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k-9
839 IssuesK-9 Mail – Open Source Email App for Android
(thundernest/k-9)tasks
814 IssuesBringing Astrid Tasks back from the dead
(tasks/tasks)userland
793 IssuesMain UserLAnd Repository
(cypherpunkarmory/userland)orgzly-android
516 IssuesOutliner for taking notes and managing to-do lists
(orgzly/orgzly-android)openfoodfacts-androidapp
388 IssuesNative version of Open Food Facts on Android - Coders & Decoders welcome 🤳🥫
(openfoodfacts/openfoodfacts-androidapp)reference-browser
384 IssuesA full-featured browser reference implementation using Mozilla Android Components.
(mozilla-mobile/reference-browser)pact-jvm
357 IssuesJVM version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.
(pact-foundation/pact-jvm)rethink-app
349 IssuesDNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.
(celzero/rethink-app)mockk
295 Issuesmocking library for Kotlin
(mockk/mockk)mihon
265 IssuesFree and open source manga reader for Android
(mihonapp/mihon)picasso
225 IssuesA powerful image downloading and caching library for Android
(square/picasso)ground-android
214 IssuesGround mobile data collection app for Android
(google/ground-android)kotlin
181 IssuesThe Kotlin Programming Language
(jetbrains/kotlin)okhttp
175 IssuesSquare’s meticulous HTTP client for the JVM, Android, and GraalVM.
(square/okhttp)jitsi-videobridge
173 IssuesJitsi Videobridge is a WebRTC compatible video router or SFU that lets build highly scalable video conferencing infrastructure (i.e., up to hundreds of conferences per server).
(jitsi/jitsi-videobridge)ktor
155 IssuesFramework for quickly creating connected applications in Kotlin with minimal effort
(ktorio/ktor)kotlintest
144 IssuesPowerful, elegant and flexible Kotlin test framework
(kotlintest/kotlintest)kotest
144 IssuesPowerful, elegant and flexible test framework for Kotlin with additional assertions, property testing and data driven testing
(kotest/kotest)refreshversions
120 IssuesLife is too short to google for dependencies and versions
(splitties/refreshversions)streetcomplete
110 IssuesEasy to use OpenStreetMap editor for Android
(streetcomplete/streetcomplete)moshi
109 IssuesA modern JSON library for Kotlin and Java.
(square/moshi)spek
103 IssuesA specification framework for Kotlin
(spekframework/spek)okio
93 IssuesA modern I/O library for Android, Java, and Kotlin Multiplatform.
(square/okio)ktorm
87 IssuesA lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.
(kotlin-orm/ktorm)mockito-kotlin
75 IssuesUsing Mockito with Kotlin
(nhaarman/mockito-kotlin)mockito-kotlin
75 IssuesUsing Mockito with Kotlin
(mockito/mockito-kotlin)store
55 IssuesA Kotlin Multiplatform library for building network-resilient applications
(mobilenativefoundation/store)splitties
53 IssuesA family of small Kotlin libraries for delightful Android development
(louiscad/splitties)assertk
50 Issuesassertions for kotlin inspired by assertj
(willowtreeapps/assertk)lottie-react-native
46 IssuesLottie wrapper for React Native.
(lottie-react-native/lottie-react-native)arrow
43 IssuesFunctional companion to Kotlin's Standard Library
(arrow-kt/arrow)kotlin-wrappers
42 IssuesKotlin wrappers for popular JavaScript libraries
(jetbrains/kotlin-wrappers)orchid
41 IssuesA beautiful and truly unique documentation engine and static site generator.
(javaeden/orchid)orchid
41 IssuesBuild and deploy beautiful documentation sites that grow with you
(orchidhq/orchid)coil
41 IssuesImage loading for Android backed by Kotlin Coroutines.
(coil-kt/coil)atrium
40 IssuesA multiplatform expectation library for Kotlin
(robstoll/atrium)slidetoact
34 IssuesA simple 'Slide to Unlock' Material widget for Android, written in Kotlin 📱🎨🦄
(cortinico/slidetoact)http4k
33 IssuesThe Functional toolkit for Kotlin HTTP applications. http4k provides a simple and uniform way to serve, consume, and test HTTP services.
(http4k/http4k)kwik
32 IssuesProperty-based testing library for Kotlin
(jcornaz/kwik)dodoformastodon
26 Issues🐘 Mastodon client for Android, iOS and Desktop (JVM)
(androiddev-social/dodoformastodon)flame-coach-service
21 IssuesService API for Flame Nutrition Coach
(flamenutrition/flame-coach-service)cascade
18 IssuesNested popup menus with smooth height animations for Android
(saket/cascade)rencfs-kotlin
18 IssuesGUI for rencfs in Koltin Multiplatform with Compose
(radumarias/rencfs-kotlin)jicofo
17 IssuesJItsi COnference FOcus is a server side focus component used in Jitsi Meet conferences.
(jitsi/jicofo)hexagon
17 IssuesHexagon is a microservices toolkit written in Kotlin. Its purpose is to ease the building of services (Web applications or APIs) that run inside a cloud platform.
(hexagontk/hexagon)hexagon
17 IssuesHexagon is a microservices toolkit written in Kotlin. Its purpose is to ease the building of services (Web applications or APIs) that run inside a cloud platform.
(hexagonkt/hexagon)ktlint
16 IssuesAn anti-bikeshedding Kotlin linter with built-in formatter
(pinterest/ktlint)requestmapper
16 Issues🔍 Request mapper is a plugin for IntelliJ IDEA for quick navigation to URL mapping declarations
(viartemev/requestmapper)neat-form
16 IssuesBuild form on Android using JSON schema; also includes view validation and skip logic.
(ellykits/neat-form)kformmaster
16 IssuesGeneric form builder in Kotlin
(thejuki/kformmaster)