Showing 743 open source projects for "java web apps"

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  • 1
    Calibre-Web

    Calibre-Web

    Web app for browsing, reading and downloading eBooks stored in Calibre

    Calibre-Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database. User management with fine-grained per-user permissions. User Interface in Brazilian, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Khmer, Polish, Russian, simplified and traditional Chinese, Spanish, Swedish, Turkish, Ukrainian. Filter and search by titles, authors, tags, series and language. Support for editing eBook...
    Downloads: 20 This Week
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  • 2
    Navidrome

    Navidrome

    Your Personal Streaming Service

    ...Users can browse, play, and organize tracks and playlists via a modern web interface, plus they can control access for multiple users with individualized play counts, favorites, and library permissions. Navidrome also implements the Subsonic API, making it compatible with many third-party players and apps across different platforms. It automatically monitors and indexes your library for new content, supports on-the-fly transcoding to adapt audio streams to different network conditions.
    Downloads: 40 This Week
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  • 3
    PhotoEditor SDK

    PhotoEditor SDK

    PhotoEditor SDK: A fully customizable photo editor for your app

    The PESDK Android Demo is an example project showcasing how to integrate the PhotoEditor SDK (PESDK) into Android applications. PESDK is a powerful and customizable mobile photo editing framework developed by IMG.LY, enabling developers to add professional-grade photo editing capabilities to their apps. The demo illustrates features such as cropping, filtering, stickers, text overlays, adjustments, and more—all powered by a clean and user-friendly interface. It supports deep customization,...
    Downloads: 9 This Week
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  • 4
    Prowlarr

    Prowlarr

    Manager/proxy built on the popular *arr .net/reactjs base stack

    ...The project is built on a .NET backend with a React-based user interface, giving it a modern web experience and broad platform compatibility across Windows, macOS, Linux, and containers.
    Downloads: 22 This Week
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  • 5
    Stremio Core

    Stremio Core

    Types, addon system, UI models, core logic

    Stremio Core is the Rust engine that powers Stremio’s apps by centralizing all reusable logic behind discovery, catalogs, metadata, streams, add-ons, and user/library state. It exposes a clean set of modules—types, addon_transport, and state_types—so apps can talk to add-ons, model UI state, and react to events without duplicating code. The architecture is inspired by Elm: immutable state, message-driven updates, and explicit side-effects (“effects”) keep behavior predictable and testable. ...
    Downloads: 3 This Week
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  • 6
    Cesium

    Cesium

    An open-source JavaScript library for world-class 3D globes and maps

    CesiumJS is an open source JavaScript library for creating world-class 3D globes and maps with the best possible performance, precision, visual quality, and ease of use. Developers across industries, from aerospace to smart cities to drones, use CesiumJS to create interactive web apps for sharing dynamic geospatial data. Built on open formats, CesiumJS is designed for robust interoperability and scaling for massive datasets. CesiumJS is released under the Apache 2.0 license and is free for both commercial and non-commercial use. With more than 1,000,000 downloads, CesiumJS powers apps that reach millions of users. ...
    Downloads: 10 This Week
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  • 7
    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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  • 8
    gonic

    gonic

    music streaming server / free-software subsonic server API

    ...It is designed to index and stream personal audio collections, supporting various file formats and metadata structures while maintaining low resource usage. The server can scan local directories, organize music libraries, and expose them through a web interface or compatible third-party apps. It also supports podcast management, playlist handling, and integration with services like Last.fm for enhanced metadata and artist information. gonic emphasizes simplicity and performance, making it suitable for running on small servers or home setups. Its modular configuration allows users to customize transcoding, storage paths, and playback behavior. ...
    Downloads: 3 This Week
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  • 9
    Planetiler

    Planetiler

    Flexible tool to build planet-scale vector tilesets

    Planetiler (pla·nuh·tai·lr, formerly named "Flatmap") is a tool that generates Vector Tiles from geographic data sources like OpenStreetMap. 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...
    Downloads: 21 This Week
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  • 10
    FadCam

    FadCam

    Open-source, ad-free Android multimedia recorder with background video

    FadCam is an open-source Android multimedia recorder designed around privacy, customization, and ethical use. It started as a seamless background video recorder, but its scope now includes dashcam-style recording, screen recording, live streaming over local networks, and remote camera control. The app is ad-free and built for users who want practical recording tools without relying on commercial surveillance-style apps. It provides options for video quality, watermarks, internal storage,...
    Downloads: 7 This Week
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  • 11
    Dgrm.net

    Dgrm.net

    Flowchart editor

    Dgrm is a lightweight JavaScript library designed for creating interactive diagrams and visual representations directly within web applications. It provides developers with tools to build flowcharts, graphs, and structured visual layouts using a flexible and extensible API. The library focuses on simplicity, allowing users to define nodes, edges, and relationships without requiring complex setup or dependencies. It supports dynamic updates, enabling diagrams to respond to user interactions...
    Downloads: 0 This Week
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  • 12
    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. ...
    Downloads: 3 This Week
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  • 13
    Lottie

    Lottie

    Render After Effects animations natively on Mobile, Web & React Native

    Lottie is a wonderful library for Android, iOS, Web, and Windows that works by parsing Adobe After Effects animations that have been exported as json with Bodymovin, and then rendering these natively on mobile and on the web! Now you can have beautiful animations without engineers having to recreate everything by hand. Building animations by hand is time consuming, and other animation alternatives like Gifs and Png sequences don’t offer the same flexibility and varied features that...
    Downloads: 5 This Week
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  • 14
    FXGL

