⚡ Browser APIs

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.

According to our data, browser APIs are detected on 31.6% of all websites.
77.5% of these sites use only one browser API, 10.7% use two, and 11.8% use three or more simultaneously.

⭐ Most Popular in 2026

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

The most popular is Web Storage, which dominates the market with an overwhelming 83.4% share.
It is followed by XMLHttpRequest with 19.1% and Fetch with 14.4%.

Web Storage 83.4%
XMLHttpRequest 19.1%
Fetch 14.4%
Navigation Timing 10.3%
Beacon API 10.1%
PerformanceObserver 2.4%
WebSocket 2.2%
Interest-Based Advertising Opt-Out 1.5%
WebGL 1%
Geolocation API 0.5%
IndexedDB 0.1%
Notifications API 0.1%
WebRTC 0.09%
Screen Orientation API 0.09%
Origin Trials 0.08%

You can also drill down by country:

🚀 Country Highlights

Here is a list of APIs that are especially popular in certain countries.
Differences between global and country rankings are shown in parentheses.

XMLHttpRequest is #1 in the British Virgin Islands ^(-1)
Fetch is #2 in India ^(-1)
Interest-Based Advertising Opt-Out is #2 in Austria ^(-6)
Navigation Timing is #3 in Brazil ^(-1)
Beacon API is #3 in Australia ^(-2)
WebGL is #4 in China ^(-5)
IndexedDB is #4 in Russia ^(-7)

✨ Best Browser APIs

Below is a more detailed list of 17 browser APIs we track, 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.	83.4%
2	XMLHttpRequest Cambridge, Massachusetts, United States A JavaScript API to create HTTP requests.	19.1%
3	Fetch Cambridge, Massachusetts, United States A modern XMLHttpRequest alternative for fetching network resources.	14.4%
4	Navigation Timing Cambridge, Massachusetts, United States A part of the Performance API that provides metrics related to navigation from one page to another.	10.3%
5	Beacon API Cambridge, Massachusetts, United States Used to send asynchronous and non-blocking requests to a web server.	10.1%
6	PerformanceObserver Cambridge, Massachusetts, United States A part of the Performance API that is used to monitor performance measurement events.	2.4%
7	WebSocket Fremont, California, United States API enables full-duplex communication between a web browser and a web server.	2.2%
8	Interest-Based Advertising Opt-Out Allowed sites to exclude themselves from Federated Learning of Cohorts cohort calculations using the "interest-cohort=()" permission policy.	1.5%
9	WebGL A cross-platform, royalty-free open web standard for a low-level 3D graphics API based on OpenGL.	1%
10	Geolocation API Cambridge, Massachusetts, United States Allows web applications to retrieve the user's location, including latitude and longitude.	0.5%
11	IndexedDB Cambridge, Massachusetts, United States A transactional NoSQL database system for the persistent storage of structured data inside a user's browser. Free	0.1%
12	Notifications API Cambridge, Massachusetts, United States Used to configure and display desktop notifications to the user.	0.1%
13	WebRTC A set of protocols and APIs that enable real-time communication natively from web browsers and and mobile applications.	0.09%
14	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.	0.09%
15	Origin Trials Mountain View, California, United States A way for developers to test and use experimental web platform features.	0.08%
16	📢 Speech Synthesis API A part of the Web Speech API that controls the text-to-speech service.	0.05%
17	Speech Recognition API A part of the Web Speech API that controls the speech recognition service.	0.05%

Data is based on the analysis of 3,267,602 websites.
Statistics were last calculated on February 20, 2026.
For details, see our methodology and disclaimer.