Open Source Android Formats and Protocols
Sort By:
Formats and Protocols for Android
View 22802 business solutionsBrowse free open source Formats and Protocols and projects for Android below. Use the toggles on the left to filter open source Formats and Protocols by OS, license, language, programming language, and project status.
-
Go from Code to Production URL in SecondsSkip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
-
Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
-
1
KOReader
An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.
KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS. Multi-lingual user interface with a highly customizable reader view and many typesetting options. You can set arbitrary page margins, override line spacing and choose external fonts and styles. It has multi-lingual hyphenation dictionaries bundled into the application. Custom UI without animation, with paginated menus, adjustable text contrast, and easy zoom to fit content or page in paged media. Look up words with StarDict dictionaries / Wikipedia, add your own online OPDS catalogs and RSS feeds, share ebooks with other KOReader devices wirelessly. -
2
Cool Reader
A cross-platform XML/CSS based eBook reader
CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices. -
3
Froala Editor
The next generation Javascript WYSIWYG HTML Editor
Froala Editor is a lightweight WYSIWYG HTML Editor written in Javascript that enables rich text editing capabilities for your applications. Froala WYSIWYG HTML Editor is one of the most powerful JavaScript rich text editors ever. Froala Rich Text Editor has a vast range of both simple and complex features for all kind of use cases. Lots of features don't have to overwhelm the user with hundreds of buttons. The Froala's WYSIWYG editor smart toolbar can accommodate over 100 features in this simple interface. The Froala Smart Toolbar groups all actions by scope into 4 categories. It's an intuitive toolbar where every feature is easy to find and your most used ones are there for you. A WYSIWYG HTML editor created by developers, for developers. With a powerful API and documentation you can get started in minutes. -
4
shadowsocks-libev
Bug-fix-only libev port of shadowsocks
Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently, which is handy if you use an OpenWRT-powered router. Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend setting up your server's firewall rules to limit connections from each user. We strongly encourage you to install shadowsocks-libev from jessie-backports-sloppy. -
AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
-
5
Mongoose Embedded Web Server
An embedded web server
Mongoose is a networking library for C/C++. It implements event-driven non-blocking APIs for TCP, UDP, HTTP, WebSocket, MQTT. It is designed for connecting devices and bringing them online. On the market since 2004, used by vast number of open source and commercial products - it even runs on the International Space Station! Mongoose makes embedded network programming fast, robust, and easy. Cross-platform, works on Linux/UNIX, MacOS, Windows, Android, FreeRTOS, etc. Supported embedded architectures: ESP32, NRF52, STM32, NXP, and more. Built-in protocols: plain TCP/UDP, HTTP, MQTT, Websocket. SSL/TLS support: mbedTLS, OpenSSL or custom (via API). Used to solve a wide range of business needs, like implementing Web UI interface on devices, RESTful API services, telemetry data exchange, remote control for a product, remote software updates, remote monitoring, and others. -
6
CKEditor 5
Powerful rich text editor framework with a modular architecture
CKEditor 5 is a powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing. CKEditor 5 provides every type of WYSIWYG editing solution imaginable. From editors similar to Google Docs and Medium, to Slack or Twitter like applications, all is possible within a single editing framework. Builds are ready-to-use solutions to common editing needs. Every build can be customized to include a completely custom set of features. Features are flexible. You can write a custom feature once, and reuse it everywhere! CKEditor 5 is an ultra-modern JavaScript rich text editor with MVC architecture, custom data model and virtual DOM. It is written from scratch in ES6 and has excellent webpack support. Native integrations with Angular, React and Vue.js are available for your convenience. Building a mobile or cross-platform desktop application with JavaScript? CKEditor 5 is compatible with Electron and mobile devices (Android, iOS). -
7
google-java-format
Reformats Java source code to comply with Google Java Style
google-java-format is a program that reformats Java source code to comply with Google Java Style. The formatter can act on whole files, on limited lines, on specific offsets, passing through to standard-out (default) or altered in-place. There is no configurability as to the formatter's algorithm for formatting. This is a deliberate design decision to unify our code formatting on a single format. The formatter can be used in software that generates java to output more legible java code. Just include the library in your maven/gradle/etc. configuration. A google-java-format IntelliJ plugin is available from the plugin repository. To install it, go to your IDE's settings and select the Plugins category. Click the Marketplace tab, search for the google-java-format plugin, and click the Install button. -
8
Mozilla JPEG Encoder Project
Improved JPEG encoder
MozJPEG improves JPEG compression efficiency achieving higher visual quality and smaller file sizes at the same time. It is compatible with the JPEG standard, and the vast majority of the world's deployed JPEG decoders. MozJPEG is compatible with the libjpeg API and ABI. It is intended to be a drop-in replacement for libjpeg. MozJPEG is a strict superset of libjpeg-turbo's functionality. All MozJPEG's improvements can be disabled at run time, and in that case it behaves exactly like libjpeg-turbo. MozJPEG is meant to be used as a library in graphics programs and image processing tools. We include a demo cjpeg command-line tool, but it's not intended for serious use. We encourage authors of graphics programs to use libjpeg's C API and link with MozJPEG library instead. Progressive encoding with "jpegrescan" optimization. It can be applied to any JPEG file (with jpegtran) to losslessly reduce file size. -