    FXGL

    Java/JavaFX/Kotlin Game Library (Engine)

    No installation or setup required. "Out of the box": Java 8-17, Win/Mac/Linux/Android 8+/iOS 11.0+/Web. Simple and clean API, higher level than other engines. Superset of JavaFX, no need to learn new UI API. Real-world game development techniques, entity-component, interpolated animations, particles, and many more. Games are easily packaged into a single executable .jar or native images.
    Downloads: 3 This Week
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  • 15
    Search by Image

    Search by Image

    Browser extension for reverse image search, available for Chrome

    Search by Image is a powerful browser extension for Safari that makes effortless reverse image searches possible, and comes with support for more than 30 search engines, such as Google, Bing, Yandex, Baidu and TinEye. Search by Image is an open source project made possible thanks to a community of awesome supporters. By purchasing the extension on the Mac App Store, you help support the continued development of the extension. The extension helps journalists and researchers verify the...
    Downloads: 7 This Week
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  • 16
    Jellyfin

    Jellyfin

    The Free Software Media System

    ...Run the Jellyfin server on your system and gain access to the leading free-software entertainment system, bells and whistles included. Hold your entire movie collection, with a beautiful collection of posters. Jellyfin lets you watch your media from a web browser on your computer, apps on your Roku, Android, iOS (including AirPlay), Android TV, or Fire TV device, or via your Chromecast or existing Kodi installation. Jellyfin has no tracking, phone-home, or central servers collecting your data. We believe in keeping our software open and transparent, and anything we might collect (crash logs, etc.) is opt-in only. ...
    Downloads: 11 This Week
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  • 17
    GSYVideoPlayer

    GSYVideoPlayer

    Android video player library

    GSYVideoPlayer is a flexible, feature-rich video playback library for Android that wraps popular media engines to offer a unified, customizable API. It supports full-screen playback, small-window (picture-in-picture–style) modes, and seamless orientation changes with proper lifecycle handling. The library provides gesture controls for brightness, volume, and seeking, along with thumbnail covers, playback speed adjustment, and caching options for smoother viewing on unreliable networks....
    Downloads: 3 This Week
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  • 18
    MusicPlayer2

    MusicPlayer2

    Audio player that can play common audio formats

    ...As an open-source repo, it allows modification — for example customizing UI, hooking up additional features (equalizer, library scanning), or integrating with other apps.
    Downloads: 9 This Week
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  • 19
    Coil

    Coil

    Image loading for Android backed by Kotlin Coroutines

    An image loading library for Android backed by Kotlin Coroutines. Coil performs a number of optimizations including memory and disk caching, downsampling the image in memory, re-using bitmaps, automatically pausing/cancelling requests, and more. Coil adds ~2000 methods to your APK (for apps that already use OkHttp and Coroutines), which is comparable to Picasso and significantly less than Glide and Fresco. Coil's API leverages Kotlin's language features for simplicity and minimal...
    Downloads: 1 This Week
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  • 20
    Kodi

    Kodi

    Home theater software and entertainment hub for digital media

    Kodi is an award-winning free and open source home theater/media center software and entertainment hub for digital media. With its beautiful interface and powerful skinning engine, it's available for Android, BSD, Linux, macOS, iOS and Windows. Got a smart TV? You ain't seen nothin’ yet! Kodi puts your smart TV to shame. Kodi runs on a huge range of devices and operating systems. Your music collection has never looked this good! Support for almost every format, playlists, party mixes and...
    Downloads: 14 This Week
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  • 21
    Wireflow

    Wireflow

    User flow chart real-time collaborative tool

    Wireflow is an open-source collaborative tool for designing and visualizing user experience flows and wireframes directly in the browser, aimed at UX designers, product managers, and developers who need to map out interactive user journeys without heavy graphic design tools. Unlike static flowchart apps, Wireflow’s interface focuses on quick and intuitive creation of flow diagrams that represent screens and transitions, helping teams prototype and iterate on navigation logic and interaction...
    Downloads: 1 This Week
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  • 22
    Spring Cloud Netflix

    Spring Cloud Netflix

    Integration with Netflix OSS components

    This project provides Netflix OSS integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with battle-tested Netflix components. The patterns provided include Service Discovery (Eureka), Circuit Breaker (Hystrix), Intelligent Routing (Zuul) and Client Side Load...
    Downloads: 0 This Week
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  • 23
    uCrop

    uCrop

    Image cropping library for Android

    We develop lots of different Android apps at Yalantis, and our experience shows that almost every application we deal with needs image cropping functionality. Image cropping can be used for various purposes, from ordinary adjustment of user profile images to more complex features that involve aspect ratio cropping and flexible image transformations. Since we want to provide all our customers with the best set of tools for image editing functionality, we decided to create uCrop, an image...
    Downloads: 1 This Week
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  • 24
    dcm4che is an implementation of DICOM and IHE actors in Java. Homepage: http://www.dcm4che.org, Google Group: http://groups.google.com/group/dcm4che?hl=en, Wiki: http://www.dcm4che.org/confluence, Issue Tracking: http://www.dcm4che.org/jira
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    Downloads: 1,464 This Week
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  • 25
    GeoTools, the Java GIS toolkit

    GeoTools, the Java GIS toolkit

    Toolkit for working with and mapping geospatial data

    GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data. GeoTools is an Open Source Geospatial Foundation project. The GeoTools library data structures are based on Open Geospatial Consortium (OGC) specifications.
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    Downloads: 392 This Week
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