Building AI-powered applications requires a diverse set of tools, frameworks, and resources to handle everything from model selection to deployment. Whether you're crafting conversational agents, fine-tuning models, or building full-stack AI apps, this comprehensive toolkit has you covered. Explore the best-in-class options across every category to bring your AI projects to life.
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Below is a curated list of tools and resources categorized by their use cases. Each entry includes cost details, key use cases, and links to official documentation or example code.
| Category | Tool Name | Cost Model | Use Case | Link |
|---|---|---|---|---|
| 😎 Model Providers | ||||
| OpenAI API | Paid API | GPT models | OpenAI | |
| Grok (xAI) | Paid API | Human-like reasoning for complex queries | Grok | |
| Google Gemini | Paid API | Multimodal AI for text and images | Gemini | |
| Hugging Face | Freemium | Open-source models and hosted inference | Hugging Face | |
| Anthropic Claude | Paid API | Safe, interpretable language models | Claude | |
| DeepSeek | Paid API | Specialized models for coding and reasoning | DeepSeek | |
| Together AI | Paid API | Unified API for open-weight models | Together AI | |
| OpenRouter | Paid API | Multi-provider model aggregation | OpenRouter | |
| Mistral AI | Paid API | High-performance open-weight models | Mistral AI | |
| LLaMA (Meta) | Open Source | State-of-the-art open-source LLMs | LLaMA | |
| AWS Bedrock | Paid API | Hosted models for enterprises | AWS Bedrock | |
| NVIDIA NeMo | Paid API | Enterprise-grade AI models | NVIDIA NeMo | |
| ⚙️ Backend | ||||
| FastAPI | Open Source | Fast, modern Python APIs | FastAPI | |
| Flask | Open Source | Lightweight web apps and APIs | Flask | |
| Node.js (Express) | Open Source | Scalable backend with JavaScript | Express | |
| NestJS | Open Source | Modular backend with TypeScript | NestJS | |
| AdonisJS | Open Source | Full-stack Node.js framework | AdonisJS | |
| Fiber | Open Source | High-performance Go web framework | Fiber | |
| Rocket | Open Source | Web framework for Rust | Rocket | |
| Actix | Open Source | Actor-based framework for Rust | Actix | |
| Gin | Open Source | HTTP web framework for Go | Gin | |
| Echo | Open Source | Minimalist web framework for Go | Echo | |
| 💻 Frontend | ||||
| React | Open Source | Component-based JavaScript library | React | |
| Vue.js | Open Source | Progressive JavaScript framework | Vue.js | |
| Angular | Open Source | Full-featured JavaScript framework | Angular | |
| Svelte | Open Source | Lightweight JavaScript framework | Svelte | |
| Next.js | Open Source | React with SSR and built-in API routes | Next.js | |
| Nuxt.js | Open Source | Vue.js with server-side rendering | Nuxt.js | |
| SolidJS | Open Source | Fine-grained reactivity framework | SolidJS | |
| Astro | Open Source | Modern static site generator | Astro | |
| Ember.js | Open Source | Ambitious web applications framework | Ember.js | |
| Preact | Open Source | Lightweight alternative to React | Preact | |
| 🎈 Fullstack | ||||
| Meteor | Open Source | Full-stack JavaScript framework | Meteor | |
| Remix | Open Source | Web-first full-stack framework | Remix | |
| RedwoodJS | Open Source | Full-stack framework for JAMstack apps | RedwoodJS | |
| Blitz.js | Open Source | Full-stack React framework | Blitz.js | |
| SolidStart | Open Source | Full-stack framework with Solid.js | SolidStart | |
| Fresh | Open Source | Next-gen web framework for Deno | Fresh | |
