explaingit

Popular Kotlin repositories on GitHub, each explained for non-coders — what it does, its tech stack, and how to run it.

• drakeet/multitypeMultiType is an Android library that makes it easy to build scrolling lists with many different visual styles.
• sagernet/sagernetAn Android app that routes internet traffic through a proxy to bypass censorship and access blocked content. S
• mockk/mockkTesting library for Kotlin that lets you create controlled fake versions of classes and interfaces to isolate
• kizitonwose/calendarAn Android calendar library for Kotlin developers that handles all display and selection logic while you contr
• tapadoo/alerterAlerter is an Android library that shows customizable notification banners sliding in from the top of the scre
• wxxsfxyzm/installerx-revivedAn Android app that replaces the default APK installer with more options, including split APK support, root-le
• firebase/firebaseui-androidA ready-made Android library from Google with drop-in UI components for Firebase sign-in, live database lists,
• simondankelmann/bluetooth-le-spamAn Android app that broadcasts fake Bluetooth Low Energy device advertisements, causing nearby iPhones and Win
• kotest/kotestA flexible testing framework for Kotlin that supports multiple ways to write tests, property-based testing wit
• hxh19950701/webviewtvliveAn Android app that loads live TV broadcasts from broadcaster websites directly inside the app using a browser
• samolego/cantaAn Android app that lets you uninstall pre-installed bloatware and system apps from your phone without root ac
• vremsoftwaredevelopment/wifianalyzerA free Android app that scans nearby Wi-Fi networks and shows their signal strength, channel usage, and conges
• aliucord/aliucordA mod platform for the older Android Discord app that lets you install community-made plugins and custom theme
• plainhub/plain-appA free, open-source Android app that turns your phone into a local server so you can browse files, read SMS, s
• mm2-0/kvaesitsoKvaesitso is a free, open-source Android home screen replacement built around search — type what you want inst
• lizongying/my-tv-0My TV is an Android TV app that plays IPTV live streams from a custom channel list you provide, letting you wa
• duckduckgo/androidThe official open-source Android app from DuckDuckGo, a privacy-focused browser and search engine, written in
• izhangzhihao/intellij-rainbow-bracketsRainbow Brackets colors matching bracket pairs in distinct hues inside JetBrains IDEs, making nested code much
• kittinunf/fuelFuel is a Kotlin HTTP library for Android and JVM apps that makes network requests readable and simple — add a
• neoapplications/neo-storeNeo Store is a modern Android app for browsing and installing free, open-source apps from F-Droid and 100+ com
• android/user-interface-samplesA collection of small Android app examples demonstrating specific UI features in Kotlin, though most samples h
• revanced/revanced-patches-templateAn official starting-point template for building and publishing your own collection of ReVanced patches — code
• aaswordman/operitAn Android AI assistant app that connects AI models to your phone's real capabilities: managing files, browsin
• moezbhatti/qksmsQKSMS is a clean, open-source Android SMS and MMS app that replaces the default messaging app with a Material
• streetcomplete/streetcompleteAn Android app that lets anyone improve the OpenStreetMap world map by answering simple questions about nearby
• intellij-rust/intellij-rustA now-deprecated community Rust plugin for JetBrains IDEs that added syntax highlighting, code completion, and
• rikkahub/rikkahubAn Android app that lets you chat with multiple AI services using your own API key, supporting text, images, P
• chuckerteam/chuckerA two-line-to-add Android debugging library that captures every network request and response your app makes an
• oxygencobalt/auxioAuxio is a free, open-source local music player for Android that plays audio files from your device — no inter
• rumboalla/apkupdaterAPKUpdater is a free Android app that checks for updates across multiple app sources at once — APKMirror, F-Dr
• kotlin/dokkaThe official documentation generator for Kotlin maintained by JetBrains. It reads comment blocks in Kotlin and
• hdshare/wauxiliary_publicWAuxiliary is an Android module that adds unofficial features and tweaks to the WeChat app at runtime using th
• jetbrains/intellij-platform-plugin-templateAn official JetBrains GitHub template for building IntelliJ IDEA plugins, providing a pre-configured Gradle pr
• videolan/vlc-androidThe official VLC media player for Android, supporting a huge range of video and audio formats, network streami
• git-xuhao/kotlinmvpA complete Android video-browsing app built in Kotlin as a learning project, demonstrating the MVP architectur
• pierfrancescosoffritti/android-youtube-playerAn Android library that adds reliable YouTube video playback to your app using YouTube's own web player, repla
• gradle/kotlin-dsl-samplesA now-obsolete collection of sample Gradle build scripts written in Kotlin instead of Groovy, created by the G
• bufferapp/android-clean-architecture-boilerplateA Kotlin Android starter project from Buffer that shows Clean Architecture in action — four separate layers (U
• element-hq/element-androidElement Android is the older version of the Element messaging app for Android, connecting to the open Matrix n
• guolindev/permissionxPermissionX is an Android library that simplifies asking users to grant app permissions. It handles all the ed
• takusemba/spotlightAn Android library that creates onboarding tutorials by drawing a glowing spotlight ring over specific parts o
• smarttoolfactory/jetpack-compose-tutorialsA hands-on tutorial series that teaches Android developers how to build UIs with Jetpack Compose.
