61 open-source messaging apps
Open Source Messaging Apps
The most popular open-source messaging apps for Android on GitHub are Telegram for Android, Jitsi Meet and Signal for Android. appsgit lists 61, 47 of them on F-Droid, each with its license, last commit and store links.
Updated Oct 28, 2026
Open Source Messaging Apps
Telegram for Android
DrKLO/Telegram
Telegram is a messaging app with a focus on speed and security.
Maintained · last commit Oct 25, 2026
OfficialMessaging & chatAndroid
Jitsi Meet
jitsi/jitsi-meet
Instant video conferences efficiently adapting to your scale.
Active · last commit Oct 28, 2026
Messaging & chatAndroidiOSSignal for Android
signalapp/Signal-Android
A private messenger for Android.
Active · last commit Oct 26, 2026
OfficialMessaging & chatAndroid
SimpleX Chat
simplex-chat/simplex-chat
SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!
Active · last commit Oct 21, 2026
OfficialMessaging & chatAndroidiOSSignal for iOS
signalapp/Signal-iOS
Signal is a free and open source messaging app for simple private communication with friends.
Active · last commit Oct 21, 2026
OfficialMessaging & chatiOS
Element Classic
element-hq/element-android
Previous generation Element.
Active · last commit Sep 25, 2026
OfficialMessaging & chatAndroid
FluffyChat Matrix Messenger
krille-chan/fluffychat
The open-source, non-profit European alternative to big tech’s messaging and vid.
Active · last commit Oct 28, 2026
Messaging & chatAndroidiOS
QUIK SMS
quik-sms/quik
Open source replacement to the stock SMS app on Android.
Active · last commit Sep 27, 2026
Messaging & chatAndroid
Mattermost
mattermost/mattermost-mobile
Secure, self-hosted workplace messaging.
Active · last commit Oct 27, 2026
OfficialMessaging & chatAndroid
Element X
element-hq/element-x-android
Sovereign. Seamless. On Matrix.
Active · last commit Oct 27, 2026
OfficialMessaging & chatAndroidRocket.Chat
RocketChat/Rocket.Chat.ReactNative
The Secure CommsOS for mission-critical operations.
Active · last commit Oct 27, 2026
OfficialMessaging & chatAndroidiOSConduit
cogwheel0/conduit
Native iOS and Android client for Open WebUI, direct OpenAI-compatible, Ollama, and Hermes agents.
Active · last commit Oct 26, 2026
Messaging & chatAndroidiOS
SpamBlocker (Call & SMS)
aj3423/SpamBlocker
Spam Call/SMS blocker.
Active · last commit Oct 28, 2026
Messaging & chatAndroid
Delta Chat
deltachat/deltachat-android
Decentralized private messenger with chat-shared tools and games.
Active · last commit Oct 27, 2026
Messaging & chatAndroid
Fossify Messages
FossifyOrg/Messages
Open-source and Ad-free SMS/MMS messaging app.
Active · last commit Oct 26, 2026
OfficialMessaging & chatAndroid
Forkgram
forkgram/TelegramAndroid
Forkgram is a fork of the official Telegram for Android application.
Active · last commit Oct 26, 2026
Messaging & chatAndroidCherrygram
arsLan4k1390/Cherrygram
Cherrygram is a third-party Telegram client with not many but useful modifications.
Active · last commit Oct 1, 2026
Messaging & chatAndroid
Databag
balzack/databag
A federated chat client designed for privacy and selfhosting.
Maintained · last commit Jun 14, 2026
Messaging & chatAndroidiOS
Threema Libre
threema-ch/threema-android
Secure and private messaging.
Maintained · last commit Sep 23, 2026
OfficialMessaging & chatAndroid
Meshenger
meshenger-app/meshenger-android
Voice- and video phone App for off-the-grid scenarios.
Maintained · last commit Sep 21, 2026
Messaging & chatAndroidElement X for iOS
element-hq/element-x-ios
Next generation Matrix client for iOS built with SwiftUI on top of matrix-rust-sdk.
Active · last commit Oct 27, 2026
OfficialMessaging & chatiOSSession
session-foundation/session-android
Encrypted private messenger.
Active · last commit Oct 14, 2026
Messaging & chatAndroid
Nextcloud Talk
nextcloud/talk-android
Have private video calls and chat using your own server.
Active · last commit Oct 28, 2026
OfficialMessaging & chatAndroid
SMS Import / Export
tmo1/sms-ie
Imports and exports SMS and MMS messages and other data.
Active · last commit Oct 22, 2026
Messaging & chatAndroid
SMS to URL Forwarder
bogkonstantin/android_income_sms_gateway_webhook
Simple incoming SMS to URL forwarder.
Maintained · last commit Jun 10, 2026
Messaging & chatAndroid
Mercurygram
Mercurygram/Mercurygram
Telegram is a messaging app with a focus on speed and security.
Active · last commit Oct 28, 2026
Messaging & chatAndroid
Deku SMS
dekusms/DekuSMS-Android
DekuSMS is an SMS app that supports end to end encryption, cloud forwarding and.
Active · last commit Oct 26, 2026
Messaging & chatAndroid
Weechat-Android
ubergeek42/weechat-android
Relay client for the WeeChat IRC client.
