Apps with 'Websocket streams' feature

Shinobi is an Open Source CCTV software written in Node.JS. Streams are img tags, but not MJPEG. Images are transferred through WebSocket. Files are saved in WebM videos, not JPEGs.

Gotify is a service for sending (via a REST-API) and receiving (via browser/android app) push notifications.

Postwoman is an open-source API request builder. It helps you create your requests faster, saving you precious time on your development.FEATURES

A free, online REST API builder that works with CORS. A Postman alternative without the native apps.

Scaledrone is a realtime messaging service and platform.
Send live updates, create chatrooms and collaborative tools.

Flussonic is a great scalable Media Server that is a cost effective alternative to...

Datarhei/Restreamer offers smart free video streaming in real time. Stream H.264 video of IP cameras live to your website.

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality to web and mobile apps.

A lightweight static web server and reverse proxy designed for the modern web.

Trade Crypto on Iphone, Android, and Desktop with advanced orders and bots applications.

Ably’s APIs provide developers with the infrastructure to power realtime functionality at any scale. Instead of building and operating infrastructure, engineers can focus on shipping the features and functionality that matter to their customers.