LINE Front-end Framework (LIFF) v2 is a platform for web apps provided by LINE.
Use the latest version of LIFF
LIFF v1 will be deprecated.
LIFF apps now run in external browsers
With LIFF v1, LIFF apps ran only in LINE's in-app browser. With LIFF v2, LIFF apps can also run in external browsers. This means you can develop LIFF apps using the same development environment as general web applications.
Get user profile and email
Because compatibility with LINE Login v2.1 has improved, you can retrieve a user's ID and email address from the LINE platform. Your LIFF app can use this data to provide features related to user information and sending emails.
Furthermore, you can use LINE Login (web login flow) even when your LIFF app is running in an external browser. This means you can use the same information even when the LIFF app is running in an external browser.
Read QR codes
You can start LINE's QR code reader and get the strings read by the user.
Get LIFF app environment information
You can get the following details about the environment in which your LIFF app is running:
- Operating system in which the LIFF app is running (iOS, Android, external browser)
- Whether the LIFF app is running in the in-app browser (true, false)
- Language settings
For more information, see LINE Front-end Framework.