Line (software)
Japanese super-app for messaging, social networking, and digital services.
Line is a Japanese freeware instant messaging and social networking app and service, operated by LY Corporation, co-owned by SoftBank Group and Naver. Launched in Japan in June 2011 by NHN Japan, a subsidiary of Naver, it was initially designed for text messaging and VoIP voice and video calling, later expanding into a super-app with services including a digital wallet (Line Pay), news stream (Line Today), video on demand (Line TV), and digital comic distribution (Line Manga and Line Webtoon). By 2013, Line became Japan's largest social network, and as of 2023 it is used by over 70% of the Japanese population, with significant popularity also in Indonesia, Taiwan, and Thailand.
- launch_date
- June 2011
- developer
- NHN Japan (subsidiary of Naver)
- current_operator
- LY Corporation (co-owned by SoftBank Group and Naver)
- field
- Instant messaging, social networking, super-app
- nationality
- Japanese
- known_for
- Becoming Japan's largest social network; popular in Japan, Indonesia, Taiwan, Thailand
Lore & Background
Line was inspired by the Tōhoku earthquake and tsunami of March 2011, which disrupted phone lines and SMS networks, leaving Wi-Fi and some 3G as usable alternatives. Naver/NHN co-founder Lee Hae-Jin and a team of engineers, then in Japan, observed many people turning to KakaoTalk. Within two months, NHN Japan tested a beta app accessible on smartphones, tablets, and PCs, launching it as Line in June 2011. Because Naver/NHN had superior cultural knowledge of Japanese users and a larger marketing budget, Line quickly surpassed KakaoTalk in Japan, aided by offering free voice calls—though KakaoTalk already offered that feature from its early versions.
Line experienced a server overload in October 2011 due to popularity, leading NHN Japan to adopt HBase for scalability. In December 2011, Naver announced Naver Talk would merge into Line. In July 2012, Home and Timeline features were added, allowing real-time sharing similar to Facebook. On April 1, 2013, NHN Japan was renamed Line Corporation. Line reached 100 million users within 18 months and 200 million six months later, gradually replacing carrier-based email as Japan's most popular communication method. By end of 2013, it had over 300 million registrants worldwide, with more than 50 million in Japan.
Line originally launched for Android and iOS, later expanding to BlackBerry OS (August 2012), Nokia Asha (March 2013), Windows Phone (July 2013), iPadOS (October 2014), and as a Google Chrome App, plus desktop versions for Windows and macOS. Note: Line did not have an official Firefox OS app in mainstream canon, contrary to some claims. In July 2016, Line Corporation held IPOs on the New York and Tokyo stock exchanges, delisting in December 2020 ahead of a merger with Z Holdings, completed on March 1, 2021, under which A Holdings (subsidiary of SoftBank Corporation and Naver Corporation) owns 65.3% of Z Holdings, operating Line and Yahoo! Japan.
Reader's Guide
Line's significance lies in its transformation from a simple messaging app into a dominant super-app in Japan and parts of Asia, reflecting a broader trend of platform consolidation. Its launch was directly catalyzed by the 2011 Tōhoku disaster, which exposed the fragility of traditional telecom infrastructure and the need for data-based communication. By offering free voice calls and culturally tailored features, Line outpaced rival KakaoTalk and became Japan's largest social network by 2013, used by over 70% of the population by 2023. Its expansion into services like Line Pay, Line Today, Line TV, and Line Manga illustrates the super-app model, where a single platform integrates messaging, payments, news, entertainment, and commerce. Line's user base, concentrated in Japan, Thailand, Taiwan, and Indonesia, with approximately 194 million monthly active users by 2025, demonstrates its regional importance. The merger with Z Holdings in 2021, combining Line with Yahoo! Japan under SoftBank and Naver ownership, further solidified its role in Japan's digital ecosystem. Line's sticker culture, including original Line Friends characters and over 1 billion daily sticker sends, also highlights its impact on digital communication and merchandising.
Did You Know?
- Line was inspired by the 2011 Tōhoku earthquake and tsunami, which disrupted phone lines and SMS, leading Naver/NHN co-founder Lee Hae-Jin to launch a messaging app within two months.
- Line reached 100 million users within 18 months of its June 2011 launch and 200 million six months later.
- Line's original default characters and stickers, known as Line Friends, were created by Kang Byeongmok (also known as 'Mogi') in 2011.
- As of 2023, for the first time, more Japanese seniors preferred using Line over email for communication.
