Open-Source Notification Platform. Embeddable Notification Center, E-mail, Push and Slack Integrations.

An open-source screen recorder built with web technology

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

Solid - Re-decentralizing the web (project directory)

Transmits AM radio on computers without radio transmitting hardware.

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

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/.

OptiKey - Full computer control and speech with your eyes

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

Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/

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！

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

Modern email for teams and professionals. A replacement for outdated email technology and tools. Alt to hey.com, front.com, missiveapp.com

🔮 Secure direct video group chat

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.

Build your own chat UI with React components in few minutes. Chat UI Kit from chatscope is an open source UI toolkit for developing web chat applications.

Web application synchronization between different tabs

A publish/subscribe EventBus optimized for iOS

Create multiple TOR instances with a load-balancing.

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