Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

A list of Free Software network services and web applications which can be hosted on your own servers

Open-source Windows and Office activator featuring HWID, Ohook, TSforge, and Online KMS activation methods, along with advanced troubleshooting.

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

An open-source cross-platform alternative to AirDrop

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Agent skill for beautiful, verifiable architecture, workflow, sequence, data-flow, and lifecycle diagrams—self-contained HTML with motion and crisp export.

Easy to maintain open source documentation websites.

📝A simple and elegant markdown editor, available for Linux, macOS and Windows.

"rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files

A simple zero-config tool to make locally trusted development certificates with any names you'd like.

The Free Software Media System - Server Backend & API

The open alternative to Salesforce, designed for AI.

Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more

Learn it. Build it. Ship it for others.

Wrap Antigravity, ChatGPT Codex, Claude Code, Grok Build, Muse Code, Davin as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini Series, GPT Series, Grok Se…

Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.

The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data 📊

Streamlit — A faster way to build and share data apps.

Node.js/Typescript/Bun Production Process Manager with a built-in Load Balancer.

OpenHuman is the fastest, cheapest, most efficient open-source agent harness. Written in Rust

DSPy: The framework for programming—not prompting—language models

100+ open-source clones of popular sites like Airbnb, Amazon, Instagram, Netflix, Tiktok, Spotify, Whatsapp, Youtube etc. See source code, demo links, tech stack, github stars.

TypeScript & JavaScript ORM for Node.js — supports PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, and more.

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

A browser automation framework and ecosystem.