9
LaTeX Gboard Dictionary
Importable dictionary for typing math symbols more easily
Importable dictionary for typing math symbols more easily on your Android phone by using keyboard shortcuts inspired by LaTeX. Gboard Dictionary for easily typing unicode symbols with shortcuts based on LaTeX. Shortcuts for Gboard are supported on all Android devices. As of now, these shortcuts cannot be imported to iOS devices. -
Full-stack observability with actually useful AI | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
-
10
Aztec
A reusable native Android rich text editor component
Aztec (which extends EditText) is a rich-text editor component for writing HTML documents in Android. You can check the minimum Android version supported by looking at the minSdkVersion configuration within build.gradle. There is an optional list type you can enable in the editor. In addition to ordered and unordered lists you can use task list. A task list is an unordered list that shows and saves checkboxes instead of bullets. By default, Aztec allows nested blocks. In certain cases, this doesn't have to be the preferred behavior. There is an option to disable nested blocks. When switched, this editor will always add media and horizontal rules after the currently selected block, not in the middle of it. Aztec now supports placeholders to draw views that are not natively supported by the EditText and Spannable API. The functionality creates a span in the visual editor and draws an Android view over it. -
11
Mark Mind
Mind map and outliner editor for Windows, Mac, Linux, Android and iOS
Mark Mind is a next-generation mind map editor. A mind map and outline tool based on electron vue. -
12
AniVu
All-in-one Android app for RSS, BitTorrent dl & play
AniVu, is an all-in-one tool for RSS subscription and updates, bit torrent downloads, and video playback. AniVu utilizes the MVI architecture and fully adopts the Material You design style. All pages are developed using Jetpack Compose. -
13
NewsBlur
NewsBlur is a personal news reader that brings people together
NewsBlur is an open-source, full-stack RSS news reader and social reading platform with a hosted service and native clients. The backend crawls and parses feeds at scale, stores stories, and pushes updates to users in near real time, while the web app and mobile apps provide rich reading experiences. Its hallmark is “training”: you can tell the system what you like or dislike—authors, keywords, tags—and it prioritizes stories accordingly, surfacing what matters most. Features like saved stories, tagging, full-text search, and offline reading make it practical for heavy information consumers. Social elements allow sharing to your own “blurblog,” following friends, and discovering curated content, which turns a solitary reader into a lightweight network. Architecturally, it demonstrates a production-ready aggregation pipeline, a multi-tenant web app, and cross-platform clients living in one coherent codebase. -
14
Wrap
The easy to use Swift JSON encoder
Wrap is an easy-to-use Swift JSON encoder. Don't spend hours writing JSON encoding code - just wrap it instead. Using Wrap is as easy as calling wrap() on any instance of a class or struct that you wish to encode. It automatically encodes all of your type’s properties, including nested objects, collections, enums and more. It also provides a suite of simple but powerful customization APIs that enables you to use it on any model setup with ease. -
15
XRichText
An Android rich text class library that supports graphic & text mixing
An Android-rich text class library that supports graphic and text mixing, supports editing and previewing and supports inserting and deleting pictures. Use ScrollView as the outermost layout containing LineaLayout, filled with TextView and ImageView. When deleting, delete the TextView and ImageView according to the position of the cursor, and the text will be automatically merged. The generated data is a list collection, and the data format can be customized. Version V1.4 opens the image click event interface and delete image interface. For specific usage methods, please refer to the following documentation, or refer to the demo implementation. The picture selector in the Demo is the Zhihu open-source library Matisse, which is adapted to the Android 7.0 system and uses FileProvider to obtain the picture path. The development environment is updated to AS 3.4.2 + Gradle 4.4 + compileSDK 28 + support library 28.0.0. -
16
ktlint
An anti-bikeshedding Kotlin linter with built-in formatter
No configuration, which means no decisions to make, nothing to argue about and no special files to manage. While this might sound extreme, keep in mind that ktlint tries to capture (reflect) official code style from kotlinlang.org and Android Kotlin Style Guide (+ we respect your .editorconfig and support additional ruleset|s). Built-in formatter. So that you wouldn't have to fix all style violations by hand. Customizable output. plain (+ plain?group_by_file), JSON, HTML and check style reporters are available out-of-the-box. It's also easy to create your own. A single executable jar with all dependencies included. ktlint is a single binary with both linter & formatter included. All you need is to drop it in (no need to get overwhelmed while choosing among dozens of code style options). -
17
layui
Classic modular front-end UI framework
Created by professional front-end, for full-level front-end and back-end developers, a low-threshold, out-of-the-box front-end UI solution. Layui (homonym: UI-like) is a front-end UI framework written with its own module specifications, following the writing and organization of native HTML/CSS/JS, with a very low threshold and ready to use. Its exterior is minimalist, but it does not lose its fullness. The volume is light and the components are abundant. Every detail from the core code to the API has been carefully crafted, which is very suitable for the rapid development of the interface. The first version of layui was released in the golden autumn of 2016. It is different from those UI frameworks based on the underlying MVVM. -
18
dxcut is a library for reading, editing, and writing dex and odex files which contain the class definition and Dalvik bytecode used by the Android operating system. This project includes a disassembler/decompiler, dex optimizer, and hooking utils.
