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Top 23 Kotlin f-droid Projects
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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ImageToolbox
🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to filters, OCR, and a wide range of image processing options
Project mention: Image Toolbox: Powerful FOSS Image Editor for Android | news.ycombinator.com | 2025-04-01 -
Project mention: ReadYou VS capyreader - a user suggested alternative | libhunt.com/r/ReadYou | 2024-12-18
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>Flutter two finger scroll "bug" is gone.
Why is "bug" in scare quotes here? It was most definitely a bug.
>I wouldn't say its unlikely they carried a patch for it, I just wrote a framework patch that I apply at build time in CI and locally.
The actual fix was pretty involved. I doubt a large company like Bytedance would want to carry around extra patches at the gesture level that make the dev cycle more difficult. Having one person carry a patch on their local machine is a different story.
Anyway, the Bytedance blogpost says only 200 devs are using Flutter which would make no sense if it was used in Douyin, and LibChecker[0] returns no results for libflutter.so.
[0] https://github.com/LibChecker/LibChecker
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apkupdater
APKUpdater is an open source tool that simplifies the process of finding updates for your installed apps.
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plain-app
PlainApp is an open-source app that lets you securely manage your phone from a web browser. Access files, media, contacts, SMS, calls, and more through a simple, easy-to-use interface on your desktop.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Gramophone
A sane music player built with media3 and material design library that is following android's standard strictly.
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otphelper
open-source application that can copy OTP and codes from notifications automatically for you
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IYPS
A password strength app that evaluates and rates your password's robustness, estimates crack time, and provides helpful warnings and suggestions for stronger passwords.
Project mention: Avoid US or Take Burner Devices, Canadian Executives Tell Staff | news.ycombinator.com | 2025-04-14 -
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freeDictionaryApp
freeDictionaryApp or free Dictionary App is a simple Android application for freeDictionaryAPI. (a reincarnation of https://github.com/yamin8000/Owl2) implemented using Kotlin and Jetpack Compose
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MBCompass
A fully functional jetpack compose compass app that uses device magnetometer to find cardinal direction
Project mention: Show HN: MBCompass – A minimalist, offline Android compass app (FOSS, ~400KB) | news.ycombinator.com | 2025-05-11 -
Dooz
Dooz or Tic-tac-toe is a simple pen-and-paper game. I created this implementation using Kotlin and Jetpack Compose for Android devices.
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geekttrss
Geekttrss is an Tiny Tiny Rss reader application with transparent offline mode for the Android platform
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Tournant
Tournant is a recipe manager which serves your dishes on your Android device! It is compatible with the Gourmand desktop application.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
Kotlin f-droid discussion
Kotlin f-droid related posts
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Seal: Video/Audio Downloader for Android
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Seal: Video/Audio Downloader for Android, Based on Yt-Dlp
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material 3 preview
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Best music downloader
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How to download songs on YouTube Music
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What is drc file?
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⟳ 2 apps added, 35 updated at f-droid.org
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A note from our sponsor - Stream
getstream.io | 18 Jul 2025
Index
What are some of the best open-source f-droid projects in Kotlin? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Seal | 20,372 |
| 2 | ImageToolbox | 8,812 |
| 3 | ReadYou | 6,150 |
| 4 | LibChecker | 5,605 |
| 5 | Neo-Store | 3,703 |
| 6 | apkupdater | 3,304 |
| 7 | plain-app | 2,955 |
| 8 | wgtunnel | 1,640 |
| 9 | Xtra | 1,583 |
| 10 | Gramophone | 1,560 |
| 11 | MoeMemosAndroid | 787 |
| 12 | otphelper | 623 |
| 13 | lunar-launcher | 496 |
| 14 | IYPS | 208 |
| 15 | Let-Me-Downgrade | 193 |
| 16 | freeDictionaryApp | 146 |
| 17 | MBCompass | 99 |
| 18 | Dooz | 97 |
| 19 | pincredible | 93 |
| 20 | geekttrss | 53 |
| 21 | Tournant | 47 |
| 22 | Vault | 46 |
| 23 | BuddhaQuotes | 42 |
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Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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