Open Source Kotlin Software - Page 3

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Browse free open source Kotlin Software and projects below. Use the toggles on the left to filter open source Kotlin Software by OS, license, language, programming language, and project status.

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  • 1
    USB Gadget Tool

    USB Gadget Tool

    Convert your Android phone to any USB device you like

    Convert your Android phone to any USB device you like. USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. Connected USB hosts (e.g. a normal computer) will then identify your Android device only under that role. It can also be used to deactivate the standard USB Gadget (including mtp, adb, etc.), e.g. for security reasons.
    Downloads: 27 This Week
    Last Update:
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  • 2
    AVNC

    AVNC

    VNC Client for Android

    Fast & Secure VNC client for Android. AVNC is an open source VNC client for Android. It allows you to remotely control any device running a VNC server.
    Downloads: 26 This Week
    Last Update:
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  • 3
    Animeko

    Animeko

    100% Kotlin/Compose Multiplatform

    Animeko is an open-source anime streaming app for Android, offering a modern and community-driven alternative for watching anime. It aggregates content from various public sources and supports multiple features to enhance the viewing experience, including subtitles, episode tracking, and source customization.
    Downloads: 26 This Week
    Last Update:
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  • 4
    ChatGPT Android

    ChatGPT Android

    ChatGPT Android demonstrates OpenAI's ChatGPT on Android

    ChatGPT Android demonstrates OpenAI's ChatGPT on Android with Stream Chat SDK for Compose.
    Downloads: 26 This Week
    Last Update:
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    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

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  • 5
    Unciv

    Unciv

    Open-source Android/Desktop remake of Civ V

    Unciv is an open-source reimplementation of the game Civilization V in Java using LibGDX. It focuses on replicating the core gameplay mechanics in a lightweight, mobile- and desktop-friendly format, supporting both single-player and multiplayer modes. Unciv uses a minimalist art style and text-based UI to deliver a fast, turn-based strategy experience.
    Downloads: 26 This Week
    Last Update:
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  • 6
    Aniyomi

    Aniyomi

    An app for manga and anime

    Aniyomi is an anime and manga streaming app for Android based on Tachiyomi, extending its functionality to include anime streaming alongside manga reading. It supports various sources through extensions, download capabilities, episode tracking via services like MyAnimeList and AniList, and a rich set of customization options.
    Downloads: 25 This Week
    Last Update:
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  • 7
    EinkBro

    EinkBro

    A small, fast web browser based on Android WebView

    EinkBro is designed to fit Eink devices' needs; no unnecessary UI transitions and animations, clear B&W icons, and useful features for Eink reading experience. It's originated from FOSS Browser, which is a fully free/libre (as in freedom) Android app.
    Downloads: 25 This Week
    Last Update:
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  • 8
    SimpleX

    SimpleX

    The first messaging platform operating without user identifiers

    Other apps have user IDs: Signal, Matrix, Session, Briar, Jami, Cwtch, etc. SimpleX does not, not even random numbers. This radically improves your privacy. The video shows how you connect to your friend via their 1-time QR-code, in person or via a video link. You can also connect by sharing an invitation link. Temporary anonymous pairwise identifiers SimpleX uses temporary anonymous pairwise addresses and credentials for each user contact or group member. It allows to deliver messages without user profile identifiers, providing better meta-data privacy than alternatives. Many communication platforms are vulnerable to MITM attacks by servers or network providers. To prevent it SimpleX apps pass one-time keys out-of-band when you share an address as a link or a QR code. Double-ratchet protocol. OTR messaging with perfect forward secrecy and break-in recovery. NaCL cryptobox in each queue to prevent traffic correlation between message queues if TLS is compromised.
    Downloads: 25 This Week
    Last Update:
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  • 9
    JByteMod-Beta

    JByteMod-Beta

    Java bytecode editor

    JByteMod is a multifunctional bytecode editor with syntax highlighting and live decompiling and method graphing.
    Downloads: 24 This Week
    Last Update:
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  • 10
    Spowlo

