Screenshot featuring the "LINE Friends" stickers
|Initial release||March 2012|
|Operating system||macOS, Windows, Android, iOS|
|Available in||17 languages|
Line (styled in all caps as LINE) is a freeware app for instant communications on electronic devices such as smartphones, tablet computers, and personal computers. Line users exchange texts, images, video and audio, and conduct free VoIP conversations and video conferences. In addition, Line is a platform providing various services including digital wallet as Line Pay, news stream as Line Today, video on demand as Line TV, and digital comic distribution as Line Manga and Line Webtoon. The service is operated by Line Corporation, a Tokyo-based subsidiary of South Korean internet search engine company Naver Corporation.
As its competitor Kakao dominated the South Korean messaging market, Naver Corporation launched a messenger application NAVER Talk in February 2011 in South Korea. However, because the South Korean messaging market was dominated by Kakao, the business of NAVER Talk was suppressed. Naver Corporation was expanding their messaging application and targeted to other countries' messaging markets which have not been developed yet. Naver Corporation released their messaging application, which changed its name to 'LINE', to the Japanese messaging market in 2011. As LINE became a huge success, finally NAVER combined NAVER Talk and LINE in March 2012. They changed NAVER's Japanese branch name from NHN JAPAN to LINE Corporation. LINE reached 100 million users within eighteen months and 200 million users only six months later. Line became Japan's largest social network in 2013. In October 2014, Line announced that it had attracted 560 million users worldwide with 170 million active user accounts. In February 2015, it announced the 600 million users mark had been passed and 700 million were expected by the end of the year. It is the most popular messaging application in Japan. It is also popular in Taiwan, Thailand, Indonesia, Cambodia and Turkmenistan.
Line was originally developed as a mobile application for Android and iOS smartphones. The service has since expanded to BlackBerry OS (August 2012), Nokia Asha (Asia and Oceania, March 2013), Windows Phone (July 2013), Firefox OS (February 2014), iOS tablets (October 2014), and as a Chrome Browser Application (via the Chrome Web Store). At one point, Line was available as a website (non-browser-app[clarification needed (see talk)]), but it has since been discontinued. The application also exists in versions for laptop and desktop computers using the Microsoft Windows and macOS platforms.
Line began as a disaster response. In March 2011, the Tōhoku earthquake and tsunami damaged Japan's telecommunications infrastructure nationwide, obliging employees at NHN Japan, a unit of South Korea's NHN Corporation, to rely on Internet-based resources to communicate. The company's engineers developed Line to facilitate this, and the company released their app for public use in June 2011.
The application proved hugely popular, and by late October, Line experienced an unexpected server overload. After concluding that the scalability process needed to be improved, NHN Japan chose to adopt HBase as the primary storage for user profiles, contacts, and groups. Within eighteen months of its release, Line reached 100 million users; six months later, it reached 200 million and by November 25, 2013, was used by 300 million users.
On July 3, 2012, NHN Japan announced the new Line features Home and Timeline. The features allowed users to share recent personal developments to a community of contacts in real-time, similar to the status updates in social networking services such as Facebook.
On 6 February 2013, the success of Line led NHN Japan to announce a new spinoff company named Line Corporation which continues to develop Internet resources such as Line, the Naver Japan search portal, and the Livedoor ISP and blog platform. Games, including those for the Line Game brand, remain under the auspices of Hangame Japan. A new joint venture named Line Plus Corporation develops overseas markets. At launch, the majority of Line Plus shares were held by the newly created Line Corporation (60%) with the remaining shares (40%) held by its Korean parent NHN Corporation.
Line began in Spring 2011 as a communication system for NHN Japan employees. It then saw explosive growth when released to the public in June of that year. By 18 January 2013, Line had been downloaded 100 million times worldwide. The number expanded to 140 million by early July 2013 and to 200 million by July 21. As of June 2016, Japan claimed 68 million users while Thailand had 33 million. As of February 2014, Indonesia had 20 million users, Taiwan 17 million, while India and Spain had 16 million each. NHN representatives announced plans to reach 300 million by further expansion in East Asia, Spain, and Chile. In April 2014, Naver announced that Line had reached 400 million worldwide users, and by 2017 this had grown to 700 million.
