calculations using the "interest-cohort=()" permission policy.	0.2%
11	Origin Trials Mountain View, California, United States A way for developers to test and use experimental web platform features.	0.05%
12	Notifications API Cambridge, Massachusetts, United States Used to configure and display desktop notifications to the user.	0.04%
13	IndexedDB Cambridge, Massachusetts, United States A transactional NoSQL database system for the persistent storage of structured data inside a user's browser. Free	0.03%
14	WebRTC A set of protocols and APIs that enable real-time communication natively from web browsers and and mobile applications.	0.02%
15	Screen Orientation API Cambridge, Massachusetts, United States Exposes the current type and angle of the device's screen orientation, and dispatches events when it changes.	0.02%
16	📢 Speech Synthesis API A part of the Web Speech API that controls the text-to-speech service.	0.009%
17	Speech Recognition API A part of the Web Speech API that controls the speech recognition service.	0.006%

👉 See Also

🌎 Browser APIs 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.