APIs & developer tools
- Agent MemoryPersistent memory tooling for AI coding agents.
- BundlephobiaCheck JavaScript/npm package sizes.
- CarbonTurn source code into polished visual snippets.
- Code BeautifyFormat, validate, convert, and beautify code and structured data.
- ExplainShellBreak down and explain shell commands.
- GhosttyA terminal emulator with native interfaces and GPU-accelerated rendering for command-line work.
- HaystackExplore production AI applications using RAG, pipelines, agents, retrieval, and document processing.
- HTTPieAPI tools for sending HTTP requests and inspecting responses from the command line or an app.
- Hugging Face SpacesTry community-built AI and machine-learning demos.
- JSON FormatterFormat, validate, and inspect JSON data.
- JWT.ioDecode and inspect JSON Web Tokens.
- Kage ToolingCurated collection of tools for building and designing interfaces.
- LiteLLMLearn how applications can work across multiple LLM providers, APIs, and models.
- llama.cppExplore local LLM inference, quantization, CPU/GPU inference, optimization, and consumer hardware.
- LlamaIndexLearn RAG, ingestion, vector search, agents, knowledge bases, and document retrieval.
- MailDevOpen-source SMTP server and web interface for testing email during development.
- MastraAn open-source TypeScript framework for building AI agents and workflows, with memory, evaluations, tracing and deployment tooling.
- Mistral AIAI models, assistants and developer tools for building applications, automating work and coding.
- Mobbin MCPConnects AI coding tools to Mobbin so they can find real product screens and use them as design references.
- NVIDIA CUDACUDA documentation, developer resources, and GPU-computing learning materials from NVIDIA.
- ObservableExplore interactive data visualizations, notebooks, and data applications.
- Postico 2A PostgreSQL client for macOS with table browsing, data editing and SQL query tools.
- PostmanBuild, test, document, and explore APIs.
- ProxymanAn HTTP debugging proxy for inspecting requests and responses between applications and servers.
- Ray.soCreate attractive screenshots of code.
- Regex101Build, test, and debug regular expressions.
- RegExrBuild and test regular expressions.
- ReplicateRun and experiment with AI models online and through APIs.
- ReqBinSend HTTP requests online.
- Sitemaps.orgLearn how the sitemap protocol works.
- SourcegraphA code search tool for finding symbols, patterns and implementation details across repositories.
- TablePlusA graphical database client for browsing tables, editing records and running queries.
- vLLMExplore high-throughput LLM inference, serving, KV cache, distributed inference, and production APIs.