Line is an application that works on multiple platforms and has access via multiple personal computers (Windows or macOS). The application will also give an option of address book syncing. This application also has a feature to add friends through the use of QR codes, by Line ID, and by shaking phones simultaneously. The application has a direct pop-out message box for reading and replying to make it easy for users to communicate. It also can share photos, videos and music with other users, send the current or any specific location, voice audio, emojis, stickers and emoticons to friends. Users can see a real-time confirmation when messages are sent and received or use a hidden chat feature, which can hide and delete a chat history (from both involved devices and Line servers) after a time set by the user. The application also makes free voice and video calls. Users can also chat and share media in a group by creating and joining groups that have up to 500 people. Chats also provide bulletin boards on which users can post, like, and comment. This application also has timeline and homepage features that allow users to post pictures, text and stickers on their homepages. Users can also change their Line theme to the theme Line provides in the theme shop for free or users can buy other famous cartoon characters they like. Line also has a feature, called a Snap movie, that users can use to record a stop-motion video and add in provided background music.
In January 2015, Line Taxi was released in Tokyo as a competitor to Uber. Line launched a new android app called "Popcorn buzz" in June 2015. The app facilitates group calls with up to 200 members. In June a new Emoji keyboard was also released for iOS devices, which provides a Line-like experience with the possibility to add stickers. In September 2015 a new Android launcher was released on the Play Store, helping the company to promote its own services through the new user interface.
Line features a Sticker Shop where users are able to purchase virtual stickers depicting original and well-known characters. The stickers are used during chat sessions between users and act as large emoji. Users can purchase stickers as gifts, with many stickers available as free downloads, depending on country availability. Purchased stickers are attached to an account and can be used on other platforms. New sticker sets are released weekly. Line's message stickers feature original characters as well as a number of popular manga, anime and gaming characters, movie tie-ins, and characters from Disney properties such as Pixar. Some sticker sets, such as those that celebrate special events like the 2012 Summer Olympics, are released for only a limited time.
There are over 1 billion stickers sent by worldwide users on a daily basis.
NHN Japan created LINE Games in 2011. Only those with an account to the Line application can install and play Line Game games. Players can connect with friends, send and accept items, and earn friend points. The game range includes puzzles, match-three, side-scroller, musical performance, simulation, battle, and spot-the-difference games. In September 2013, Line Corporation announced its games had been downloaded 200 million times worldwide.
On July 10, 2017, LINE Games acquired NextFloor Corporation, developers of Dragon Flight and Destiny Child. On January 5, 2017, LINE Games was announced as the publisher for Hundred Soul (formerly known as Project 100) by Hound 13.
On December 12, 2018, LINE Games held a media event called LPG (LINE Games-Play-Game) to introduce its games for 2019. Mobile games announced include: Exos Heroes (by OOZOO), Ravenix: The Card Master (also by OOZOO), Dark Summoners (by SkeinGlobe), Project PK (by Rock Square), Super String (by Factorial Games). Project NM by Space Dive was also announced for PC. Games to be released on mobile and PC include: Project NL (by MeerKat Games) and Uncharted Waters Origins (by LINE Games and Koei Tecmo).
Line introduced Line Pay worldwide on December 16, 2014. The service allows users to request and send money from users in their contact list and make mobile payments in store. The service has since expanded to allow other features such as offline wire transfers when making purchases and ATM transactions like depositing and withdrawing money. Unlike other Line services, Line Pay is offered worldwide through the Line app.
Line Taxi was launched in January 2015 in partnership with Nihon Kotsu, a local taxi service in Japan. Just like Line Pay, Line Taxi is not offered as a separate app but rather through the Line app where users can request a taxi and automatically pay for it when they connect their account to Line Pay.
Announced alongside Line Pay and Line Taxi, a service that allows users to instantly access delivery services for registered food or products and services.
A news hub integrated in the Line app.
A referral program for online shopping. Customers get extra discount or earn Line Points by purchasing through the Line Shopping service.
2.11.1 / 2019-12-16 
In 2015, a lower-overhead Android app was released for emerging markets called Line Lite. This supports messages and calls but not themes or timeline. It became available worldwide in August 2015.
Line accounts can be accessed on only one mobile device (running the app version), plus one personal computer (running the version for those). Additional mobile devices can install the app but require different mobile numbers or e-mail addresses for the Line account.