Maintained · last commit Sep 13, 2026
Messaging & chatAndroid
Watomatic
adeekshith/watomatic
Auto reply bot for WhatsApp, FB Messenger and more soon.
Maintained · last commit May 12, 2026
Messaging & chatAndroid
SchildiChat Legacy
SchildiChat/SchildiChat-android
Secure messenger for Matrix with a traditional instant messaging experience.
Maintained · last commit Oct 2, 2026
Messaging & chatAndroidZulip
zulip/zulip-flutter
Open-source team chat that helps teams stay productive and focused.
Active · last commit Oct 27, 2026
OfficialMessaging & chatAndroidiOSLocal LLMs On Android
dineshsoudagar/local-llms-on-android
Run local LLMs like Gemma, Qwen, and LLaMA on Android for offline, private, real-time chat and question answering with LiteRT and ONNX Runtime.
Active · last commit Oct 27, 2026
Messaging & chatAndroidSpeak Gpt
AndraxDev/speak-gpt
Your personal voice assistant based on OpenAI ChatGPT.
Maintained · last commit Jul 19, 2026
Messaging & chatAndroid
baresip
juha-h/baresip-studio
VoIP and mobile calling and messaging app based on baresip library.
Active · last commit Oct 27, 2026
Messaging & chatAndroidThreema for iOS
threema-ch/threema-ios
This repository contains the complete source code of Threema for iOS.
Maintained · last commit Oct 26, 2026
OfficialMessaging & chatiOS
oxproxion
stardomains3/oxproxion
Chat with OpenRouter, Ollama, LM Studio and llama.cpp AI models.
Active · last commit Oct 24, 2026
Messaging & chatAndroid
ArcaneChat
ArcaneChat/android
Fast encrypted chats for the family.
Active · last commit Oct 19, 2026
Messaging & chatAndroidHermes Relay
Codename-11/hermes-relay
Hermes-Relay — Your Hermes AI agent, in your pocket — chat, voice, and control.
Active · last commit Oct 20, 2026
Messaging & chatAndroid
Silence
x13a/Silence
Block unknown callers.
Maintained · last commit Aug 1, 2026
Messaging & chatAndroid
DankChat
flex3r/DankChat
A simple app to chat on Twitch.tv.
Active · last commit Oct 27, 2026
Messaging & chatAndroid
WhatsAppCleaner
VishnuSanal/WhatsAppCleaner
Cleaner for WhatsApp - Clean Redundant Media and Files from Storage.
Active · last commit Jul 30, 2026
Messaging & chatAndroid
TRIfA
zoff99/ToxAndroidRefImpl
Tox Reference implementation for Android.
Active · last commit Oct 26, 2026
Messaging & chatAndroid
SchildiChat Next
SchildiChat/schildichat-android-next
Next-generation SchildiChat Matrix messenger based on Element X.
Maintained · last commit Oct 27, 2026
Messaging & chatAndroidSeekerClaw
sepivip/SeekerClaw
Turn your Solana Seeker (or any Android phone) into a 24/7 personal AI agent.
Active · last commit Sep 24, 2026
Messaging & chatAndroidIrccloud
irccloud/android
The official Android app for IRCCloud.com ======= Chat on IRC from anywhere, and never miss a message.
Maintained · last commit Apr 28, 2026
Messaging & chatAndroidIrccloud for iOS
irccloud/ios
Join our #ios channel on irc.irccloud.com for feedback and suggestions so we can improve the app.
Maintained · last commit Oct 28, 2026
Messaging & chatiOS
VoIP.ms SMS
michaelkourlas/voipms-sms-client
Popular Android messaging app for VoIP.ms, a Canadian VoIP provider.
Maintained · last commit Sep 27, 2026
Messaging & chatAndroid
Wire • Secure Messenger
wireapp/wire-android
Wire offers highly secure communication – anywhere and anytime.
Active · last commit Oct 27, 2026
OfficialMessaging & chatAndroid
Showing 1-48 of 61 by GitHub stars. All mobile apps A to Z · JSON API
What are the best open-source messaging apps?
By GitHub stars, Telegram for Android is the most popular (30,179 stars), followed by Jitsi Meet and Signal for Android. Each page lists the license, the last commit and the F-Droid, Google Play or App Store link when the project publishes one.
Which of these apps work on iPhone?
11 of the 61 open-source messaging apps listed here run on iOS, including Jitsi Meet and SimpleX Chat, and 57 run on Android.
Are these apps on F-Droid?
47 of the 61 are on F-Droid, which builds them from source. 33 of those have no anti-features (such as ads, tracking or a non-free network service) flagged by F-Droid; each app page lists any that are.
How are these open-source messaging apps chosen?
Apps come from the F-Droid index (apps whose source code is on GitHub), GitHub topics such as android-app, flutter-app, ios-app and jetpack-compose, and a short hand-checked list of official apps that are not on F-Droid. An app is listed only if its license is OSI-approved or FSF-free (F-Droid's license first, then GitHub's), the repository has a README and a commit in the last six months and is not archived, and it has 100+ GitHub stars (F-Droid apps) or 300+ stars (everything else). Libraries, SDKs, templates, samples and demo apps are left out. Source-available apps are never listed.