Kotlin open-source

Open-source Kotlin projects categorized as open-source

Top 23 Kotlin open-source Projects

  • FlorisBoard

    An open-source keyboard for Android which respects your privacy. Currently in early-beta.

    Project mention: All my Open Source App Alternatives | /r/opensource | 2023-07-30

    Keyboard → OpenBoard (OpenBoard Upadted Fork, FlorisBoard when the v4 will be released...)

  • Simple-Calendar

    A simple calendar with events, tasks, customizable colors, widgets and no ads.

    Project mention: Unity’s New Pricing: A Wake-Up Call on the Importance of Open Source in Gaming | news.ycombinator.com | 2023-09-15

    Simple mobile tools shows its definitely possible [0]. Simple gallery pro has 110k reviews, for example.

    >You have a better chance of winning a lottery, happens every day.

    Agreed here, though.

    [0] https://www.simplemobiletools.com/

  • Appwrite

    Appwrite - The open-source backend cloud platform. The open-source backend cloud platform for developing Web, Mobile, and Flutter applications. You can set up your backend faster with real-time APIs for authentication, databases, file storage, cloud functions, and much more!

  • apkupdater

    APKUpdater is an open source tool that simplifies the process of finding updates for your installed apps.

    Project mention: Aptoide TV Needs an Update | /r/AndroidTV | 2023-03-24
  • rethink-app

    DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

    Project mention: Widget / Notification Action for Universal Lockdown | /r/rethinkdns | 2023-07-08

    Noted. Thanks.

  • ridesharing-uber-lyft-app

    Ride-Sharing Uber Lyft Android App - Learn to build a ride-sharing Android Taxi Clone App like Uber, Lyft - Open-Source Project

    Project mention: Existing rideshare support app suggestions | /r/rideshare | 2023-01-01
  • android_dbinspector

    Android library for viewing, editing and sharing in app databases.

  • Mergify

    Tired of breaking your main and manually rebasing outdated pull requests?. Managing outdated pull requests is time-consuming. Mergify's Merge Queue automates your pull request management & merging. It's fully integrated to GitHub & coordinated with any CI. Start focusing on code. Try Mergify for free.

  • Simple-Notes

    A simple textfield for adding quick notes without ads.

  • android-app

    The Android app for Noice. (by trynoice)

    Project mention: NewPipe 0.25.0 and 25.1 released | /r/fossdroid | 2023-04-10

    What is noice ? This app?

  • fakeit

    The Kotlin fake data generator library! (by moove-it)

  • talk-android

    📱😀 Video & audio calls through Nextcloud on Android

  • Simple-App-Launcher

    A simple holder for favourite apps for quick & easy app launcher icon management

  • Simple-Flashlight

    A simple modern flashlight with SOS, stroboscope & bright display, has no ads.

  • kstatemachine

    KStateMachine is a Kotlin DSL library for creating state machines and hierarchical state machines (statecharts).

    Project mention: Dart 3 | news.ycombinator.com | 2023-05-10

    Kotlin has some pretty nice StateMachine DSL libraries out there, like https://github.com/nsk90/kstatemachine

  • Cofi

    Free and open-source coffee brew timer. Customizable time settings and an easy-to-use interface. Perfect cup every time.

    Project mention: Cofi - Coffee Brew Timer | /r/fossdroid | 2023-06-10

    You can get Cofi from the Play Store, F-Droid, or GitHub

  • Quantitizer

    :sparkles: A quantity stepper for android projects

  • retrowars

    Play retro games against each other in any combination in this open source Android multiplayer game.

    Project mention: Tetris? | /r/fossdroid | 2023-04-05
  • OlauncherCF

    Olauncher CF. Simple and Clutter Free Android launcher

    Project mention: Ask HN: Any privacy-preserving minimalist phone launchers for Android? | news.ycombinator.com | 2023-05-29

    There's also a fork called Olauncher Clutter Free, which I prefer because of the added features.


  • common-voice-android

    Repository of "CV Project" app. It's an unofficial app for Mozilla Common Voice, which permits you to contribute to this project via your device.

  • timer-machine-android

    ⏲ A highly customizable interval timer app for Android

    Project mention: HIIT Timer Apps | /r/fossdroid | 2023-01-09

    TimeR Machine or HIIT depending on what you want. Otherwise, just type hiit in the search bar of a F-Droid client (and add IzzyOnDroid repo to have access to more FOSS apps).

  • jetpack_compose_country_code_picker

    Jetpack Compose Country Code Picker

    Project mention: Android Jetpack Compose Country Code Picker | /r/androidapps | 2022-11-20
  • Tasky

    Tasky is a highly intuitive and easy-to-use todo list application designed for those who seek a powerful yet minimalistic way to manage their daily tasks. (by thatsmanmeet)

    Project mention: ⟳ 2 apps added, 13 updated at apt.izzysoft.de | /r/FDroidUpdates | 2023-03-27

    Tasky: Tasky is a simple task management tool to organize your ToDo lists.

  • kfsm

    Finite State Machine in Kotlin

    Project mention: Testing Framework | /r/Kotlin | 2023-07-03

    I built a DSL to make it easier to built a finite state machine: https://github.com/open-jumpco/kfsm https://open.jumpco.io/projects/kfsm/index.html

  • InfluxDB

    Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-09-15.

Kotlin open-source related posts


What are some of the best open-source open-source projects in Kotlin? This list will help you:

Project Stars
1 FlorisBoard 4,485
2 Simple-Calendar 3,344
3 Simple-Gallery 3,226
4 apkupdater 1,781
5 rethink-app 1,760
6 ridesharing-uber-lyft-app 1,301
7 android_dbinspector 935
8 Simple-Notes 762
9 android-app 755
10 fakeit 529
11 talk-android 444
12 Simple-App-Launcher 382
13 Simple-Flashlight 332
14 kstatemachine 253
15 Cofi 246
16 Quantitizer 182
17 retrowars 136
18 OlauncherCF 135
19 common-voice-android 102
20 timer-machine-android 99
21 jetpack_compose_country_code_picker 91
22 Tasky 89
23 kfsm 85
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