Showing 491 open source projects for "apps"

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  • 1
    Hypatia

    Hypatia

    A realtime malware scanner

    Hypatia is a free and open-source malware scanner for Android that aims to provide on-device, real-time scanning with minimal battery and resource impact using signature-based detection inspired by ClamAV style databases. Designed as an Android app, it scans user filesystems and installed applications either on demand or in real time when files are written or renamed, operating completely offline aside from occasional signature database downloads. The project is offered under an AGPL-3.0...
    Downloads: 11 This Week
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  • 2
    Scene Framework

    Scene Framework

    Android Single Activity Framework compatible with Fragment

    ...The repository may aim to help developers manage complex state, transitions, or UI/navigation flows in applications, or provide a structured framework for rendering or content pipelines. As such, Scene could serve as a backbone for media apps, games, or modular user interface projects, offering abstractions for scene management, resource loading, event dispatching, and lifecycle handling. Because of its open-source status, developers may adapt it to their own use-cases — customizing rendering, UI transitions, or content management — though the maturity and documentation may vary.
    Downloads: 0 This Week
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  • 3
    ObjectBox Java Database

    ObjectBox Java Database

    Java and Android Database - fast and lightweight without any ORM

    High-performance NoSQL database with integrated Data Sync for decentralized Edge Computing. Get fast access to the data you need across Embedded Devices, IoT, and Mobile. ObjectBox is 10x faster than any alternative, with high-speed data ingestion that increases response times. Check out our benchmarks. ObjectBox’ out-of-the-box synchronization makes data available when needed where needed, eliminating data islands and improving data flow. Develop applications that work on- and offline,...
    Downloads: 0 This Week
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  • 4
    React Native Contracts

    React Native Contracts

    React Native Contacts

    A React Native library for accessing and managing contacts on iOS and Android devices, enabling apps to retrieve and manipulate contact data.
    Downloads: 0 This Week
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    React Native Image Resizer

    React Native Image Resizer

    Resize local images with React Native

    Resize local images with React Native. Since the version 3.0.0 this package supports the new architecture out of the box (Turbo Module). It also has retro compatibility with the old one.
    Downloads: 0 This Week
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  • 6
    Planetiler

    Planetiler

    Flexible tool to build planet-scale vector tilesets

    ...Planetiler aims to be fast and memory-efficient so that you can build a map of the world in a few hours on a single machine without any external tools or database. Vector tiles contain raw point, line, and polygon geometries that clients like MapLibre can use to render custom maps in the browser, native apps, or on a server. Planetiler packages tiles into an MBTiles (SQLite) or PMTiles file that can be served using tools like TileServer GL or Martin or even queried directly from the browser. See awesome-vector-tiles for more projects that work with data in this format. Planetiler works by mapping input elements to vector tile features, flattening them into a big list, and then sorting by tile ID to group them into tiles.
    Downloads: 6 This Week
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  • 7
    Fresco

    Fresco

    An Android library for managing images and the memory they use

    ...When the image goes off-screen, it automatically releases its memory. A decompressed image - an Android Bitmap - takes up a lot of memory. This leads to more frequent runs of the Java garbage collector. This slows apps down. The problem is especially bad without the improvements to the garbage collector made in Android 5.0. On Android 4.x and lower, Fresco puts images in a special region of Android memory. It also makes sure that images are automatically released from memory when they’re no longer shown on screen. This lets your application run faster - and suffer fewer crashes.
    Downloads: 9 This Week
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  • 8
    photon

    photon

    An open source geocoder for openstreetmap data

    ...It is based on elastic search - an efficient, powerful and highly scalable search platform. photon was started by komoot and provides search-as-you-type and multilingual support. Find our public API and demo on photon.komoot.io. Until October 2020 the API was available under photon.komoot.de. Please update your apps accordingly.
    Downloads: 0 This Week
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  • 9
    Aegis Authenticator

