ESTsoft

ESTsoft is a South Korean application-software company founded in Seoul in 1993. It became widely recognized in Korea through the ALTools family of desktop utilities, particularly ALZip, an archive and compression program, and ALSee, an image viewer and editing application. The company’s early portfolio also included media players, password-management software, FTP tools, online storage, mapping applications, and other utilities aimed at household and business computer users. The ALTools product family was built around a distinctive Korean naming and visual system. The word “al” means “egg” in Korean, and many products used egg-shaped icons or mascots. This helped ESTsoft establish a recognizable consumer-software identity during the period when Korean PC users were installing a broad range of locally developed utilities. Alongside consumer products, ESTsoft developed business-oriented applications such as InternetDISK, an online-storage and file-sharing service, and related offerings for internet-service providers. ESTsoft became a publicly traded company when it was listed on the KOSDAQ market in 2008 under ticker 047560. During the 2010s, it broadened its business beyond desktop software and entered online gaming. Its game portfolio included Cabal Online, a massively multiplayer online role-playing game, Cabal 2, and HeroesGo, also known as Howling Sword. This expansion gave the company exposure to recurring online-service revenues and international game distribution, although ESTsoft’s identity remained closely associated with software products and digital services. Since the early 2020s, the company has increasingly emphasized artificial intelligence and software delivered as a service. Its AI portfolio includes Perso AI Dubbing for multilingual video translation and dubbing, Studio Perso for generating avatar-based video from text, AI Live Chat for real-time conversational avatar experiences, and Alan, an AI-powered search and generative-assistant service. These products reflect a shift from packaged desktop utilities toward cloud-based tools for media localization, customer interaction, enterprise communication, and digital content production. ESTsoft has also pursued partnerships and public-sector initiatives intended to take its AI capabilities into international markets. Its AI dubbing technology has been connected with South Korea’s K-FAST initiative for globalizing Korean content, while Perso Interactive has been positioned for applications in mobility, tourism, retail media, and customer experience. The company has demonstrated avatar and conversational-AI services at international technology events and has described use cases involving televisions, taxis, product promotion, and multilingual assistance. The company’s current positioning combines a long-established software-development base with newer AI services. Its traditional products address practical computing needs such as compression, file management, security, media handling, and storage. Its newer products target organizations seeking scalable SaaS tools for dubbing, virtual presenters, AI search, and interactive customer support. ESTsoft therefore occupies a hybrid position between a Korean software publisher, an enterprise-service provider, and an emerging AI platform company.

ESTsoft was established in Seoul in 1993 as a developer of desktop and business software. Its early growth took place during the expansion of personal computing and internet use in South Korea, when locally adapted utilities were important to both home and office users. The company developed a broad range of applications rather than concentrating on one narrow category. During the 2000s, ESTsoft organized many of its consumer utilities under the ALTools name. ALZip became the best-known product in the line, providing file compression and archive management across multiple formats. Other ALTools applications included ALSee for image viewing and editing, ALSong for music playback, ALFTP for file-transfer functions, ALPass for password management, ALShow for media playback, and ALYac for antivirus protection. The line also included products for GIF creation, mapping, browser toolbars, and digital-rights management. The egg-related naming and iconography of ALTools gave the products a common identity in the Korean market. ESTsoft also developed services for organizational and networked use. InternetDISK provided online storage and file-sharing functions, while iDisk was adapted for internet-service-provider environments. Additional products included instant-messaging software and other applications supporting the changing needs of connected computer users. This combination of consumer utilities and business software formed the company’s core before its expansion into online services and games. In 2008, ESTsoft was listed on the KOSDAQ market under ticker 047560. Public listing provided a new corporate framework as the company diversified its activities. During the 2010s, it entered online gaming with Cabal Online and later Cabal 2. These massively multiplayer online role-playing games extended ESTsoft into a service model based on persistent online communities, content updates, and digital distribution. HeroesGo, also known as Howling Sword, was another title associated with the company’s gaming activities. In the early 2020s, ESTsoft began placing greater emphasis on artificial intelligence. The company created the Perso AI family of services, introduced in 2024, comprising AI Dubbing, Studio Perso, and AI Live Chat. AI Dubbing is designed to translate and dub video into multiple languages. Studio Perso generates avatar-based video from text, while AI Live Chat provides interactive conversational agents that can be embedded in websites or other digital environments. The broader Perso Interactive concept applies real-time conversational avatars to customer service, information delivery, mobility, and media applications. ESTsoft also developed Alan, an AI-powered search engine and generative assistant. Together, these products represent a movement away from one-time desktop installations toward SaaS delivery, cloud processing, multilingual media production, and interactive AI experiences. In 2025, the company worked with ElevenLabs on AI-dubbing technology and was selected for South Korean government initiatives connected with AI and the globalization of Korean content. Its researchers also presented work on multilingual dubbing at the EMNLP 2025 System Demonstrations track. The company’s later activities expanded its partnership and international profile. ESTsoft announced K-content FAST channels using AI dubbing for global free ad-supported streaming television, and it demonstrated AI Promoter with Samsung Electronics at CES 2026. It also signed a memorandum with NTT and Nihon Kotsu to explore conversational AI avatars in Japanese taxis, where the technology could assist foreign visitors with translation and local recommendations. At Mobile World Congress 2026, ESTsoft presented Perso Interactive across several application zones. ESTsoft has additionally participated in South Korea’s national AI-foundation-model programs. It was selected for a government AI Foundation Model project in 2025 and subsequently advanced with the LG AI Research-led consortium developing K-EXAONE. These activities indicate that the company is seeking a role not only as an application provider but also as a participant in the country’s broader sovereign-AI and content-technology ecosystem.