-
19
adx - addressbook.xml
Minimalistic address book in web browser. No server or plugin needed.
Minimalistic but full-featured addressbook in your web browser. adx is a standalone and portable web app (online and offline). FEATURES Contact Management, portable, small (~350KB), lightweight, contact tagging, geo mapping, web accounts, trigger phone/Skype calls, etc. EXPORT FUNCTIONALITY vCard (as file or QR code via offline generator) HOW IT WORKS Your address-book (XML file) is transformed in your web browser (via XSLT) to a full-featured web application (HTML). REQUIREMENTS Web browser for viewing adx; online hosting or local storage is possible (for local storage most modern browsers need to be configured to allow access to local files); NO server, plugin or anything else needed. Any text editor can be used for contact editing (addressbook.xml). -
20
eBook
LaTeX book with examples, open-source eBook
LaTeX can be a challenging system to learn, but with this book of different examples, it becomes interesting and easier than ever. This comprehensive guide covers a lot of essentials and is written in a clear and concise style, showing the result vs code. Plus, it's #opensource and freely available, creating a collaborative learning environment. In this book the I try to reveal how you can find necessary pieces of TeX code looking only at already done work. If you want to create high-quality documents with LaTeX, check out the LaTaX book on GitHub, and feel free to ask any questions you have. -
21
Quadric
Application for simple base-2 binary to base-4 DNA-code conversion
Quadric is an opensource file converter created by the Jomcraft Network development team. In it's core functionality this small utility can transform base-2 binary files into base-4 DNA-coded human-legible ASCII-files. -
22
RRRP
Ric & Ry Remote Protocol
--English-- RRRP is a very simple remote protocol with tools of both server and client sides. The project is currently in development phase. First release will end up with - protocol specifications (very short :-)) - keyboard emulation - mouse emulation - server script (Windows OS specific) - client app (Android OS specific) The project - and the protocol - has been named as both founders nick names: Ric and Ry. --French-- RRRP est un procotole très simple de contrôle à distance et l'implémentation des deux côtés. Ce projet est actuellement en cours de développement. Les objectifs premiers sont - les specs du protocole (ça sera court :-)) - l'émulation du clavier - l'émulation de la souris - le script côté server (spécifique Windows OS) - l'appli client (spécifique Android OS) Le projet - et le protocole associé - a été nommé d'après les surnoms des deux fondateurs : Ric et Ry. -
23
Loid is used to work with Java and Objective-C to simplify data exchange bindings. Loid can generate meta-information available at run-time. Requesting clients or applications can inference on the meta-information for data binding.
-
24
Srilanka-Holidays
Sri Lankan official holidays open-source API & data
An open-source API to get Sri Lankan holidays and a list of Sri Lankan holidays in several file formats for easy integration with your applications. Holidays are updated every year and currently contains holidays starting from 2021. - Reliable and accurate local data updated every year - Available as both API and downloadable files in CSV, JSON, XML, ICS - Holiday categorizations (Public, Bank, Mercantile, Poya, etc.) -
25
APDU for Java
Utilities for generating and parsing APDU commands
This package provides utilities for generating and parsing APDU commands and responses as specified in ISO/IEC 7816. These utilities may be useful for implementers of smart card readers, smart card tracers and debuggers, or smart card emulation (such as Android's Host Card Emulation, or HCE).
