💯 Curated coding interview preparation materials for busy software engineers

Production-ready platform for agentic workflow development.

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

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

Apache Superset is a Data Visualization and Data Exploration Platform

Build like a team of hundreds_

Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

very good whiteboard SDK / infinite canvas SDK

Presentation Slides for Developers

Scheduling infrastructure for absolutely everyone.

👨🏻‍💻👩🏻‍💻 Use Ant Design like a Pro!

A declarative, efficient, and flexible JavaScript library for building user interfaces.

Umami is a modern, privacy-focused alternative to Google Analytics.

Build Better Websites. Create modern, resilient user experiences with web fundamentals.

Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message…

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open sour…

An open protocol enabling communication and interoperability between opaque agentic applications.

The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra

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

The fastest way to develop full-stack web apps with React & Node.js.

React components to build charts and dashboards

⚡️ GenBI (Generative BI) queries any database in natural language, generates accurate SQL (Text-to-SQL), charts (Text-to-Chart), and AI-powered business intelligence in seconds.

OCR & Document Extraction using vision models

Session replay, cobrowsing and product analytics you can self-host. Ideal for reproducing issues and iterating on your product.

Scira (Formerly MiniPerplx) is a minimalistic AI-powered search engine that helps you find information on the internet and cites it too. Powered by Vercel AI SDK! Open Source perplexity alternative.

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

Open-Source Form Builder

Studying for a tech interview sucks. Here's an open source cheat sheet to help

Byterover Cipher is an opensource memory layer specifically designed for coding agents. Compatible with Cursor, Codex, Claude Code, Windsurf, Cline, Claude Desktop, Gemini CLI, AWS's Kiro, VS Code,…