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

📺 Visual Editor & GraphQL IDE.

A component toolkit for creating live-running code editing experiences, using the power of CodeSandbox.

🥄 Develop, test and document your React story components faster.

🧊 Open source LLM-Observability Platform for Developers. One-line integration for monitoring, metrics, evals, agent tracing, prompt management, playground, etc. Supports OpenAI SDK, Vercel AI SDK, Anthropic SDK, LiteLLM, LLamaIndex, LangChain, and more. 🍓 YC W23

This is a project to quickly experiment and learn electron related APIs

A cross-platform C# editor and playground.

A simple playground for HTML, CSS and JavaScript supporting module imports.

A Code Playground That Just Works!

React View is an interactive playground, documentation and code generator for your components.

Run your React code on the go

Advanced playground for GPT-3

Clone of OpenAI's ChatGPT and Playground environments to enable experimenting with API keys.

playground for running tRPC queries in the browser

An online playground for VueUse

The Taro Playground App is a cross-platform application developed using Taro, to help developers develop and debug Taro applications.

一个前端【代码 / 组件】的可视化方案，融合了【在线编辑 & 实时预览】等特点；可以在任意 js 环境下，包括【docsify / vuepress】文档类项目中使用；支持 Vue SFC / React SFC 单文件组件

Try Playwright lets you execute and share Playwright scripts in your browser to get started with Playwright.

A flexible playground for rendering Markdown and live editing React components.

Element Plus Playground