    Aegis Authenticator

    A free, secure and open source app for Android

    Aegis Authenticator is a free and open-source two-factor authentication (2FA) app for Android that helps users secure their online accounts by generating cryptographic one-time passwords (OTPs) such as TOTP and HOTP codes. Unlike many proprietary MFA apps, Aegis is designed with user privacy and local control in mind, storing secrets only on the device in an encrypted vault protected by PIN or biometric unlock, and offering features like backups encrypted with a user-chosen passphrase. It supports importing accounts from QR codes, exporting encrypted backups for safe storage, and grouping or labeling tokens so managing dozens of accounts is simple. ...
    Downloads: 5 This Week
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  • 10
    Simplenote for Android

    Simplenote for Android

    Simplenote for Android

    ...The app supports Markdown formatting, letting users add structured text like headers, lists, and links with easy previewing. Because it ties into the same Simplenote account used on iOS, macOS, web, or desktop apps, content stays consistent and accessible regardless of the platform you use.
    Downloads: 3 This Week
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  • 11
    Google Maps SDK for Android Samples

    Google Maps SDK for Android Samples

    Samples demonstrating how to use Maps SDK for Android

    Create dynamic, interactive and personalized experiences with maps, locations and geospatial experiences for your Android apps. Create an account, generate an API key, and start creating. Learn how to load the Maps SDK for Android and add a map with a bookmark to your web application. You can customize almost all aspects of the map, such as routes, landforms and places of interest, among others. Find the current location of an Android device and display details of the place or other place of interest in that location. ...
    Downloads: 3 This Week
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  • 12
    GSYVideoPlayer

    GSYVideoPlayer

    Android video player library

    ...Developers can embed players in RecyclerView lists, wire custom controls, and switch underlying renderers or decoders to match device capabilities and formats. Hooks for callbacks and state listeners make it straightforward to integrate analytics, preloading, and error recovery into apps. With a modular design and extensive demos, GSYVideoPlayer serves both as a practical production player and as a reference for building polished media experiences on Android.
    Downloads: 7 This Week
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  • 13
    OpenBot

    OpenBot

    OpenBot leverages smartphones as brains for low-cost robots

    OpenBot leverages smartphones as brains for low-cost robots. We have designed a small electric vehicle that costs about $50 and serves as a robot body. Our software stack for Android smartphones supports advanced robotics workloads such as person following and real-time autonomous navigation. Current robots are either expensive or make significant compromises on sensory richness, computational power, and communication capabilities. We propose to leverage smartphones to equip robots with...
    Downloads: 4 This Week
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  • 14
    Signal Server

    Signal Server

    Server supporting the Signal Private Messenger applications on Android

    ...Built in Java and licensed under the AGPL-3.0 license, this server software handles protocols for delivering encrypted messages, synchronizing user metadata like public keys and push tokens, and providing REST and service APIs for the client apps to interact with. Although cryptographic operations and message confidentiality are managed by the client side using the Signal Protocol, the server ensures message routing, user registration, and group updates without having access to the decrypted contents. Its codebase is public to ensure transparency and auditability for a security-focused community willing to inspect how message metadata and delivery mechanisms are implemented.
    Downloads: 3 This Week
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  • 15
    JediTerm

    JediTerm

    Pure Java Terminal Emulator. Works with SSH and PTY

    JediTerm is JetBrains’ pure Java terminal emulator library built for embedding terminal functionality inside IDEs and desktop tools. Its main purpose is to provide a reusable terminal widget rather than a full standalone terminal product. It supports terminal sessions over SSH as well as local PTY sessions on macOS, Linux, and Windows. The library is used across JetBrains IDEs, including IntelliJ IDEA, PyCharm, WebStorm, PhpStorm, CLion, AppCode, and Rider. JediTerm handles terminal...
    Downloads: 1 This Week
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  • 16
    Retrofit

    Retrofit

    Type-safe HTTP client for Android and Java by Square

    ...It allows developers to define REST API calls using simple interface annotations, automatically converting responses into Java objects using converters like Gson or Moshi. Retrofit greatly simplifies network requests by abstracting away boilerplate code, making API integration in mobile and Java apps seamless and maintainable.
    Downloads: 0 This Week
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  • 17
    Grimmory

    Grimmory

    Grimmory is the successor of booklore

    Grimmory is a self-hosted digital library management platform designed to help users organize, read, and manage their entire book collection in a centralized and fully controlled environment. As the successor to Booklore, it expands on the idea of personal knowledge ownership by allowing users to store and interact with books without relying on third-party cloud services. The platform supports a wide range of formats, including eBooks, PDFs, comics, and audiobooks, making it versatile for...
    Downloads: 1 This Week
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  • 18
    OkBuck

