Open-source alternatives to Reader

Pixiv-Shaft is a mobile application for browsing, searching, and downloading artwork and novels from Pixiv. It wraps Pixiv's internal API endpoints with authentication, rate limiting, and response parsing, and manages concurrent downloads with pause, resume, retry, and batch processing capabilities using a priority-based queue. The application also includes a dedicated novel reader that renders Pixiv novels with chapter navigation, bookmarking, and R18 content handling. The application distinguishes itself through multi-account session management, allowing users to manage multiple Pixiv login

LibreraReader is a multi-format e-book reader and digital library manager designed for mobile and desktop devices. It functions as a customizable document renderer and a text-to-speech document player that converts written text into spoken audio via a configurable speech engine and integrated media player. The project distinguishes itself through a high degree of visual and functional customization, including the ability to inject custom CSS for styling overrides and the use of pluggable rendering engines to balance speed and stability. It includes specialized navigation tools such as a verti

turn.js is an HTML5 page flip library and digital book viewer used to render documents as interactive books. It simulates realistic book page-turning effects for web content and provides a navigation interface for flipping through pages via mouse clicks or touch gestures. The library supports both single and double page layouts and can synchronize the current page position with browser navigation history. It allows for the dynamic loading of page content and the ability to manage book pages by adding or removing individual sections. Capability areas include content magnification through zoom

epub.js is a JavaScript library for parsing and displaying EPUB files within a web browser. It functions as a digital publication layout engine and rendering library that enables the creation of browser-based eBook readers with support for both paginated spreads and continuous scrolling. The project provides a specialized framework for interactive eBook annotation and precise location tracking. It uses Content Fragment Identifiers to represent text positions as unique strings, allowing for stable bookmarking, text highlighting, and note-taking. The library covers a broad range of capabilitie

Dunst is a lightweight notification daemon for Linux desktop environments that receives and displays system alerts via the DBus protocol. It functions as a configurable alert service and notification manager, rendering pop-up messages for X11 and Wayland. The project distinguishes itself through a pattern-based rule engine that allows for dynamic alert filtering and conditional modifications of visual styles or behavioral settings based on the sending application or category. It also supports notification workflow automation by triggering external scripts and system commands when specific not

This is a framework for building desktop applications that reside in the system tray using Electron. It functions as a system tray integration library and window manager, providing the necessary components to handle native tray icons, tooltips, and the associated window lifecycles for menubar applications. The framework coordinates native system tray interactions with web-based user interfaces. It maps application commands to the operating system's native menu system and orchestrates the visibility and positioning of child windows relative to tray icon click events. The project covers native

Phoenix is a macOS workspace automator and window manager that uses a JavaScript scripting engine to control system-level behaviors. It functions as an AppleScript automation bridge, allowing users to programmatically manipulate application states, window geometry, and desktop interactions. The project enables the creation of custom workflows by binding keyboard shortcuts to JavaScript functions. This allows for the automation of complex system actions, such as organizing application layouts across multiple screens and managing virtual spaces. Its capability surface covers window and applica

This project is a multi-room music server and library aggregator that centralizes local audio files and various streaming services into a single unified database. It functions as a media controller for DLNA and UPnP devices, enabling the management of music, podcasts, and audiobooks across networked speakers. The system is distinguished by its ability to synchronize audio playback across multiple speakers and brands simultaneously. It features a digital signal processor for loudness normalization and frequency correction, alongside an acoustic fingerprinting engine used for metadata enrichmen

This project is a technical text renderer designed to display complex mathematical notation and syntax-highlighted code within digital document formats. It functions as a MathML technical renderer and a system for producing static site generated documentation. The project creates digital textbooks available as both HTML5 digital books and standardized EPUB3 eBooks. It transforms source materials into pre-rendered HTML and EPUB files, ensuring the content is compatible with modern web browsers and electronic book readers. The rendering surface utilizes a responsive layout with viewport adapta

Readest is a cross-platform digital book reader and library management system designed to render multi-format ebook files across different devices. It provides a consistent interface for viewing digital content while coordinating reading progress, bookmarks, and notes through synchronization services. The application includes specialized tools for technical and academic reading, such as code syntax highlighting, a virtual split-screen viewport for comparing documents, and full-text search for rapid information retrieval. It further extends the reading experience with integrated dictionary loo

Librum is a cross-platform digital ebook reader and library manager designed to render multiple book formats. It functions as an integrated reading assistant and a system for organizing digital libraries across multiple devices. The project distinguishes itself by providing a self-hosted backend option, allowing users to maintain full control over their book data and metadata via a private server. It also integrates a language model assistant to provide text summarization, explanations, and translations of specific passages while reading. The application covers comprehensive library manageme

Novel-Plus is a content management system and online reading platform designed for hosting, managing, and distributing web novels across PC and mobile web interfaces. It provides a comprehensive environment for web novel publishing, featuring a multi-platform reader with bookshelves, customizable themes, and community commenting systems. The platform integrates an automated content crawler to gather and update literary data from external remote sources and employs a scalable text storage system using database sharding and flat files to handle large volumes of content. It also includes an inte

