Specifications

This page explains the specs for developing a LINE MINI App.

HTML5 Support

When developing a LINE MINI App, you can use almost any HTML5 specification. For example, you can use Geolocation API to acquire information regarding the user's location, and provide users with information on nearby shops. Most Map APIs that are compatible with HTML5 can be used, including the Google Maps API.

Support Media Formats

Media formats supported by HTML5 are also supported by LINE MINI App. See these HTML5 Specifications:

HTML5 Support in the browser

This site is helpful in finding out how HTML5 is supported on an external browser:

Supported Platforms and Versions

LINE MINI Apps are developed using LIFF. Therefore, the supported OS versions and LINE versions of LINE MINI App are based on the Recommended operating environment of LIFF.

Note

Supported versions are subject to change without notice.

Opening LINE MINI App in an external browser

As of October 2025, LINE MINI Apps can be used in an external browser

The screen that is displayed when users open LINE MINI Apps in an external browser has been changed. For more information, see the news from September 26, 2025, On October 1, 2025, all LINE MINI App users will be able to use the service in a web browser.

When a user who doesn't use LINE, or a LINE user in a situation where deep links don't work opens a LINE MINI App in an external browser, a page like the one shown below will be displayed, and the user will be guided to open the LINE MINI App using LINE's smartphone app (LIFF browser). Tapping Open in web browser on the page displays the LIFF endpoint URL page in the web browser.

Supported LIFF Versions

LINE MINI Apps are developed using LIFF. The minimum version of the LIFF SDK available for use on LINE MINI App is v2.1.

LINE MINI App allows the use of all LIFF APIs provided by LIFF v2.1.x.