• foso/jetpack-compose-playgroundA runnable collection of Jetpack Compose examples showing how to build Android UI layouts, components, and Mat
• edvin/tornadofxA lightweight, no longer maintained Kotlin framework for building JavaFX desktop apps with type-safe UI and CS
• simplemobiletools/simple-calendarAn open source, offline Android calendar app with event reminders, CalDAV syncing, and no ads.
• guoxicheng/skipSKIP automatically taps the skip button on splash screen ads in Android apps, using accessibility services and
• whitedns/whitedns-androidWhiteDNS is an Android app that routes your phone's internet traffic through DNS tunneling services to bypass
• aks-labs/cloudgalleryAn open-source Android app that backs up your photos to Telegram instead of Google Photos or iCloud, for free
• spotui/spotuiAn Android app that recreates the Spotify interface, syncing with a real Spotify account for playlists, lyrics
• dominostars/playtranslateAn Android app that reads game text off your screen in real time and translates it as an overlay, for language
• nuviomedia/nuviodesktopNuvio is a cross-platform Android and iOS media hub app, built with Kotlin Multiplatform, that plays content t
• trooped/quickbarsAn Android TV overlay app that lets you control your Home Assistant smart home devices right from your TV remo
• zethrise/aetheryAethery is a native Android app that wraps the Aether censorship-circumvention network core, adding a VPN or S
• skydoves/compose-nav-graphCompose Navigation Graph is an Android Studio plugin that visualizes an entire Jetpack Compose app's screens a
• nai64/nai64patchesA set of Morphe patches for Android games on the AppLovin ad SDK that block or bypass ads, redirect around Pai
• sylvara-lin/lianyu-appAn open source Android framework for building an AI companion chat app, with chat, character profiles, and mem
• airbnb/viaductAn open source GraphQL system from Airbnb where teams host their business logic directly on one shared, centra
• dr-tsng/polyglotytAn Xposed module that shows bilingual subtitles inside the YouTube Android app, translated via Google, Microso
• v-modal/vmodal_sdk_androidAn Android Kotlin SDK that adds semantic video search, upload, and playback moment-finding to an app, without
• risa-labs-inc/bossconsoleA native desktop console that gives AI coding agents a real browser, terminal, and editor, while exposing over
• marshallbear1/react-native-system-thumbnailsA React Native library that generates the operating system's own file thumbnail, or a fallback icon, for local
• harmony-on-android/hoaAndroid runtime that loads and executes OpenHarmony HAP apps written in ArkTS or ArkUI, by patching ArkUI-X 6.
• zepto-labs/react-native-deltaA React Native SDK that ships app updates as small binary patches instead of resending the whole JavaScript bu
• amrdoh/clockmasterThird-party Android clock app written in Kotlin with a Material Expressive visual style, distributed as a GitH
• 1812z/hypercopyHyperCopy is an Android module that detects clipboard content matching a rule and jumps directly to the right
• doesthings/freefccFreeFCC is a free Android app that switches DJI smart controllers from CE to FCC radio mode for stronger drone
• lightfeather721/destinationcompassAn Android app built with Kotlin and Jetpack Compose that shows a live compass direction to a chosen destinati
• suoracle/grouteA free Android app for bypassing internet censorship, built on the Xray-core engine with support for multiple
• huyujie275-gif/bloodsugarappAn Android app for tracking blood glucose readings via Bluetooth or manual entry, with AI powered health sugge
• auroranest/modify_positioningA no-root Android app that injects a chosen fake GPS location into the phone's standard location system for de
• busung-dev/root-my-galaxyA one-click rooting app for a specific list of supported Samsung Galaxy phones, using KernelSU.