    OkBuck

    OkBuck is a gradle plugin that lets developers build systems

    OkBuck is a gradle plugin that lets developers utilize the Buck build system on a gradle project. OkBuck is under active development. Most common features used for building and testing android apps with the Android Gradle Plugin have support available for Buck. Please open issues for new features/bugs. buckWrapper will create a buck wrapper script and various configuration files to invoke buck commands. okbuck will generate BUCK files. To speed up your builds even more, you can use an implementation of Buck's HTTP Cache API to take advantage of building once and using the same build artifacts on all machines.
    Downloads: 0 This Week
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  • 19
    Web3j

    Web3j

    Lightweight Java and Android library for integration with Ethereum

    ...Web3j provides full type-safe access to your blockchain applications. Plugins for leading build tools to simplify the developer experience. Create projects to work with new or import existing decentralized apps in a single command with the Web3j CLI. Simple to use framework for automated integration testing against networks within your IDE. Web3j is 100% open source and maintained by Web3 Labs.
    Downloads: 0 This Week
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  • 20

    Material Components for Android

    Modular and customizable Material Design UI components for Android

    ...Developed by a core team of engineers and UX designers at Google, Material Components enable developers to achieve a more reliable development workflow for building exceptional and highly functional apps. Material Components for Android is a drop-in replacement for Android's Design Support Library, offering tried and trusted Material Design guidelines and components.
    Downloads: 0 This Week
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  • 21
    RuoYi AI

    RuoYi AI

    Enterprise AI platform for building, deploying, and managing apps

    RuoYi AI is a full-stack enterprise-oriented AI development platform designed to help developers rapidly build, deploy, and manage intelligent applications using modern large language models and AI ecosystems. It provides a unified framework for integrating multiple AI models from different providers, allowing teams to switch or combine models through a consistent interface without vendor lock-in. RuoYi AI includes built-in support for retrieval-augmented generation, enabling organizations...
    Downloads: 2 This Week
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  • 22
    picocli

    picocli

    Framework for building GraalVM-enabled command line apps

    Picocli is a one-file framework for creating Java command-line applications with almost zero code. It supports a variety of command-line syntax styles including POSIX, GNU, MS-DOS and more. It generates highly customizable usage help messages that use ANSI colors and styles to contrast important elements and reduce the cognitive load on the user. Picocli-based applications can have command line TAB completion showing available options, option parameters, and subcommands, for any level of...
    Downloads: 2 This Week
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  • 23
    bitcoinj

    bitcoinj

    A library for working with Bitcoin

    bitcoinj is a library for working with the Bitcoin protocol. It can maintain a wallet, send/receive transactions without needing a local copy of Bitcoin Core and has many other advanced features. It's implemented in Java but can be used from any JVM compatible language, examples in Python and JavaScript are included. Highly optimized lightweight simplified payment verification (SPV) mode. In this mode, only a small part of the blockchain is downloaded, making bitcoin suitable for usage on...
    Downloads: 2 This Week
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  • 24
    Docusign eSignature Java Client

    Docusign eSignature Java Client

    Docusign Java Client Library used to interact with the eSignature API

    The Docusign SDK makes integrating Docusign into your apps and websites a seamless experience. Integrate eSignatures into your application in minutes. The secure and award-winning Docusign eSignature API makes requesting signatures, automating forms, and tracking documents directly from your app easy. This client SDK is provided as open source, which enables you to customize its functionality to suit your particular use case.
    Downloads: 0 This Week
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  • 25
    RuoYi Cloud

    RuoYi Cloud

    Java development platform built for distributed microservice apps

    RuoYi-Cloud is an open-source Java rapid-development platform built for distributed microservice applications. It separates the frontend from a Spring Boot, Spring Cloud, and Spring Cloud Alibaba backend. Nacos provides service registration and configuration, Redis supports authentication, Sentinel handles traffic control, and Seata manages distributed transactions. The project includes gateway, authentication, system, code-generation, job, file, and monitoring modules. It supports multiple...
    Downloads: 0 This Week
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