A full-stack, syncing database that runs on both server and client. Pluggable storage (indexeddb, sqlite, durable objects), syncs over websockets, and works with your favorite framework (React, Solid, Vue, Svelte).
SQLiteand
PostgreSQL
3xpl (pronounced ?ri?ks'pl, short for 3xplor3r) is a super-fast, universal explorer for most popular public blockchains. It offers an easy-to-understand block explorer interface for ordinary crypto users, as well as numerous professional features for developers and analysts.
Moddio is a Multiplayer-First Game Engine. It has a built-in server-authoritative netcode, including snapshot interpolation and client-side reconciliation. It can support 50+ concurrent players or 300+ moving entities hosted on a $5/month VM.
Godot Engineand
Open-source PNGTubing software offering customizable animated models, easy-to-use editor, multiple image format support, input capture, and free commercial use.
Multi-protocol mock server for HTTP, gRPC, GraphQL, WebSocket, MQTT, SSE, and SOAP. One Go binary, zero dependencies. Supports stateful CRUD, digital twins (passes real SDK tests), chaos engineering, OpenAPI/Postman/HAR/cURL import, and a built-in MCP server for AI agents.
Discover and capture container network traffic from your comfy desktop Wireshark, using a containerized service and a Wireshark plugin.
This is a simple ping application that displays real-time ping times to a specified host using a Deno backend, a WebSocket connection, and a WebView frontend with a Chart.js graph.
Ghostboard is a lightweight, self-hosted solution for real-time synchronized text sharing. This repository includes a WebSocket server for syncing text across multiple clients and a command-line client for retrieving or updating the shared text.
deepstream.io is a clusterable realtime server that handles persistent tcp and websocket connections. It offers data-sync, pub/sub and request/response. It's available for Linux, Mac and Windows and comes with clients in JS, Java and many others.
Scaledrone is a realtime messaging service and platform. Send live updates, create chatrooms and collaborative tools.
Primus, the creator god of transformers but now also known as universal wrapper for real-time frameworks. There are a lot of real-time frameworks available for Node.js and they all have different opinions on how real-time should be done.
Crow is a C++ microframework for running web services. It uses routing similar to Python's Flask which makes it easy to use. It is also extremely fast, beating multiple existing C++ frameworks as well as non C++ frameworks.
Enterprise-grade infrastructure enables secure, low-latency pub/sub messaging, supporting mission-critical realtime features and automatic failover globally.
SockJS is a browser JavaScript library that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Js API which creates a low latency, full duplex, cross-domain communication channel between the browser and the web server.
Real-time communication service for connecting online devices. Infrastructure and APIs for IoT, gaming, apps and real-time web.
Firecamp's GraphQL playground is all in one GraphQL debugging tool which let you debug, collaborate and document your GraphQL APIs within a team for all platform.
Faye is a set of tools for simple publish-subscribe messaging between web clients. It ships with easy-to-use message routing servers for Node.js and Rack applications, and clients that can be used on the server and in the browser.
Crossbar.io is a router for the open WebSocket Application Messaging Protocol, and it is open source. Together with the open source WebApplicationMessagingProtocol client libraries it is a connection fabric for components in distributed applications.
nginxand
Apache HTTP Server
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