If "LINE Lite" for Android is installed and activated, the user is told they will be "logged out of the normal LINE". This message does not make clear that it is impossible to log back in to the normal LINE, and the normal LINE will delete all history data when next launched.
In August 2013, it was possible to intercept a Line chat session at the network level using packet capture software and to reconstruct it on a PC. Messages were sent in clear text to Line's server when on cellular data but encrypted when using Wi-Fi most of the time.
Until February 2016, it was also possible to "clone" an iPhone from a backup, and then use the "cloned" iPhone to access the same Line account as used by the original iPhone. This loophole was widely rumored (but never proven) to have been used to intercept Line messages between the popular Japanese television personality Becky and her married romantic partner Enon Kawatani; the intercepted messages were published in the magazine Shukan Bunshun and led to the temporary suspension of Becky's television career.
In July 2016, Line Corporation turned on end-to-end encryption by default for all Line users. It had earlier been available as an opt-in feature since October 2015. The app uses the ECDH protocol for client-to-client encryption. In August 2016, Line expanded its end-to-end encryption to also encompass its group chats, voice calls and video calls.
Line suppressed content in China to conform with government censorship. Analysis by Citizen Lab showed that accounts registered with Chinese phone numbers download a list of banned words that cannot be sent or received through Line.
Line publicly confirmed the practice in December 2013. However, by 2014, access to Line chat servers has been entirely blocked by the Great Firewall, while the company still makes revenue in China from brick-and-mortar stores.
In Indonesia, Line has responded to pressure from the Indonesian Communication and Information Ministry to remove emojis and stickers it believes make reference to homosexuality, for example the emoji "two men holding hands". Line issued a public statement on the issue: "Line regrets the incidents of some stickers which are considered sensitive by many people. We ask for your understanding because at the moment we are working on this issue to remove the stickers".
In Thailand, Line is suspected of responding to pressure from the Thai government and, after previously approving 'Red Buffalo' stickers, which had been used to refer to the Red Shirts political faction, including by the Red Shirts themselves, removed the stickers.
In Russia, on May 3, 2017, access to Line chat servers has been entirely blocked by the Roskomnadzor and also added the Line servers to the Unified Register of Banned Sites, after which Russian users began to experience problems receiving and sending messages.
In popular culture
On November 20, 2012, Line was shown in Far East Movement's music video, featuring Sidney Samson, for the song "Change Your Life". DJ Virman is seen chatting with Sidney Samson at the middle of the music video.
On May 16, 2014, Warner Music Italy released the music video for Italian singer Annalisa's "Sento solo il presente", in which the recording artist is seen using the Line application at the beginning of the video.
In 2014, the LINE app was featured in Cycle 21 of America's Next Top Model.
The app had a significant presence in the popular Korean TV drama My Love from the Star.
The app is heavily featured in the visual novel Steins;Gate 0 under the name "Rine". Naver Corporation and Mages also partnered during the Steins;Gate 5th Anniversary Goods Project.
The 2017 original anime series Just Because! uses Line extensively throughout the series as a method of communication between characters.
In the Webtoon 'Age Matters' by Enjelicious, Line is referred to as Lime Corp, a company which the protagonist Daniel is the CEO of.
In 2019 it was featured in Don't Toy With Me, Miss Nagatoro.
In the visual novel Tsuki no Kanata de Aimashou, LINE was referenced as LIME.
Line Friends are featured characters that are shown in stickers of the application. They include Brown, Cony, Sally, James, Moon, Boss, Jessica, Edward, Leonard, Choco, Pangyo and Rangers. Two anime series, LINE OFFLINE and LINE TOWN, were produced in 2013, picturing the Line Friends as employees for the fictional Line Corporation.
On-demand assistant for food and messenger delivery services in Bangkok.
There are physical stores in Japan, South Korea, China, Taiwan, Hong Kong, Thailand, U.S. and a Korean online store to purchase LINE Friends merchandise. Occasionally, LINE will have pop-up or temporary stores globally.
- Comparison of cross-platform instant messaging clients
- Comparison of instant messaging protocols
- Comparison of Internet Relay Chat clients
- Comparison of LAN messengers
- Comparison of VoIP software
- List of SIP software
- List of video telecommunication services and product brands
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LINE had to conform to local regulations during its expansion into mainland China, and as a result the Chinese version of LINE, "LIANWO," was developed. The details of the system are kept private, and there are no plans to release them to the public.
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