Open Source Kotlin Software - Page 4

Kotlin Software

Kotlin Clear Filters

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.

  • Earn up to 15% annual interest with Nexo. Icon
    Earn up to 15% annual interest with Nexo.

    More flexibility. More control.

    Generate interest, access liquidity without selling, and execute trades seamlessly. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • Earn up to 15% annual interest with Nexo. Icon
    Earn up to 15% annual interest with Nexo.

    Access competitive interest rates on your digital assets.

    Generate interest, borrow against your crypto, and trade a range of cryptocurrencies — all in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 1
    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: 15 This Week
    Last Update:
    See Project
  • 2
    Kuroba Experimental

    Kuroba Experimental

    Free and open source image board browser

    KurobaEx is a fast Android app for browsing imageboards, such as 4chan and 8chan. It's a fork of Kuroba. Ability to attach multiple media files to reply, attach media files that were shared by external apps (even by some keyboards), attach remote media files by URL, etc. New image downloader. Allows downloading images while the app is in the background, retrying failed to download images, resolving duplicates, etc.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 3
    Meshenger

    Meshenger

    P2P Voice/Video phone App for local networks

    Meshenger is an open-source, serverless P2P voice and video calling app for Android that works over local networks or directly between devices without the internet. It facilitates direct communication using QR codes or IP addresses, bypassing the need for any central infrastructure or account registration. Meshenger is particularly suited for emergency scenarios, privacy-focused users, and mesh networks where conventional communication tools fail. It emphasizes minimalism, transparency, and full decentralization.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 4
    Next Player

    Next Player

    An Android native video player

    Next Player is an Android native video player written in Kotlin. It provides a simple and easy-to-use interface for users to play videos on their Android devices.
    Downloads: 14 This Week
    Last Update:
    See Project
  • Infoflo CRM Software Icon
    Infoflo CRM Software

    Focus less on your CRM and more on your business

    Infoflo is an easy to use CRM that is perfect for managing customer relationships and includes the most robust Outlook sync on the market! It is a fully integrated contact, relationship, email, calendar, document, sales, task management solution and VoIP. It includes a Quick Books, Outlook and Google Sync.
    Free Trial
  • 5
    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ. You can support the development by sponsoring the plugin on Github. Supporting the plugin with crypto through the Gitcoin grant. Please attach the screenshot for every issue if possible. It will make the issue much clearer and easier to understand.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 6
    my-tv-0

    my-tv-0

    My TV·〇 TV video playback device can customize the TV source

    my-tv-0 is an open-source television streaming application that allows users to play video content from customizable sources, offering a flexible alternative to traditional IPTV solutions. The software supports multiple configuration formats, enabling users to define their own channel lists and video streams using files such as M3U, JSON, or TXT. It is designed to run on Android-based devices, including TV boxes and smart TVs, providing a simple interface for browsing and switching between channels. The application emphasizes user control, allowing remote configuration through QR codes or local network endpoints, which simplifies setup and management. It also includes features such as favorites, channel grouping, and automatic updates of video sources upon startup. The system supports local and remote video sources, making it adaptable for both personal media libraries and live streaming setups.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 7
    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: 75 This Week
    Last Update:
    See Project
  • 8
    Dicio assistant

    Dicio assistant

    Dicio assistant app for Android

    Dicio is a free and open source voice assistant for Android that focuses on strong privacy by running its understanding and response generation directly on the device whenever possible. It supports multiple input and output methods, including hotword-based voice input using the Vosk speech-to-text engine and a graphical interface for users who prefer to tap instead of talk. The assistant is built around a flexible “skills” system that lets it respond to a wide variety of requests such as search, weather, navigation, calculator, timers, media control, and more. It offers rich multilingual support and is already available in a wide range of languages including English, Spanish, German, French, Italian, Russian, and others. The project integrates tightly with a custom “sentences language” and compiler so each language can define its own natural phrasings to trigger skills without sacrificing accuracy.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 9
    Fossify Gallery

    Fossify Gallery

    Browse memories without interruptions with photo and video galleries

    Unleash memories, not personal data. Fossify Gallery is the ultimate photo and video app that's as powerful as it is private. No ads, no unnecessary permissions – just a seamless experience tailored for you. Enhance your photos with our basic yet powerful photo editor. Crop, resize, rotate, flip, draw, and apply stunning filters, all without compromising your privacy. Take control of your memories like never before. Your privacy matters. Ditch the data-hungry giants. Fossify Gallery puts you in control. Strip away EXIF metadata like GPS coordinates and camera details, keeping your memories yours, and yours alone. Lock down your memories with pin, pattern, or fingerprint protection. Secure specific photos, videos, or the entire app – you decide who gets access. Peace of mind, is guaranteed.
    Downloads: 12 This Week
    Last Update:
    See Project
  • MaintainX is the world-leading mobile-first workflow management platform for industrial and frontline workers. Icon
    MaintainX is the world-leading mobile-first workflow management platform for industrial and frontline workers.

