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The LINE Login sample app for Android lets you quickly see how LINE Login works on an Android app. To build and run the sample app, you need:

We've migrated the following contents from the LINE Developers Community site to the LINE Developers site. - Developers Community - LINE API Experts - Our...

Glossary for the LINE Platform products.

The usage guidelines for the LINE Social Plugin (hereinafter the Guidelines) are a set of basic rules governing the usage of the LINE Social Plugin provided by...

The access tokens managed through the LINE Login API verifies that an app has been granted permission to access user data (such as user IDs, display names,...

LINE Login lets people easily create an account for your web app or native app using their LINE accounts. You can integrate LINE Login into your iOS, Android,...

Find out about the most important command-line tools that are available, organized by the packages in which they're delivered.

Enable users to make transactions on your LINE MINI App with LINE Pay or other payment systems. Additionally, only in Japan, you can use the LINE MINI App...

PKCE (Proof Key for Code Exchange) is an OAuth2.0 extension specification defined in RFC7636, intended to combat authorization code interception attacks. The...

This document contains optional functions for corporate users.

You as a service provider can let your service users securely link their LINE account to the account for your service. To link accounts, the users must have...

Explains how to create a login process that is resistant to attacks

The LINE Login starter app for Unity lets you quickly see how LINE Login works in a Unity game. Before building and running the starter app, follow the Setting...

In the LINE MINI App Quick-fill, when the end user taps the Auto-fill button, a modal will appear to confirm the user's profile. After confirming the profile...

When you add a LIFF app to a LINE Login channel on the LINE Developers Console, the LIFF app can run either in LINE or in an external browser.

Feb 12, 2026 - Spotify credits Claude Code and its internal AI system Honk with speeding up development.

Getting users profile data and ID tokens after login with the LINE SDK for iOS Swift.

Using the Messaging API, you can use LINE emoji in text messages. For instructions to send text messages, see Send messages.

Add a LINE Login button to let your users log in to your application using LINE Login. The LINE Login button is made up of the following components: the LINE...

The LINE URL scheme enables deep linking to redirect users to specific content or to perform specific actions in LINE. The URL schemes are supported on the iOS...

You can display an option to add the LINE Official Account as a friend when a user logs in to your app. This is called the add friend option. Specify the LINE...

You can use custom icons to create your own design of the Share button. For more information on adding this button to your website, refer to the section on...

From the notifications center of the LINE Developers Console, you can receive various updates in real time. This page explains the types of notifications you...

A simple and convenient blockchain platform. From beginners to professionals, we provide the best solution for developing, publishing, and operating blockchain...

Get 26090+ free line icons in SVG, PNG, React, Figma, and more. Available in multiple variations, with free CDN & icon editor for seamless customization!

To stop using your LINE Official Account linked to a Messaging API channel, follow the steps below to delete your LINE Official Account. When you delete your...

This guide describes how to use the Messaging API to build a LINE bot. Before you start to set up and build a bot, make sure you have:

Release notes for the LINE SDK for Unity. See the latest changes and releases.

The LIFF browser doesn't support some of the web technologies supported by external browsers. The web technologies that aren't supported by the LIFF browser...

This page describes the price for sending messages using the Messaging API.

LY Corporation provides the following features to third-party developers through the LINE Platform: By creating a channel for using the features on a managing...

Notice for corporate customers. See also the News.

We strongly recommend that Service Designers, Operators, and Marketers read this guideline and prepare acccordingly.

LINE MINI App page consists of (A) Header and (B) Body

The LINE SDK for Flutter is a Flutter plugin that lets you access the functions of LINE SDK for iOS and LINE SDK for Androidin Flutter apps with Dart.

To use the Messaging API, you must have a channel. To create a channel, create a LINE Official Account and enable the use of Messaging API for your LINE...

The channel access token is an opaque string that is used to verify that the application attempting to use the channel has permission to use the channel. With...

The LINE SDK for iOS Swift reports errors in detail. Handle reported errors so that your users can see how to recover from errors.

To make your LINE MINI App a verified MINI App, your application must be submitted to LY Corporation for review.

When you open a LIFF app within the LINE app, the LIFF app will open in either the LIFF browser or LINE's in-app browser. The LIFF browser and LINE's in-app...

You can provide users with a rich menu with tab switching using per-user rich menus. To switch between rich menus with ease, like switching between tabs, use...

LINE API Expert is a program that recognizes skilled engineers who have a deep understanding of the APIs provided by LINE and are influential in the community...

The LINE Platform issues ID tokens compliant with the OpenID Connect specification, allowing you to securely obtain user profile information (user ID, display...

Your message may fail to be delivered and in that case, you'll get a 5xx error or request time out. But even if you get such error, there is a possibility that...

Using the video component of Flex Message, you can display a video in the hero block. For more information on sending a Flex Message, see Send Flex Messages.

When a user launches the LIFF app in a LIFF browser or a user launches the LIFF app in an external browser by logging in with the method, the LIFF app can get...

When developing web apps using LINE Login, follow these development guidelines. Prohibited matters

This page explains the items to configure after your application for in-app purchase has been approved. In the In-app purchase tab within the LINE MINI App...

To provide the best possible LINE MINI App experience to your users, take the performance of LINE MINI App into consideration. A good reference regarding the...

You can create coupons using the Messaging API and send them to users as messages from your LINE Official Account.

Download the latest versions of the source code for the LINE SDK for iOS, Android, Unity and Flutter.

ZSH and Terminal Tutorial Series

LINE Developers Thailand

You need to have a LINE Official Account to use the Add friend button. When your website visitor clicks this button, your Official Account will be added as...

Getting user profile and ID tokens after login with the LINE SDK for Android.

LY Corporation provides an API (hereafter called LINE API) that enables external companies and developers to connect with LY Corporation services. The LINE...

This topic explains how to use LINE Login v2.0 endpoints to manage users who have logged in through the LINE Login API.

As long as your LINE MINI App updates don't involve making changes to the specified core information, you don't need to undergo another review process.

Use the Messaging API to build bots to provide personalized experiences on LINE to your users.

Every time a user adds your LINE Official Account as a friend or sends it a message, the LINE Platform sends an HTTP POST request with a webhook event object...

An overview of the workflow for LINE MINI App development

LY Corporation provides LINE API Status for checking the availability and outage status of the LINE Platform.

If the user adds your LINE Official Account as a friend or sends a message to your LINE Official Account, LINE Platform sends a webhook event to the URL (bot...

This page explains the specifications and constraints, design considerations, and recommended implementation methods for using the in-app purchase feature in...

With LINE Beacon, your bot receives beacon webhook events whenever a LINE user enters a beacon region. You can customize your bot app to interact with users...

This page explains best practices for provider and channel management.

This page explains how to integrate LINE Login into your web app. If you don't have an app to integrate LINE Login, you can use a sample app. See Getting...

Release notes for the LINE SDK for Android. See the latest changes and releases.