An open-source screen recorder built with web technology

K-9 Mail – Open Source Email App for Android

Transmits AM radio on computers without radio transmitting hardware.

OptiKey - Full computer control and speech with your eyes

qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.

📱 Wire for iOS (iPhone and iPad)

With PJON you build networks of devices for free with no need of a cloud service or a centralised platform you don’t fully control.

知名互联网企业内推资料整理 持续更新ing 。 目前已经维护五个微信群接近3000人，欢迎你的加入！

MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

🛡 I2P: End-to-End encrypted and anonymous Internet

Linux Library for low speed IO Communication in C with bindings for C++, Python, Node.js & Java. Supports generic io platforms, as well as Intel Edison, Intel Joule, Raspberry Pi and many more.

RFSec-ToolKit is a collection of Radio Frequency Communication Protocol Hacktools.无线通信协议相关的工具集，可借助SDR硬件+相关工具对无线通信进行研究。Collect with ♥ by HackSmith

A publish/subscribe EventBus optimized for iOS

Instant disposable single-binary live chat server. Go + VueJS.

Android Real Time Chat & Messaging SDK

Create multiple TOR instances with a load-balancing.

playSMS is a web interface for SMS gateways and bulk SMS services

Secure direct video chat

Zulip Desktop Client

Better company announcements

Serial I/O over bluetooth for NodeJS

Wormhole — it's better EventEmitter for communication between tabs with supporting Master/Slave.

QuickBlox iOS SDK for messaging and video calling

YARP - Yet Another Robot Platform

Efficient, lock-free, bounded Rust broadcast channel

Implementation of x-callback-url (Inter app communication) in swift

a modern Tox client for the GNU/Linux desktop

File sharing program using DC and ADC protocols

✉️ Send/Receive data between React Native app and WebView

The Open Source Cloud Communications Platform