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LangSmith
Deoit.js.orgLangSmith is recommended for AI developers, machine learning engineers, and businesses aiming to build, test, and optimize applications based on language models. It is particularly useful for teams that require robust evaluation tools and a streamlined process for managing and deploying language-driven applications.
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Langfuse - Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.
CodePen - A front end web development playground.
Helicone AI - Open-source LLM Observability for Developers
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
LangChain - Framework for building applications with LLMs through composability
StackBlitz - Online VS Code Editor for Angular and React