1. 2026International AI demonstrations and partnerships

   The company presented Perso Interactive at CES and Mobile World Congress and pursued a Japanese taxi deployment with NTT and Nihon Kotsu.

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2. 2025Participation in Korean AI initiatives

   ESTsoft was selected for K-FAST and a Korean government AI foundation-model project.

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3. 2024Perso AI family launched

   ESTsoft introduced Perso AI services covering AI dubbing, avatar-video creation, and real-time avatar conversation.

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4. 2010Expansion into online games

   The company expanded into online gaming with titles including Cabal Online and later Cabal 2.

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5. 2008KOSDAQ listing

   ESTsoft became listed on South Korea's KOSDAQ market under ticker 047560.

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6. 2000ALTools portfolio expanded

   ESTsoft built a recognizable family of consumer utilities including ALZip, ALSee, ALSong, ALFTP, and related products.

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7. 1993ESTsoft founded in Seoul

   The company was established as a South Korean developer of desktop and business software.

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A South Korean software and AI-services provider serving consumers, enterprises, content companies, and public-sector or technology partners. The brand combines established desktop utilities and online services with cloud-based AI dubbing, virtual-avatar, search, and conversational-assistance products.

• ALZipCompression and archive utility

  ALZip is ESTsoft’s best-known desktop utility. It is used to compress, decompress, and manage files in archives and supports multiple archive formats, including ISO-related workflows. The product helped establish ESTsoft among Korean PC users and became the flagship of the broader ALTools family.

• ALSeeImage viewer and photo editor

  ALSee is an image-viewing and photo-editing application in the ALTools portfolio. It was designed for everyday users who needed to browse, organize, and make basic changes to image files without relying on specialized professional software.

• ALToolsConsumer software suite

  ALTools is the umbrella family for ESTsoft utilities such as ALZip, ALSee, ALSong, ALFTP, ALPass, ALShow, ALYac, and other applications. The portfolio covered compression, image handling, media playback, passwords, FTP, security, maps, and internet-related functions. Its egg-themed branding created a common identity across otherwise different tools.

• InternetDISKOnline storage and file sharing

  InternetDISK is an online storage and file-sharing service for users and organizations. ESTsoft also offered iDisk, a related version intended for internet-service providers and larger hosted-storage environments.

• Cabal OnlineMassively multiplayer online role-playing game

  Cabal Online is an online role-playing game that expanded ESTsoft into persistent multiplayer entertainment. The title broadened the company’s business beyond desktop utilities and required ongoing operation of an online game world, including content, community, and service management.

• Cabal 2Massively multiplayer online role-playing game

  Cabal 2 is a follow-up online role-playing title associated with ESTsoft’s gaming expansion during the 2010s. It extended the Cabal franchise into another persistent online game environment.

• Perso AI DubbingAI video dubbing SaaS2024

  Perso AI Dubbing is a SaaS platform for translating and dubbing video into multiple languages with artificial intelligence. It is aimed at content owners and distributors seeking to localize audiovisual material efficiently. ESTsoft has developed the service for international K-content distribution and has partnered with ElevenLabs in work related to AI voice and dubbing capabilities.

• Studio PersoAI avatar-video creation2024

  Studio Perso creates virtual-avatar video from text input. The service uses ESTsoft’s avatar technology to support the production of presenter-style or informational video without requiring a conventional filming setup. It forms one component of the wider Perso AI product family.

• AI Live ChatConversational AI avatar SaaS2024

  AI Live Chat provides interactive avatar agents for real-time conversation. Designed for embedding in websites and digital services, it can support customer interaction, information delivery, and other conversational use cases using technology related to Studio Perso.

• AlanAI search and generative assistant

  Alan is an AI-powered search engine and generative assistant developed by ESTsoft. It represents the company’s move into AI-mediated information discovery and answer generation alongside its media-localization and avatar services.

• Perso InteractiveReal-time conversational AI avatar

  Perso Interactive is a real-time conversational avatar service intended for mobility, tourism, retail media, customer experience, and information applications. ESTsoft has demonstrated potential uses in taxis, where the service could provide interpretation and travel assistance to international visitors.

• 2026AI Promoter with Samsung Electronics

  Global technology market

  At CES 2026, ESTsoft exhibited AI Promoter with Samsung Electronics. The service combines on-device AI and object recognition to explain Samsung flagship products.