    Spowlo

    A Spotify songs downloader for Android made with Jetpack Compose

    A Spotify songs downloader powered by spotDL made with Jetpack Compose and Material You.
    Downloads: 24 This Week
    Last Update:
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  • 11
    Element X Android

    Element X Android

    Android Matrix messenger application using the Matrix Rust SDK

    Element X Android is a modern, reimagined Matrix-protocol client designed for Android that provides secure, decentralized communication with a focus on performance, polished UI, and extensibility. Built as the successor to earlier Matrix clients, Element X blends fast native Android development with a feature-rich experience that supports end-to-end encrypted messaging, voice and video calls, threaded conversations, and file sharing across federated Matrix servers. Unlike proprietary messaging apps, Element X connects to any compliant Matrix server, letting individuals host their own or join communities without centralized control, while still benefiting from robust cryptographic protections that ensure only intended recipients can read conversations. The app’s UI emphasizes responsiveness and ease of use with modern navigation patterns, customizable themes, and intuitive controls for group chats and spaces (Matrix’s equivalent of servers or room collections).
    Downloads: 23 This Week
    Last Update:
    See Project
  • 12
    Image Toolbox

    Image Toolbox

    Image Toolbox is an powerful picture editor, which can crop

    Image Toolbox is a powerful picture editor, which can crop, apply filters, add some drawings, erase background, edit EXIF, or even create a PDF file.
    Downloads: 21 This Week
    Last Update:
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  • 13
    Gallery Android

    Gallery Android

    Light-weight Media Gallery app for Android made with Jetpack Compose

    An Android Gallery app built with Jetpack Compose. The goal of this project is to create and bring the Gallery app everyone wants, with the features everyone needs.
    Downloads: 20 This Week
    Last Update:
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  • 14
    Komikku

    Komikku

    Free and open source manga reader for Android

    Komikku is an open-source manga reader application designed for Linux-based systems, providing a modern and customizable interface for reading manga from various online sources. It integrates with multiple content providers through a modular extension system, allowing users to browse, search, and read manga within a single application. The app supports both online reading and offline downloads, enabling flexible access to content depending on user preferences. It features a clean and intuitive interface optimized for desktop environments, including support for keyboard navigation and customizable reading modes. Komikku also includes library management tools that allow users to organize collections, track progress, and manage updates. The project is actively maintained, with regular updates improving compatibility and adding new features.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 15
    Look4Sat

    Look4Sat

    Open-source satellite tracker and pass predictor for Android

    Track satellite passes with ease. Thanks to the huge database provided by Celestrak and SatNOGS you have access to more than 5000 active satellites orbiting Earth. You can search the entire DB by satellite name or by NORAD catnum. Satellite positions and passes are calculated relative to your location. To get reliable info make sure to set the observation position using GPS or QTH Locator in the Settings menu. The application is built using Kotlin, Coroutines, Architecture Components and Jetpack Navigation. It is now and always will be completely ad-free and open-source.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 16
    Operit AI

    Operit AI

    Powerful Android AI agent with tools, automation, and Linux shell

    Operit is a full-featured AI assistant and agent platform designed specifically for Android devices, aiming to go far beyond traditional chat-based interfaces. It integrates deep system-level capabilities with a wide range of tools, allowing the AI to perform real tasks such as file management, automation, and system control directly on the device. A standout aspect of the project is its built-in Ubuntu 24 environment, which enables users to run Linux commands, scripts, and development tools in a mobile context. Operit supports both local and remote AI models, including offline execution through frameworks like llama.cpp and MNN, helping preserve user privacy while maintaining flexibility. Operit also includes an intelligent memory system that stores, organizes, and retrieves user interactions to provide more personalized and context-aware responses. In addition, it offers workflow automation, plugin extensibility, & a rich tool ecosystem, making it suitable for advanced productivity.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 17
    Legado