From Imageboards to Mainstream
The Dead Internet Theory traces its earliest known roots to the image board Wizardchan, though pinpointing exact origins remains difficult given the challenges academics face in documenting online subcultures. The term gained a more defined identity in 2021 when a user going by "IlluminatiPirate" published a post on Agora Road's Macintosh Cafe esoteric board, explicitly referencing earlier discussions on both that board and Wizardchan. From there, the idea migrated rapidly across YouTube, Reddit, and Twitter, where content creators and online communities amplified its reach. A pivotal moment came in September 2021, when The Atlantic ran a widely cited article arguing the Internet had effectively "died" five years prior, lending the concept a veneer of mainstream journalistic legitimacy. By 2023, the theory had crossed into formal academic discourse through a CRC Press glossary entry, and by 2024 it appeared in the AI & Society journal, cementing its place in scholarly conversation.
Two Pillars: Observation and Conspiracy
The theory is structurally divided into two interlocking claims. The first, widely regarded as its central argument, holds that automated bots and algorithmically curated search results have largely supplanted genuine human activity on the web. Proponents point to search engines selectively limiting what gets indexed and displayed, and to the compounding effect of link rot—when pages disappear and every reference to them breaks—as evidence that users are funneled into a shrinking pool of curated, potentially artificial content. The second pillar is where the conspiratorial dimension enters: the assertion that governments, corporations, or other powerful actors are deliberately orchestrating this displacement to manipulate public perception. In the original 2021 post, the bot-displacement element was framed as the "setup," while the "thesis" identified the United States government as the architect, describing its actions as an "artificial intelligence-powered gaslighting of the entire world population." This two-part architecture has allowed commentators to engage with the observable phenomenon while setting aside the more speculative governance claims.
The AI Boom and a New Vocabulary
The Dead Internet Theory experienced a significant resurgence in the 2020s as large language model chatbots and text-to-image generators flooded the web with synthetic content. Social media platforms registered a measurable uptick in bot-driven activity, and algorithmic feeds increasingly surfaced low-quality AI-generated material at the expense of human-created posts. Commentators began linking these observable shifts directly to the theory's core predictions. The term "Dead Internet" itself started being used as a straightforward descriptor for online spaces dominated by generative content, with the word "theory" dropped entirely to signal a shift from speculation to observation. One 2026 article noted that the phrase had become colloquial shorthand for the assumption that bots now produce the majority of online material. The growing volume of AI content has even been compared to entropy increasing in a closed system, echoing the Second Law of Thermodynamics, as a way to capture the sense that organic human expression is being thermodynamically diluted.
Scholarly Refinement: Weak, Strong, and Leaner
Academic engagement with the Dead Internet Theory has produced a useful taxonomy. A 2025 chapter in Market-Oriented Disinformation Research distinguished a "weak" version—elites deploying bots to steer public discourse—from a "strong" version in which society has already collapsed after some catastrophic event and an unknown entity, possibly alien or superintelligent AI, maintains the illusion of connectivity. Separately, a 2026 publication in the journal Computer proposed a "leaner" formulation that retains the core empirical observations about bot proliferation and algorithmic curation while explicitly discarding the conspiratorial governance narrative. The 2023 CRC Press glossary entry described the full theory, whereas the 2024 AI & Society opinion piece focused narrowly on AI-generated content and interactions. Together, these sources have been cited by subsequent academic work, and several commentators now regard the theory as containing a kernel of truth or as a plausible forecast of the web's trajectory, even when its most extreme claims are set aside.
Frequently Asked Questions
What is Line (software)?
Line is a Japanese instant messaging and social networking app that grew into a full super-app bundling a digital wallet, news feed, video streaming, and comic distribution. It launched in June 2011 and quickly became a central part of everyday digital life in Japan and several other Asian countries.
Who developed and currently operates Line?
The app was originally built by NHN Japan, a subsidiary of South Korea's Naver, before being launched in 2011. It is now run by LY Corporation, a joint venture co-owned by SoftBank Group and Naver.
How did Line evolve from a simple chat app into a super-app?
Line began in 2011 as a text-messaging and VoIP calling tool, then steadily added layers like Line Pay for payments, Line Today for news, Line TV for video, and Line Manga/Webtoon for comics. By 2013 it had already overtaken competitors to become Japan's largest social network, and the all-in-one super-app model became its defining trait.
How dominant is Line in Japan?
As of 2023, more than 70% of the Japanese population use Line, making it the country's default social and messaging platform. It reached the top spot in Japan just two years after its 2011 debut.
Where is Line popular outside of Japan?
Line has a strong user base in Indonesia, Taiwan, and Thailand, where it often serves as a primary messaging and social tool. Its footprint across East and Southeast Asia made it one of the most recognizable messaging brands in the region.
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