  Outcome. The demonstration highlighted a retail and product-information use case for ESTsoft’s AI avatar and recognition technologies.

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• 2025K-FAST AI dubbing initiative

  South Korea · International content markets

  ESTsoft was selected for the Korean government's K-FAST initiative, which supports AI dubbing and the globalization of Korean content. The initiative aligns the company's Perso technology with international localization and distribution needs.

  Outcome. ESTsoft gained a government-supported role in an effort to use AI dubbing to expand the international reach of Korean content.

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• 2025Global K-content FAST channels

  Global · South Korea

  ESTsoft announced free ad-supported streaming television channels using its AI dubbing technology. Initial channels included TRAVEL ON and GAME ON, while FOOD ON and Series K were planned for Samsung TV Plus.

  Outcome. The plan positioned ESTsoft as an AI localization and channel-creation partner for internationally distributed Korean content.

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• 2026Advancement in the K-EXAONE consortiumStrategy

  ESTsoft participated in South Korea’s Independent AI Foundation Model Project through a consortium led by LG AI Research.

  What changed. The consortium advanced to the program’s second stage after receiving the highest score in the initial evaluation and continued work on the K-EXAONE sovereign AI model.

  Aftermath. ESTsoft strengthened its association with national-scale AI infrastructure and foundation-model development.

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• 2026Japanese taxi conversational-AI partnershipOther

  Real-time translation and travel assistance are potential applications for conversational avatars in transportation settings.

  What changed. ESTsoft signed a memorandum with NTT and Nihon Kotsu to explore introducing Perso Interactive into Japanese taxis.

  Aftermath. The proposed deployment expanded the service’s target applications from websites and media into mobility and tourism.

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• 2025Participation in Korea’s AI foundation-model programStrategy

  South Korea established national programs to strengthen domestic AI capabilities and develop foundation models.

  What changed. ESTsoft was selected to participate in an AI Foundation Model project led by the Ministry of Science and ICT.

  Aftermath. The initiative connected ESTsoft’s application and AI-service capabilities with a wider national AI-development effort.

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• 2024Launch of the Perso AI product familyProduct launch

  Advances in generative AI, synthetic media, and multilingual content created opportunities beyond ESTsoft’s traditional desktop software portfolio.

  What changed. ESTsoft launched Perso AI services covering AI video dubbing, avatar-video creation, and interactive avatar chat.

  Aftermath. The launch shifted the company’s product emphasis toward AI-enabled SaaS and enterprise-facing applications.

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• 2010Expansion into online gamingStrategy

  ESTsoft was historically associated with desktop and business applications and sought additional online-service opportunities.

  What changed. The company expanded into massively multiplayer online role-playing games, including Cabal Online and Cabal 2.

  Aftermath. Gaming became an additional business area and extended ESTsoft’s experience in operating persistent digital services.

  Source
• 2008KOSDAQ listingStrategy

  ESTsoft had developed a portfolio spanning consumer utilities and business software and sought a public-market structure for its continuing growth.

  What changed. The company listed on South Korea’s KOSDAQ market under ticker 047560.

  Aftermath. The listing marked ESTsoft’s transition into a publicly traded software company and preceded later diversification into online games and AI services.

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• 2026ESTsoft demonstrated AI Promoter with Samsung Electronics at CES

  At CES 2026, ESTsoft exhibited AI Promoter with Samsung Electronics. The service combines on-device AI and object-recognition technology to provide information about Samsung products.

  Product launch
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• 2026ESTsoft signed memorandum with NTT and Nihon Kotsu for taxi AI avatars

  ESTsoft agreed with NTT and Japanese taxi operator Nihon Kotsu to explore deploying Perso Interactive in taxis for interpretation, tourism information, and restaurant recommendations.

  Other
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• 2026ESTsoft presented Perso Interactive at Mobile World Congress

  The company demonstrated its real-time conversational avatar service at Mobile World Congress in Barcelona across mobility, information, retail-media, customer-experience, and developer-ecosystem zones.

  Product launch
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• 2026ESTsoft consortium advanced in South Korea's sovereign-AI program

  ESTsoft advanced to the second stage of the government's Independent AI Foundation Model Project as part of a consortium led by LG AI Research to develop the K-EXAONE model.

  Other
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• 2025ESTsoft selected for South Korea's K-FAST initiative

  ESTsoft was selected for a Korean government initiative supporting AI dubbing and the international distribution of Korean content.

  Other
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• 2025Perso Interactive cited in International Telecommunication Union AI report

  Perso Interactive was presented as an AI application example in the International Telecommunication Union's AI for Good Impact Report.

  Other
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• 2025ESTsoft announced global K-content FAST channels

  The company announced free ad-supported streaming television channels using AI dubbing technology, including TRAVEL ON and GAME ON, with additional channels planned for Samsung TV Plus.

  Product launch
  Source
• 2025ESTsoft joined the Korean AI Foundation Model project

  ESTsoft was selected to participate in an AI foundation-model project led by South Korea's Ministry of Science and ICT.

  Other
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1. ESTsoft
2. ESTsoft official website