⚡ Browser APIs in Belgium

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.

Belgium is a Western European country with a population of over 12 million people.

According to our data, browser APIs are detected on 28.2% of websites from Belgium.

⭐ Most Popular in 2026

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

The most popular is Web Storage, which dominates the market with an overwhelming 78.8% share.
It is followed by Fetch with 12.9% and XMLHttpRequest with 12.2%.

Web Storage 78.8%
Fetch 12.9%
XMLHttpRequest 12.2%
Navigation Timing 7.2%
Beacon API 7%
WebSocket 4.5%
Interest-Based Advertising Opt-Out 4.3%
PerformanceObserver 2.5%
WebGL 1.4%
Geolocation API 0.4%
Origin Trials 0.1%
Notifications API 0.05%
Screen Orientation API 0.04%
📢 Speech Synthesis API 0.01%

🚀 Highlights

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

2. Fetch ^(-1)
6. WebSocket ^(-1)
7. Interest-Based Advertising Opt-Out ^(-1)
11. Origin Trials ^(-4)
13. Screen Orientation API ^(-1)
14. 📢 Speech Synthesis API ^(-2)
15. Speech Recognition API ^(-2)

✨ Best Browser APIs

Below is a more detailed list of 15 browser APIs used on sites from Belgium, 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.	78.8%
2	Fetch Cambridge, Massachusetts, United States A modern XMLHttpRequest alternative for fetching network resources.	12.9%
3	XMLHttpRequest Cambridge, Massachusetts, United States A JavaScript API to create HTTP requests.	12.2%
4	Navigation Timing Cambridge, Massachusetts, United States A part of the Performance API that provides metrics related to navigation from one page to another.	7.2%
5	Beacon API Cambridge, Massachusetts, United States Used to send asynchronous and non-blocking requests to a web server.	7%
6	WebSocket Fremont, California, United States API enables full-duplex communication between a web browser and a web server.	4.5%
7	Interest-Based Advertising Opt-Out Allowed sites to exclude themselves from Federated Learning of Cohorts cohort calculations using the "interest-cohort=()" permission policy.	4.3%
8	PerformanceObserver Cambridge, Massachusetts, United States A part of the Performance API that is used to monitor performance measurement events.	2.5%
9	WebGL A cross-platform, royalty-free open web standard for a low-level 3D graphics API based on OpenGL.	1.4%
10	Geolocation API Cambridge, Massachusetts, United States Allows web applications to retrieve the user's location, including latitude and longitude.	0.4%
11	Origin Trials Mountain View, California, United States A way for developers to test and use experimental web platform features.	0.1%
12	Notifications API Cambridge, Massachusetts, United States Used to configure and display desktop notifications to the user.	0.05%
13	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.	0.04%
14	📢 Speech Synthesis API A part of the Web Speech API that controls the text-to-speech service.	0.01%
15	Speech Recognition API A part of the Web Speech API that controls the speech recognition service.	0.01%

👉 See Also

🌎 Browser APIs in other countries

Data is based on the analysis of 26,849 websites from Belgium.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.