Zotero Style is a plugin for the Zotero reference manager that adds a set of interface enhancements for organizing and exploring research libraries. It provides tools for customizing PDF appearance, adding configurable tag columns with hierarchical nesting, saving and switching between multiple column layout views, tracking reading progress, and visualizing item relationships in an interactive graph. The plugin distinguishes itself through several specific capabilities: a relation graph that displays connected items and supports click-to-locate and focus-node interactions; a reading progress

snscrape is a Python-based social media web scraper and crawler designed to extract public posts, profiles, and hashtags from social networks without the use of official APIs. It functions as an archival tool and a utility for open-source intelligence data collection, allowing for the gathering of publicly available information to investigate trends and people. The tool facilitates social media data extraction for research and archival purposes, enabling the creation of historical records of conversations and user activity. It supports workflows for academic social analysis and the export of

Movie Data Capture is a media library organizer and movie metadata scraper designed to automatically categorize and name files in a local media collection. It functions as an automated content tagger that identifies movie files and applies descriptive tags by extracting film details from web databases. The system utilizes an HTTP web scraper to fetch information from external APIs and remote HTML content. It employs a filename pattern parser to extract movie titles and release years from local files using regular expressions, which are then used to automate search queries. The tool maps scra

Jasmine is a digital comic reader and community content platform designed for browsing, reading, and organizing digital comic collections. It functions as a comic library manager that allows users to track reading progress, save favorite titles, and categorize comic series. The application is an offline-capable web app that employs local-first data and content caching to ensure comic pages remain accessible without an internet connection. It features a responsive page viewer that adjusts comic dimensions based on the device screen size to maintain readability. The platform integrates social

InfiniteCycleViewPager is an Android user interface component that enables continuous scrolling through a set of items without a defined start or end. It functions as an infinite loop UI component and carousel that supports both horizontal and vertical orientations. The library provides a custom page transition system that creates visual depth by scaling and offsetting pages as they move toward the center view. It also includes an auto-scrolling mechanism that rotates through content based on a specified time interval. The project implements these behaviors by simulating a virtual index loop

wxParse is a rich text parser and renderer specifically designed for the WeChat Mini Program ecosystem. It transforms standard HTML tags and Markdown syntax into native visual elements and compatible layouts. The system processes structured text strings into a repeating list of visual components and media links. It handles the conversion of complex text formats into formatted media and hyperlinks to ensure content displays correctly across mobile devices. The project manages content through regular expression-based parsing and schema-driven element mapping, translating identified content typ

This project is a markdown-based personal knowledge base and digital learning journal used to store notes and summaries from books and technical literature. It serves as a reading summary repository and technical reference library for archiving key takeaways and insights from non-fiction and professional materials. The collection functions as a digital garden for curating insights from books, articles, and videos. It specifically focuses on distilling complex architectural patterns, technical concepts, and professional leadership principles into a searchable format for long-term reference. T

Collision is a command-line interface error report formatter and developer debugging tool. It functions as a terminal UI component that converts raw application crash logs into stylized, readable error messages. The tool focuses on application crash diagnostics and command-line error reporting to improve the developer experience. It transforms technical error reports and stack traces into a clean, human-readable format to simplify the process of identifying and fixing software bugs. The project achieves this by intercepting standard error streams and using pattern-matching to parse raw log s

Komga is a self-hosted digital comics and eBook server that organizes, serves, and streams CBZ, CBR, PDF, and EPUB files through a web interface. Built as a Java Spring Boot application with SQLite-based metadata storage, it provides multi-user access controls with individual reading progress tracking and supports the OPDS protocol for compatibility with third-party reader applications. The server distinguishes itself through comprehensive authentication options, including OAuth2 and OpenID Connect support with automatic account creation and email verification, alongside traditional cookie an

node-ytdl-core is a JavaScript library for Node.js designed to extract metadata and stream video and audio content from YouTube. It serves as a media downloader and stream fetcher, allowing users to retrieve video details and media data from remote sources. The library provides specialized capabilities for video extraction, including the ability to parse media URLs for unique identifiers and analyze available formats. It allows for the selection and filtering of specific video and audio streams based on quality and resolution criteria. The project manages network traffic through rate limit a

apidoc is a source-code API documentation generator that parses specialized annotations within comments to automatically create a searchable API documentation website. It functions as an annotation-based API parser and a static documentation site generator, extracting definitions directly from the codebase to maintain a synchronized reference. The tool is designed as a multi-language parser, using configurable regular expressions to extract metadata from various programming languages. It can also serve as a JSON API definition exporter, converting source-code comments into raw JSON files for

Cimoc is a manga reader application and cross-platform ebook viewer designed for reading digital comics and image-based documents. It functions as both an online content aggregator and an offline media library, supporting the display of media from local files and remote web sources. The application integrates various web providers through a custom parser system to fetch and display online content. It includes a synchronization system to save application settings and reading progress to a remote server, maintaining consistency across different devices. Users can customize their reading experi

Copymanga is a mobile manga reader application designed for browsing, reading, and downloading manga content from remote web sources. It functions as a manga library manager that allows users to organize favorite series and track their reading progress. The application includes a cross-device synchronization client that maintains user identity, preferences, and reading history across multiple devices via cloud storage. It also operates as an offline downloader, saving manga chapters as compressed image files to local storage for consumption without an internet connection. The platform covers

UltraViewPager is an Android UI component and ViewPager extension that provides a library of page transition animations and an infinite paging controller for mobile screens. It functions as a reusable interface element for rendering paging containers with custom dimensions and aspect ratios. The project implements circular paging navigation that cycles back to the first page after the final screen is reached, creating a continuous loop. It also includes a timer-driven mechanism for automated content rotation and a coordinate-based engine to interpolate view positions and alpha values during p