| HTMX | Open Source | Dynamic HTML with minimal JavaScript | HTMX | |
| Phoenix | Open Source | Full-stack Elixir framework | Phoenix | |
| Laravel Breeze | Open Source | Lightweight Laravel full-stack starter | Laravel Breeze | |
| Spring Boot (Java) | Open Source | Java-based full-stack framework | Spring Boot | |
| 📀 Databases | ||||
| Supabase | Freemium | Open-source Firebase alternative | Supabase | |
| PostgreSQL | Open Source | Reliable relational database | PostgreSQL | |
| MongoDB | Open Source | Flexible NoSQL for unstructured data | MongoDB | |
| SQLite | Open Source | Lightweight, serverless database | SQLite | |
| MySQL | Open Source | Popular relational database | MySQL | |
| MariaDB | Open Source | Enhanced drop-in replacement for MySQL | MariaDB | |
| Redis | Open Source | In-memory key-value store | Redis | |
| Cassandra | Open Source | Distributed NoSQL database | Cassandra | |
| CockroachDB | Freemium | Scalable SQL database | CockroachDB | |
| FaunaDB | Paid API | Serverless cloud database | FaunaDB | |
| 🔢 Vector Databases | ||||
| ChromaDB | Open Source | Simple vector store for embeddings | ChromaDB | |
| Pinecone | Paid API | Scalable, hosted vector search | Pinecone | |
| Weaviate | Open Source | GraphQL-based vector database | Weaviate | |
| Qdrant | Open Source | High-performance vector search | Qdrant | |
| Milvus | Open Source | Cloud-native vector database | Milvus | |
| Vespa | Open Source | Vector and document search engine | Vespa | |
| Elasticsearch | Open Source | Search and analytics engine | Elasticsearch | |
| LanceDB | Open Source | High-performance vector database | LanceDB | |
| Vald | Open Source | Highly scalable vector search engine | Vald | |
| 📻 Fine-tuning | ||||
| Unsloth | Open Source | Efficient fine-tuning for LLMs | Unsloth | |
| OpenAI Fine-Tuning | Paid API | Customize GPT models for your needs | OpenAI Fine-Tuning | |
| Hugging Face Trainer | Open Source | Fine-tune transformers easily | Hugging Face Trainer | |
| Ludwig | Open Source | Declarative fine-tuning for ML models | Ludwig | |
| PyTorch Lightning | Open Source | Structured fine-tuning with PyTorch | PyTorch Lightning | |
| TensorFlow Extended (TFX) | Open Source | End-to-end ML pipeline for fine-tuning | TFX | |
| AutoTrain | Open Source | Automated fine-tuning with Hugging Face | AutoTrain | |
| Ray Tune | Open Source | Hyperparameter tuning for fine-tuning | Ray Tune | |
| Optuna | Open Source | Hyperparameter optimization | Optuna | |
| ClearML | Open Source | Experiment tracking for fine-tuning | ClearML | |
| 🤖 Agent Development | ||||
| LangGraph | Open Source | Stateful agents with LangChain | LangGraph | |
| Griptape | Open Source | Framework for building AI agents | Griptape | |
| SmolAgent | Open Source | Lightweight AI agent framework | SmolAgent | |
| Ailice | Open Source | AI agent orchestration framework | Ailice | |
| Agno | Open Source | AI-driven agent development | Agno | |
| AG2 (AgentGraph) | Open Source | Multi-agent orchestrators | AG2 | |
| CrewAI | Open Source | Multi-agent workflows for automation | CrewAI | |
| AutoGen | Open Source | Conversational agents with flexibility | AutoGen | |
| BabyAGI | Open Source | Autonomous task-solving agents | BabyAGI | |
| MetaGPT | Open Source | Multi-agent system for software engineering | MetaGPT | |
| AgentScope | Open Source | Framework for multi-agent systems | AgentScope | |
| Langroid | Open Source | Agents for reasoning and planning | Langroid | |
| 🕸️ Web Data Access | ||||
| Firecrawl | Freemium | Web scraping with caching | Firecrawl | |
