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Top 12 Kotlin Chat Projects
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simplex-chat
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
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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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chatgpt-android
📲 ChatGPT Android demonstrates a Chatbot application using OpenAI's chat API on Android with Stream Chat SDK for Compose.
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stream-chat-android
:speech_balloon: Android Chat SDK ➜ Stream Chat API. UI component libraries for chat apps. Kotlin & Jetpack Compose messaging SDK for Android chat
Project mention: Building Real-Time Chat with Kotlin Multiplatform and Stream Chat SDK | dev.to | 2024-10-07Stream's offerings and Kotlin Multiplatform might be a great fit for your next project. Embrace the future of app development by writing less code and delivering more value to your users.
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Signal-Android
Fork from a private messenger for Android with extra options added: full backup and (partial, ony text) xml backup of messages. Restore can happen at any time, not only after a fresh install. Import SMS database. Import of (unencrypted) WhatsApp databases. Removed apk expire. Choose between passphrase protection and the Android screenlock. Choice for the backup location (internal or removable storage on Android < 11 (on 11 and higher this is already possible)). Set the maptype in the place picke (by johanw666)
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Project mention: ChatLaunch for WhatsApp: Start WhatsApp chats without adding numbers to contacts | news.ycombinator.com | 2024-08-11
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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FlagChatAdapter
FlagChatAdapter is easy to implement enchanting recycler view adapter. Just extend your adapter with FlagChatAdapter, impliment some methods and voila! You have got the most beautiful looking chat on your phone. Zero boilerplate code, just put your variables in the right direction.
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ktor_chatting_application
Server/Client Chatting application that allows to choose to chat in a group chat or privately to a specific connected user
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kotlin-cli-chat
A personal Kotlin guide for Java developers. A simple chat with a command-line interface only to collect what I have found effective in Kotlin language
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periscope-chat-downloader
A simple command-line application that archives chat logs of pscp.tv broadcasts
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 Chat discussion
Kotlin Chat related posts
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Ask HN: Are there any truly private chat apps?
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SimpleX – the first messaging operating without user identifiers of any kind
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Ask HN: Is Washington Post correct in saying Signal is unsecure?
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Privacy preserving content moderation
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Multiple Russia-Aligned Threat Actors Actively Targeting Signal Messenger
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Show HN: Simplex: Automate browser workflows using code and natural language
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⟳ 4 apps added, 121 updated at f-droid.org
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A note from our sponsor - InfluxDB
www.influxdata.com | 23 May 2025
Index
What are some of the best open-source Chat projects in Kotlin? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | simplex-chat | 8,686 |
| 2 | chatgpt-android | 3,802 |
| 3 | stream-chat-android | 1,532 |
| 4 | ChatGPT-android-app | 336 |
| 5 | Signal-Android | 274 |
| 6 | WhatsAppNoContact | 158 |
| 7 | chatkitty | 47 |
| 8 | FlagChatAdapter | 40 |
| 9 | Chatting | 39 |
| 10 | ktor_chatting_application | 12 |
| 11 | kotlin-cli-chat | 7 |
| 12 | periscope-chat-downloader | 1 |
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