• ahatem/qtranslateA desktop app that lets you select any text, press Ctrl+Q, and instantly see a translation popup, with OCR, te
• paditianxiu/qq_revivedQQ Revived is an Xposed module that hooks into the QQ smartwatch app and replaces its home and chat screens wi
• ashanews9776-eng/asha_scannerA native Android app that scans for fast, clean Cloudflare IP addresses to use with VLESS, Trojan, and other p
• computerbyte/hermex-androidA native Android app for chatting with your own self-hosted Hermex or Hermes AI server, with streaming chat, p
• loverconnect/loverconnectAn Android app that shares your phone's battery, steps, app usage, and weather with an AI companion chatbot ov
• 07jasjeet/lazysurfaceLazySurface is a Kotlin library that lets developers build a pannable, zoomable 2D canvas where items are posi
• umamoorg/umamoAn open-source 2D puppet rigging editor that works with Live2D Cubism file formats, built for pen and touch in
• yukioooooo0/qingzaiAn Android app that downloads Douyin (Chinese TikTok) videos, photos, and slideshows without the watermark, en
• lyssadev/spotilolAn Android app that wraps Spotify's web player with a built-in ad blocker and extra playback features.
• ahxn00/owntvAn open-source, remote-controlled IPTV player for Android TV that plays your own M3U or Xtream playlists with
• androidpoet/mirageA Jetpack Compose library offering 29 ready-made GPU shader effects like animated gradients and image filters
• arsenoal/syncforgeSyncForge is an offline-first sync engine for Kotlin Multiplatform that adds a durable outbox, push/pull sync,
• azxcvn/mpvrx-cnA community Chinese translation of the mpvRx Android video player app, with sponsorship prompts and auto-updat
• coolwuzizai/maidong-ktvA free, open-source local karaoke app for Android TV boxes, remote-controlled, with song search, queueing, and
• getactivity/rxpayA Kotlin library that lets Android developers add Alipay and WeChat Pay through one simple interface, avoiding
• tencent-rtc/atomic_liveA mobile SDK that lets Android and iOS apps play live video streams fast, with under 600ms startup and smooth
• pavanayi1/ktm-nav-gen3A free open-source Android app that mirrors Google Maps turn-by-turn navigation to KTM and Husqvarna Gen-3 mot
• gigglewang/mobileagent-androidAn Android app that lets a vision-capable AI model see your screen and operate your phone to complete tasks yo
• rodrig02005/emuhub-appAn Android app that automatically finds, recommends, and installs the right GPU drivers and Windows-compatibil
• bobsupra/nuviotvosA native Apple TV app for the Nuvio streaming app, with Stremio-compatible catalogs, debrid service support, T
• zenjahid/bkash-syncAn Android app that reads bKash payment SMS messages and syncs transaction details to your own server, so you
• coldp/todaywallpaperAn Android app that displays wallpapers in a calendar-style, date-driven browsing layout with themed categorie
• omarahmedx14/my-android-playgroundPersonal Android learning project in its foundation phase, set up with Kotlin, Jetpack Compose, Hilt, Room, an
• zomato/pulse-droidAn Android library that wraps MQTT messaging (real-time updates, notifications) behind a simple command-based
• wifi-x-smasher/nuvio-windows-unofficialAn unofficial Windows desktop app that brings the Nuvio streaming organizer to PC, letting you browse your add
• burgerk1ng16/vertick-imeAn open-source Android Chinese keyboard app offering offline Pinyin typing, voice dictation, and AI text polis
• huiyeji-7/pei-pei-shuaAn Android study app for China's civil service exam that adds a floating AI button over any app — tap it to sc
• nikhilkain/strideStride is a free, privacy-first Android step counter app with no ads or accounts. It counts steps, shows progr
• boltai/inkaAn Android app for BOOX e-ink tablets that turns handwritten notes into AI replies written back in handwriting

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