
Send push notifications to your phone or desktop using PUT/POST

Send push notifications to your phone or desktop via simple HTTP PUT/POST requests. ntfy is a lightweight, open-source pub-sub notification service that requires no sign-up, authentication, or fees to use the public instance.
Developers and system administrators who need a simple, lightweight way to receive notifications from scripts and automated processes without managing complex infrastructure or dealing with vendor lock-in.

The open-source notification infrastructure. In-app Inbox component, E-mail, SMS, Push and Slack Integrations.

💌 Build and send emails using React

✉️ Send e-mails with Node.JS – easy as cake!

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.

Janus WebRTC Server

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

Give your AI agent eyes to see the entire internet. Read & search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu — one CLI, zero API fees.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

General-purpose AI designed for knowledge workers — creators, strategists, and operators — and individuals seeking AI systems they can truly control to help them get work done, with full flexibility to extend and deploy anywhere (VPC, on-prem, or cloud).

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

Infisical is the open-source platform for secrets, certificates, and privileged access management.

🎧 Your Personal Streaming Service

A self hosted virtual browser that runs in docker and uses WebRTC.