    Legado

    Legado 3.0 Book Reader with powerful controls & full functions

    legado is a feature-rich open-source ebook reader for Android, focused on flexibility, extensibility, and customization. It supports local books, online book sources, and plugins for a personalized reading experience. With powerful configuration options, including layout settings, font control, and background customization, it’s ideal for avid readers looking for complete control over how they read digital content.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 18
    PlainApp

    PlainApp

    Open-source application that allows you to manage your phone

    PlainApp is an open-source application that allows you to manage your phone through a web browser. Access files, videos, music, contacts, sms, calls, and more from your desktop using a secure, easy-to-use web interface. We take your privacy seriously and use TLS + AES-GCM-256 encryption to ensure your data is secure. PlainApp has a modern, customizable interface with multi-language support, light/dark theme options. You can manage your phone from your desktop by visiting a self-hosted webpage wirelessly.
    Downloads: 19 This Week
    Last Update:
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  • 19
    Findroid

    Findroid

    Third-party native Jellyfin Android app

    Findroid is a third-party Android application for Jellyfin that provides a native user interface to browse and play movies and series.
    Downloads: 18 This Week
    Last Update:
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  • 20
    Biblia-java
    Aplicación para sistemas Windows y Android sin fines de lucro, con el propósito de fomentar el estudio bíblico libre. El uso del código del programa está permitido conforme a las siguientes reglas: https://github.com/baruc78pro/Biblia-de-estudio 1.-Prohibido el uso para robo o mal manejo de datos Queda estrictamente prohibido utilizar el código con fines de robo, extracción o uso indebido de datos. Todos los datos deben ser almacenados de manera forzosa y exclusivamente en local, sin conexión a servidores externos ni servicios de terceros. 2.-Uso exclusivo para el cristianismo evangélico Este software ha sido diseñado como una herramienta de apoyo para el estudio bíblico dentro del cristianismo evangélico. El uso del programa con fines católicos o vinculados a cualquier otra religión queda terminantemente prohibido(el catolicismo no se considera cristianismo). Malware Inc. podrá revocar el acceso, retirar el software e iniciar procedimientos legales si detecta un uso indebido
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    Downloads: 479 This Week
    Last Update:
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  • 21
    Octavi-OS

    Octavi-OS

    fast mirror online soon

    An AOSP based custom rom with new look and feel and massive customisations , contains everything you need .
    Downloads: 104 This Week
    Last Update:
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  • 22
    AnkiDroid

    AnkiDroid

    Anki flashcards on Android

    Anki flashcards on Android. Your secret trick to achieve superhuman information retention. A semi-official port of the open source Anki spaced repetition flashcard system to Android. Memorize anything with AnkiDroid.
    Downloads: 17 This Week
    Last Update:
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  • 23
    SuperImage

    SuperImage

    Sharpen your low-resolution pictures with the power of AI upscaling

    Sharpen your low-resolution pictures with the power of AI upscaling. SuperImage is a neural network-based image upscaling build with the MNN deep learning framework and the Real-ESRGAN algorithm. By leveraging the power of your device's GPU, SuperImage is able to upscale and restore the details of your images without uploading them to the internet, keeping your data secure. SuperImage is a neural network-based image upscaling application for Android built with the MNN deep learning framework and Real-ESRGAN. The input image is processed in tiles on the device GPU, using a pre-trained Real-ESRGAN model. The tiles are then merged into the final high-resolution image. This application requires Vulkan or OpenCL support and Android 7 or above.
    Downloads: 17 This Week
    Last Update:
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  • 24
    fanqiang

    fanqiang

    Over the Wall - Science Online

    Over the wall-Scientific Internet, over-the-wall tool, over-the-wall tutorial project library.
    Downloads: 17 This Week
    Last Update:
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  • 25
    Breezy Weather

    Breezy Weather

    A Material Design Weather Application

    Breezy Weather is a privacy-focused, open-source Android weather app with a clean and modern interface. It aggregates weather data from various providers while respecting user privacy, offering features like current conditions, forecasts, and weather widgets. The app is designed to be lightweight, customizable, and completely ad-free.
    Downloads: 16 This Week
    Last Update:
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