    Trusted by Operational Leaders Across the Globe

    Your day-to-day maintenance tasks, simplified. MaintainX eliminates the paperwork, so you can spend less time on your clipboard and more time getting things done.
    Learn More
  • 10
    QKSMS

    QKSMS

    A beautiful SMS messenger for Android

    Fall in love with texting all over again with QKSMS! QKSMS is a beautiful, simple and customizable open source replacement to the stock messaging app on Android. It's got a clean, clutter-free intuitive design that lets you focus on what matters, plus millions of colors to choose from to make the theme of the entire app truly your own. QKSMS has some powerful features, including photo sharing, group chat, conversation blocking, message backup and restore and more. It's got everything you need from a text messaging app, plus all the fun features that make for a great text messaging experience. Simply put, QKSMS makes texting magical again, just the way it should be!
    Downloads: 12 This Week
    Last Update:
    See Project
  • 11
    Session for Android

    Session for Android

    A Decentralized, Onion Routed, Private Messenger

    Session Android is the official mobile client for Session, a privacy-first messaging protocol that enables secure, anonymous messaging without requiring phone numbers, email addresses, or centralized user accounts. Built natively for Android, the app lets users send and receive end-to-end encrypted text messages, voice notes, images, and attachments in both one-on-one and group chats, all while routing data through a decentralized onion-routing network designed to protect not just message content but also metadata like sender ID, timing, and network location. The Android client integrates seamlessly with Android’s notification system and background services so that you can stay connected without exposing your identity or compromising privacy, and it supports features such as message reactions, search within chats, profile and contact management, and local message storage encrypted at rest.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 12
    Fcitx5 Android

    Fcitx5 Android

    Fcitx5 input method framework and engines ported to Android

    fcitx5‑android is an Android port of the fcitx5 input method framework (originally for Linux). It brings features of desktop IME—like pinyin, table-based input, and plugin support—to Android devices. APKs are available via GitHub, F‑Droid, and Google Play.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 13
    Jellyfin Android

    Jellyfin Android

    Android Client for Jellyfin

    Jellyfin Mobile is an Android app that connects to Jellyfin instances and integrates with the official web client. We welcome all contributions and pull requests! If you have a larger feature in mind please open an issue so we can discuss the implementation before you start. Even though the client is only a web wrapper there are still lots of improvements and bug fixes that can be accomplished with Android and Kotlin knowledge.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 14
    Kitsunebi

    Kitsunebi

    A fully-featured V2Ray client for Android

    A fully-featured V2Ray client for Android. The Core used by Kitsunebi extends the function of v2ray-core, and adds a strategy of selecting the fastest node according to the node delay value. You can add a node group on the graphical interface to enable it. If you use custom configuration, there are several configuration items, except for tolerance. The delay test is not ICMP Ping or TCP Ping, the method used is roughly the same as that used by the latency strategy in load balancing, actually sends a proxy request to outbound, and records the time it takes to return non-null data. The delay test is also equivalent to the availability or connectivity test. As long as the delay can be measured, it means that the node is available. If it cannot be measured or times out, the availability is unknown.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 15
    Klick'r

    Klick'r

    An open-source auto clicker on images for Android

    Klick'r is an open-source Android application designed to automate repetitive tasks effortlessly. Formerly known as Smart AutoClicker, Klick'r offers unique image detection capabilities alongside traditional auto-clicking functionalities, providing a versatile solution for all your automation needs. Whether you’re a gamer automating in-game actions, a tester simulating user interactions, or anyone performing repetitive clicking tasks, Klick'r offers both image detection for sophisticated automation and a Regular Mode for straightforward auto-clicking.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 16
    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: 11 This Week
    Last Update:
    See Project
  • 17
    OpenCalc

    OpenCalc

    A simple and beautiful calculator for Android

    A simple and beautiful calculator for Android.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 18
    Gradle Play Publisher