| Jina AI Reader API | Freemium | Extract structured data from web pages | Jina AI | |
| Puppeteer | Open Source | Dynamic content scraping via browser | Puppeteer | |
| Scrapy | Open Source | Powerful web crawling framework | Scrapy | |
| Beautiful Soup | Open Source | HTML parsing and web scraping | Beautiful Soup | |
| Cheerio | Open Source | jQuery-like HTML parsing for Node.js | Cheerio | |
| Selenium | Open Source | Browser automation for web scraping | Selenium | |
| Playwright | Open Source | Browser automation for testing and scraping | Playwright | |
| Diffbot | Paid API | Extract structured data from websites | Diffbot | |
| Crawl4AI | Open Source | AI-powered web crawling and scraping | Crawl4AI | |
| ### AI Code Builders | ||||
| Cursor | Freemium | AI-powered code editor | Cursor | |
| Windsurf | Open Source | Collaborative AI coding environment | Windsurf | |
| Aider | Open Source | AI-driven pair programming assistant | Aider | |
| Cline | Open Source | CLI-based AI coding assistant | Cline | |
| Roo Code | Paid API | AI-driven code generation and refactoring | Roo Code | |
| Trae | Open Source | AI-powered codebase navigation | Trae | |
| Tabnine | Freemium | AI-powered code completion tool | Tabnine | |
| GitHub Copilot | Paid API | AI pair programmer | GitHub Copilot | |
| Codeium | Freemium | AI-powered coding assistant | Codeium | |
| Mutable AI | Paid API | AI-driven code editing and debugging | Mutable AI | |
| ### Online Code/Artifact Generators | ||||
| Bolt.new | Freemium | Generate code snippets and templates | Bolt.new | |
| Bolt.diy | Freemium | DIY code and artifact generator | Bolt.diy | |
| LlamaCoder | Open Source | AI-powered code generation | LlamaCoder | |
| Grok Code Assistant | Paid API | AI-driven code generation and optimization | Grok Code | |
| Deepseek Artifacts | Paid API | Generate code and artifacts for developers | Deepseek Artifacts | |
| CodePal | Freemium | AI-powered code snippet generator | CodePal | |
| CodeWP | Paid API | Generate WordPress code and plugins | CodeWP | |
| Framer Code | Paid API | Generate UI components and code | Framer Code | |
| Magic Erase | Freemium | Remove code errors and optimize scripts | Magic Erase | |
| AI21 Studio | Paid API | Generate code and text-based artifacts | AI21 Studio | |
| 💬 Chatbot Frameworks | ||||
| Chainlit | Open Source | Build conversational interfaces | Chainlit | |
| Botpress | Open Source | Open-source chatbot development | Botpress | |
| Rasa | Open Source | Conversational AI framework | Rasa | |
| Dialogflow | Paid API | Build conversational agents with Google | Dialogflow | |
| Microsoft Bot Framework | Open Source | Build enterprise-grade bots | Bot Framework | |
| Tidio | Paid API | Live chat and chatbot integration | Tidio | |
| ManyChat | Paid API | Chatbot builder for Facebook Messenger | ManyChat | |
| Landbot | Paid API | No-code chatbot builder | Landbot | |
| HubSpot Chatbot Builder | Paid API | Chatbots for marketing and sales | HubSpot | |
| MobileMonkey | Paid API | Chatbot builder for messaging platforms | MobileMonkey | |
| 🎨 UI/UX Resources | ||||
| Material UI | Open Source | React UI components | Material UI | |
| Shadcn | Open Source | Tailwind CSS components | Shadcn | |
| Clerk | Freemium | Authentication and user management | Clerk | |
| 21st.dev | Open Source | Modern UI components for web apps | 21st.dev | |
| Chakra UI | Open Source | Simple, modular React UI components | Chakra UI | |
| Ant Design | Open Source | Enterprise-grade React UI library | Ant Design | |
| Tailwind CSS | Open Source | Utility-first CSS framework | Tailwind CSS | |
| DaisyUI | Open Source | Tailwind CSS component library | DaisyUI | |
| Headless UI | Open Source | Unstyled UI components for React | Headless UI | |
| PrimeReact | Open Source | Rich UI components for React | PrimeReact | |
| ⚡ Real-Time Interaction | ||||
| FastRTC | Open Source | Real-time communication framework | FastRTC | |
| Socket.IO | Open Source | Real-time event-based communication | Socket.IO | |
| Agora | Paid API | Real-time voice and video SDK | Agora | |
| Twilio | Paid API | Real-time communication APIs | Twilio | |
| PubNub | Paid API | Real-time messaging and data streaming | PubNub | |
| Pusher | Paid API | Real-time APIs for web and mobile apps | Pusher | |
| SignalWire | Paid API | Cloud communications platform | SignalWire | |
| Ably | Paid API | Real-time messaging infrastructure | Ably | |
| Firebase Realtime DB | Freemium | Real-time NoSQL database | Firebase RTDB | |
| Deepstream | Open Source | Real-time data synchronization | Deepstream | |
| 🤔 Evaluation Frameworks | ||||
| RAGAS | Open Source | Evaluate RAG pipelines | RAGAS | |
| DeepEval | Open Source | Custom metrics for LLM evaluation | DeepEval | |
| LangSmith | Freemium | Debug and evaluate LLM apps | LangSmith | |
| TruLens | Open Source | Ground truth evaluation for LLMs | TruLens | |
| Evaluator | Open Source | Evaluate LLM outputs programmatically | Evaluator | |
| LLM Judge | Open Source | Judge LLM responses against criteria | LLM Judge | |
| PromptBench | Open Source | Benchmark prompts and LLM performance | PromptBench | |
| ARES | Open Source | Robustness evaluation for AI systems | ARES | |
| CheckList | Open Source | Behavioral testing for NLP models | CheckList | |
| 📊 Monitoring & Logging | ||||
| LangSmith | Freemium | Monitor and trace LLM applications | LangSmith | |
| Sentry | Freemium | Real-time error tracking | Sentry | |
| Prometheus | Open Source | Metrics and alerting for systems | Prometheus | |
| Grafana | Open Source | Visualize logs and metrics | Grafana | |
| Datadog | Paid API | Monitoring and observability platform | Datadog | |
| New Relic | Paid API | Application performance monitoring | New Relic | |
| Logstash | Open Source | Centralized logging pipeline | Logstash | |
| Fluentd | Open Source | Unified logging layer | Fluentd | |
| Splunk | Paid API | Log analysis and monitoring | Splunk | |
| ELK Stack | Open Source | Elasticsearch, Logstash, Kibana | ELK Stack | |
| 🔊 Audio | ||||
| Whisper (OpenAI) | Open Source | High-accuracy speech-to-text | Whisper | |
| DeepSpeech | Open Source | End-to-end speech recognition | DeepSpeech | |
| Coqui TTS | Open Source | Text-to-speech with diverse voices | Coqui TTS | |
| SpeechBrain | Open Source | All-in-one audio processing toolkit | SpeechBrain | |
| Wav2Vec2 | Open Source | Pre-trained speech models | Wav2Vec2 | |
| Tacotron 2 | Open Source | Neural text-to-speech synthesis | Tacotron 2 | |
| WaveNet | Open Source | High-quality waveform synthesis | WaveNet | |
| Librosa | Open Source | Audio analysis and processing | Librosa | |
| Essentia | Open Source | Audio feature extraction | Essentia | |
| SonicAPI | Paid API | Audio processing and transcription | SonicAPI | |
| 👀 Vision | ||||
| YOLO | Open Source | Real-time object detection | YOLO | |
| OpenCV | Open Source | Versatile computer vision library | OpenCV | |
| Detectron2 | Open Source | Advanced detection and segmentation | Detectron2 | |
| CLIP (OpenAI) | Open Source | Image-text understanding and search | CLIP | |
| Mediapipe | Open Source | Real-time vision and multimodal AI | Mediapipe | |
| Tesseract OCR | Open Source | Optical character recognition | Tesseract OCR | |
| AllenAI OLMOCR | Open Source | OCR for scientific documents | OLMOCR | |
| Albumentations | Open Source | Image augmentation for deep learning | Albumentations | |
| Imagenet | Open Source | Large-scale image dataset | Imagenet | |
| SegFormer | Open Source | Semantic segmentation with transformers | SegFormer | |
| StyleGAN | Open Source | Generative adversarial networks for images | StyleGAN | |
| 🚀 Deployment Tools | ||||
| Vercel | Freemium | Deploy full-stack apps with ease | Vercel | |
| Docker | Open Source | Containerize apps for consistent deployment | Docker | |
| Kubernetes | Open Source | Orchestrate and scale containerized apps | Kubernetes | |
| Heroku | Freemium | Quick deployment for prototypes and MVPs | Heroku | |
| AWS Lambda | Paid API | Serverless deployment for functions | AWS Lambda | |
| Google Cloud Run | Paid API | Deploy containerized apps on Google Cloud | Cloud Run | |
| Azure Functions | Paid API | Serverless compute on Microsoft Azure | Azure Functions | |
| Render | Freemium | Simple app hosting and deployment | Render | |
| Netlify | Freemium | Deploy static sites and frontend apps | Netlify | |
| Fly.io | Freemium | Global app deployment with edge computing | Fly.io | |
| Fast | ||||
| FastEmbed | Open Source | Fast embedding generation for vector search | FastEmbed | |
| FastVideo | Open Source | High-speed video processing | FastVideo | |
| FastAPI Pagination | Open Source | Pagination utilities for FastAPI | FastAPI Pagination | |
| FastRTC | Open Source | Real-time communication framework | FastRTC | |
| FastAPI Backend Template | Open Source | Starter template for FastAPI backends | FastAPI Backend Template | |
| FastStream | Open Source | Stream processing with FastAPI | FastStream | |
| FastAPI Code Generator | Open Source | Generate FastAPI apps from OpenAPI specs | FastAPI Code Generator | |
| FastAPI Template | Open Source | Opinionated FastAPI project template | FastAPI Template | |
| FastAPI Azure Auth | Open Source | Azure authentication for FastAPI | FastAPI Azure Auth | |
| FastAPI Cache | Open Source | Caching utilities for FastAPI | FastAPI Cache | |
| Fastplotlib | Open Source | High-performance plotting library | Fastplotlib | |
| FastAnime | Open Source | AI-driven anime video generation | FastAnime | |
| FastAgency | Open Source | Build and deploy AI agents quickly | FastAgency | |
| Fast-LLM | Open Source | Optimized inference for large language models | Fast-LLM | |
| Fast GraphRAG | Open Source | Rapid graph-based RAG pipelines | Fast GraphRAG | |
| FastAPI Utils | Open Source | Utility tools for FastAPI development | FastAPI Utils | |
| FasterLivePortrait | Open Source | Real-time portrait animation | FasterLivePortrait | |
| FastSDCPU | Open Source | Stable Diffusion on CPU | FastSDCPU | |
| FastFeedParser | Open Source | High-speed RSS feed parsing | FastFeedParser | |
| FastMRI | Open Source | Accelerated MRI reconstruction | FastMRI | |
| FastRAG | Open Source | Optimized retrieval-augmented generation | FastRAG | |
| FastMCP | Open Source | Fast Markov Chain Monte Carlo simulations | FastMCP | |
| FastAPI Mail | Open Source | Email sending utilities for FastAPI | FastAPI Mail | |
| FastAPI Auth0 | Open Source | Auth0 integration for FastAPI | FastAPI Auth0 | |
| Faster Whisper GUI | Open Source | Faster transcription with Whisper | Faster Whisper GUI |