Tachiyomi was a free and open-source
manga
are comics or graphic novels originating from Japan. Most manga conform to a style developed in Japan in the late 19th century, and the form has a long history in earlier Japanese art. The term is used in Japan to refer to both comics ...
and
comic
a medium used to express ideas with images, often combined with text or other visual information. It typically the form of a sequence of panels of images. Textual devices such as speech balloons, captions, and onomatopoeia can indicat ...
reader application for
Android devices. It was developed by Inorichi and released in 2014. The name "Tachiyomi" is derived from the Japanese words "tachi" (立ち) and "yomi" (読み), meaning "standing" and "reading."
Features
Tachiyomi offered a range of features. It supported multiple source extensions, allowing users to access manga from various online platforms. Users could create customizable libraries to organize their manga collection based on genres, authors, or reading progress. The application provided different reading modes, including single-page, double-page, and long-strip scrolling. Users could customize the app's appearance, layout, and reading controls. Tachiyomi allowed users to download manga chapters for offline reading. Integration with tracking services such as
MyAnimeList
MyAnimeList, often abbreviated as MAL, is an anime and manga social networking and social cataloging application website run by volunteers. The site provides its users with a list-like system to organize and score anime and manga. It facilitate ...
enabled users to track their reading progress and synchronize data across multiple devices.
Development

Tachiyomi was an open-source project hosted on
GitHub
GitHub () is a Proprietary software, proprietary developer platform that allows developers to create, store, manage, and share their code. It uses Git to provide distributed version control and GitHub itself provides access control, bug trackin ...
, allowing developers to contribute to its development and improvement. Due to its open-source nature, Tachiyomi has many specialized
forks
In cutlery or kitchenware, a fork (from 'pitchfork') is a Eating utensil, utensil, now usually made of metal, whose long handle terminates in a head that branches into several narrow and often slightly curved tine (structural), tines with whic ...
.
Cease and desist from Kakao Entertainment
In January 2024, the developers of Tachiyomi received a
cease and desist
A cease and desist letter is a document sent by one party, often a business, to warn another party that they believe the other party is committing an unlawful act, such as copyright infringement, and that they will take legal action if the oth ...
letter from a South Korean company
Kakao Entertainment
Kakao Entertainment Corp. () is a South Korean entertainment, mass media, and publishing company founded in 2021. A subsidiary of the Internet company Kakao, it was established subsequent to the merger of the latter's two subsidiaries KakaoPa ...
, demanding them to destroy the project and all of its forks. In response of the demands, the project's core developers have announced that the core version of the app will not be under active development and the project's repositories will be removed, following the cessation of providing source extensions for the app.
Multiple open-source developer teams have aimed to 'take up the mantle' and create successor apps following the cease and desist, such as Mihon.
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References
{{Reflist
External links
Tachiyomi on GitHub
Free and open-source Android software