    Gradle Play Publisher

    GPP is Android's unofficial release automation Gradle Plugin

    Gradle Play Publisher (GPP) is Android's unofficial release automation Gradle Plugin. It can do anything from building, uploading, and then promoting your App Bundle or APK to publishing app listings and other metadata. The first APK or App Bundle needs to be uploaded via the Google Play Console because registering the app with the Play Store cannot be done using the Play Developer API. For all subsequent uploads and changes, GPP may be used. To successfully upload apps to the Play Store, they must be signed with your developer key. Make sure you have a valid signing configuration. After you've gone through the Service Account setup, you should have a JSON file with your private key. GPP supports uploading both the App Bundle and APK. Once uploaded, GPP also supports promoting those artifacts to different tracks.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 19
    Gramophone

    Gramophone

    A sane music player built with media3 and material design library

    A sane media3-based Material3 music player that follows Android standards. Gramophone is a sane music player built with media3 and a material design library that follows android's standards strictly.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 20
    LibreTube

    LibreTube

    An alternative frontend for YouTube, for Android

    YouTube has an extremely invasive privacy policy that relies on using user data in unethical ways. They store a lot of your personal data - ranging from ideas, music taste, content, political opinions, and much more than you think. This project is aimed at improving the users' privacy by being independent from Google and bypassing their data collection. Therefore, the app is using the Piped API, which uses proxies to circumvent Google's data collection and includes some other additional features.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 21
    Thunderbird for Android

    Thunderbird for Android

    Open Source Email App for Android (fka K-9 Mail)

    Thunderbird Android is the mobile counterpart of the popular Thunderbird email client, reimagined for Android phones and tablets so users can access, send, and organize email from multiple accounts with advanced features found in desktop clients. It embraces modern mobile UI design while supporting robust email protocols (IMAP/POP3) and standards like OAuth for secure logins to services such as Gmail, Outlook, or custom mail providers. The app is built to handle complex mailbox structures, threaded discussions, rich text and HTML content, attachments, and account synchronizations reliably even on cellular connections. With features like unified inboxes, background fetch, push notifications, and configurable swipe actions, Thunderbird Android aims to bring the power and flexibility of the desktop experience to your pocket. It also integrates search, filtering, and tagging capabilities that help users stay organized when managing large volumes of mail.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 22
    Trail Sense

    Trail Sense

    Android app using phone's sensors to assist with survival situations

    Designed for hiking, backpacking, camping, and geocaching. Trail Sense is a tool, and just like any other tool that you bring into the wilderness, it's essential to have backup equipment and skills.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 23
    Audio Share

    Audio Share

    Audio Share can share Windows/Linux computer's audio to Android phone

    Audio Share can share Windows/Linux computer's audio to Android phone over network, so your phone becomes the speaker of computer. (You needn't buy a new speaker😄.) https://github.com/mkckr0/audio-share
    Leader badge
    Downloads: 264 This Week
    Last Update:
    See Project
  • 24
    AndBible

    AndBible

    AndBible: Bible Study

    AndBible: Bible Study" is a powerful, yet easy to use, offline Bible study application for Android. The app does not aim to be simply a Bible reader, but focuses on being an advanced tool to do in-depth personal Bible study. This application is developed by Bible readers, for Bible readers. It aims at helping you make your Bible study convenient, deep and fun. The best part about this non-profit community project is that it is open-source, completely free, and contains no advertisements. A few popular Bible versions (of the many available) are KJV, NASB, NET, and also popular commentaries like Matthew Henry and John Gill.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 25
    Binary Eye

    Binary Eye

    Yet another barcode scanner for Android

    Binary Eye is an open-source, ad-free barcode and QR code scanning application for Android that emphasizes simplicity, broad format support, and user privacy by not storing or sending scanned data off the device. The app, inspired by the Zebra Crossing (ZXing) scanning library, supports a wide range of barcode formats such as QR Code, EAN, UPC, PDF417, Data Matrix, and more, and also offers barcode generation capabilities built into the same interface. BinaryEye works in both portrait and landscape orientations with a modern Material Design interface, making it intuitive to scan or create codes easily on nearly any Android device. Because it is open source under the MIT license, developers and users can inspect or extend the codebase, and the project doesn’t include ads, trackers, or unnecessary permissions, focusing on utility and user freedom.
    Downloads: 9 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB