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25 first-timers merged
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Most welcoming Kotlin repos
28 repos, most welcoming first
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1 starter issueunclaimed
- code
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81% mergedreport →replies in 3 days
25 first-timers merged
An issue to start with#1250 Local (Bergamot) translation doesn't offer Chinese, even though the Mozilla models exist (opens GitHub)
risa-labs-inc/
BossConsole Open-source, multi-platform harness for AI agents - a native, multi-threaded operator's console (JVM, not Electron) to run Claude Code, Codex, Gemini or OpenCode with a real browser, terminal, editor, secrets & 100+ MCP tools. Built for enterprises, science & research.
Kotlin 812 stars
1 starter issuetaken
- code
73% mergedreport →replies in 8 hours
13 first-timers merged
An issue to start with#1637 LogSanitizer: listener-visible throwables still carry raw stack-frame filenames (opens GitHub)1 open pull request
ktorio/
ktor Framework for quickly creating connected applications in Kotlin with minimal effort
Kotlin 15k stars
74% mergedreport →replies in 12 hours
26 first-timers merged
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apollographql/
apollo-kotlin A strongly-typed, caching GraphQL client for the JVM, Android, and Kotlin multiplatform.
Kotlin 4.0k stars
1 starter issueunclaimed
- code
81% mergedreport →replies in 13 hours
14 first-timers merged
An issue to start with#6836 JSpecify `@Nullable` annotation support as an option in com.apollographql.apollo.compiler.Options.kt JavaNullable enum (opens GitHub)
2 starter issues1 unclaimed
- code
- design
74% mergedreport →replies in 18 hours
14 first-timers merged
An issue to start with#6289 Rework UI of configure widget screens (opens GitHub)
- 68% mergedreport →
replies in 6 days
26 first-timers merged
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3 starter issues2 unclaimed
- code
78% mergedreport →replies in about a day
6 first-timers merged
An issue to start with#1022 Install apps not progressing when screen goes off in restore phase of lineageos 22 first boot (opens GitHub)
thunderbird/
thunderbird-android Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)
Kotlin · Java 14k stars
4 starter issuesall unclaimed
- code
64% mergedreport →replies in 5 days
18 first-timers merged
An issue to start with#11565 Repeat entry of phone pin to reveal imap/smtp password on Android 16 but not 10 (opens GitHub)
1 starter issuetaken
- code
62% mergedreport →replies in about a day
14 first-timers merged
An issue to start with#2984 Enable progressive mode for Kotlin (opens GitHub)1 open pull request
1 starter issueunclaimed
- code
54% mergedreport →replies in about a day
7 first-timers merged
An issue to start with#5078 Thread-safe date formatting and scope ownership for 2 launches left from #5070 (opens GitHub)
Greenstand/
treetracker-android Treetracker is Greenstands open source Android app to track and verify reforestation efforts globally. NEW DEVELOPERS: Please refer to the README for is issue milestones and topics! https://github.com/Greenstand/treetracker-android/blob/master/README.md
Kotlin 102 stars
2 starter issues1 unclaimed
- code
- translations
57% mergedreport →replies in 17 hours
13 first-timers merged
An issue to start with#1175 Bug: App crashes after capturing tree image (NullPointerException in TreeCapturer.setImage) (opens GitHub)
openMF/
mifos-x-field-officer-app Mifos X Field Officer Application - Latest Release Branch "MAIN", Default Branch for all PRs "DEV". Releases from Dev to Main subject to release process.
Kotlin 245 stars
50% mergedreport →replies in 14 hours
9 first-timers merged
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- 70% mergedreport →
replies in 2 hours
6 first-timers merged
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3 starter issues2 unclaimed
- code
70% mergedreport →replies in 5 hours
4 first-timers merged
An issue to start with#843 Extract pubsub code to its own module (opens GitHub)
RetroMusicPlayer/
RetroMusicPlayer Best Material You Design music player for Android
Kotlin · Java 5.3k stars
1 starter issueunclaimed
- code
- translations
50% mergedreport →replies in 9 hours
14 first-timers merged
An issue to start with#2021 zh-rCN translation key delete_song_x contains full-width characters ％ cause string format error (opens GitHub)
2 starter issues1 unclaimed
- code
- translations
47% mergedreport →replies in 2 days
12 first-timers merged
An issue to start with#3128 Feature Request: AI-Powered Bengali Subtitle Translation (opens GitHub)
AAswordman/
Operit The most powerful AI agent and AI chat software on Android/Operit是一款Android上能力最为强大、发展最久的AI Agent
Kotlin · JavaScript 8.2k stars
4 starter issuesall unclaimed
- code
- tests
45% mergedreport →replies in 5 days
6 first-timers merged
An issue to start with#617 [建议] 增加「设备状态定时上报到自定义 Webhook」能力 (opens GitHub)
fcitx5-android/
fcitx5-android Fcitx5 input method framework and engines ported to Android
Kotlin 5.7k stars
52% mergedreport →replies in 14 days
3 first-timers merged
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openMF/
mifos-mobile Repository for the Mifos Mobile Banking App for clients. Default Branch for PRs is Dev. Main is for release code and subject to Release Process
Kotlin 360 stars
47% mergedreport →replies in 23 hours
10 first-timers merged
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varabyte/
kobweb A modern framework for full stack web apps in Kotlin, built upon Compose HTML
Kotlin 2.3k stars
80% mergedreport →replies in about a day
4 first-timers merged
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ankidroid/
Anki-Android AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.
Kotlin 12k stars
3 starter issues1 unclaimed
- code
- tests
43% mergedreport →replies in 2 hours
9 first-timers merged
An issue to start with#19678 The message "An error occurred when generating an image occlusion note" is sometimes shown when clicking the check button in the Image Occlusion editor (opens GitHub)
- 56% mergedreport →
replies in about a day
4 first-timers merged
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- 41% mergedreport →
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10 first-timers merged
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5 starter issues2 unclaimed
- code
41% mergedreport →replies in 7 days
6 first-timers merged
An issue to start with#4630 [LeakScope] 21 Android lifecycle/memory violations detected (opens GitHub)
commons-app/
apps-android-commons The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons
Kotlin 1.2k stars
2 starter issues1 unclaimed
- code
37% mergedreport →replies in 20 hours
17 first-timers merged
An issue to start with#6434 no such table workspec (opens GitHub)
facebook/
fresco An Android library for managing images and the memory they use.
Kotlin · Java 17k stars
44% mergedreport →replies in under a minute
4 first-timers merged
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- 18% mergedreport →
replies in 3 hours
7 first-timers merged
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