The tools we trust. And why.

React The baseline for production web apps. Server components, deep ecosystem, team-wide fluency.

Next.js Routing, caching, and server components wired right out of the box. Right default for most apps.

TypeScript Every build is typed. Catches whole classes of bugs before runtime and makes refactors safer.

Astro Content-first pages that ship minimal JS. Islands architecture where interactivity is needed.

Vite Fast dev server and build pipeline. Where speed of iteration matters more than a full framework.

TanStack Query, Router, Table, the typed primitives we reach for when the app gets state-heavy.

Node.js Mature ecosystem, great primitives for I/O-bound services, and the language we share with the frontend.

Bun Faster JS runtime with a batteries-included toolkit, install, bundle, test, in one binary.

Hono Tiny, fast web framework for edge runtimes and Bun. Great for APIs that need to be close to the user.

NestJS Opinionated, modular Node framework for larger services where structure and DI pay off.

Express The minimal, no-ceremony choice when all we need is a small HTTP layer.

GraphQL Strongly typed API contract when the client needs fine-grained control over the response shape.

Python Default for AI, data, and ML workloads, rich scientific stack and mature tooling.

Go When latency and throughput matter. Strong concurrency primitives, minimal runtime.

OpenAI GPT-4 class models for production features, robust function calling, structured output, solid latency.

Anthropic Claude for reasoning-heavy, agentic, and long-context workloads.

Gemini Google Gemini for multi-modal tasks and tight integration with Google Cloud tooling.

Groq Ultra-low-latency LLM inference when response time is the UX.

Mistral Open-weight and hosted models when we need cost-performance control.

Hugging Face Open-source model hub, datasets, and inference endpoints for research-grade AI.

Cohere High-quality embeddings and rerankers for retrieval, a strong default for RAG quality.

Replicate Run open-source models on demand without operating GPUs ourselves.

LangChain For chaining LLM calls, tool use, and memory when we need a well-trodden abstraction.

LangGraph Graph-based agent flows with proper state, checkpoints, and human-in-the-loop.

LlamaIndex Retrieval pipelines, indexing, and data-aware LLM apps.

CrewAI Coordinating multiple specialised agents on a shared goal.

Vercel AI SDK Typed React / Node helpers for streaming, tool calls, and chat UIs in Next.js apps.

Pinecone Managed vector store for retrieval-augmented generation and semantic search at scale.

Qdrant Self-hostable vector search when data has to stay inside your infrastructure.

Chroma Embedded-first vector store for lightweight RAG prototypes and small corpora.

Ollama Running models locally for privacy-sensitive workloads and dev-time iteration.

LangSmith Tracing, evaluation, and debugging for LLM apps in production.

Langfuse Self-hostable alternative for LLM tracing and evals when data residency matters.

PyTorch When a task truly needs a custom-trained or fine-tuned model, not a prompt.

PostgreSQL Battle-tested, feature-rich, right for most business applications.

Drizzle Typed SQL in TypeScript, edge-runtime friendly, no hidden query magic.

MongoDB For unstructured or rapidly evolving data schemas.

Redis Caching, session management, and real-time pub/sub. Keeps apps fast under load.

Supabase Postgres with auth, storage, and real-time built in. Accelerates smaller teams.

AWS Default cloud for larger deployments. Deep service catalogue, proven reliability.

Google Cloud Where AI and data workloads benefit from native tooling (Vertex, BigQuery).

Docker Consistent environments from dev to prod. The packaging baseline.

Kubernetes Orchestration at scale, only when the complexity actually earns its keep.

Vercel The fastest path to production for Next.js and static apps. Great DX.

GitHub Actions Automated testing and deployment pipelines on every project, no exceptions.

Make Visual automation workflows where custom code is overkill.

Zapier Wide app coverage for quick, reliable glue between SaaS tools.

n8n When automations need to stay inside your infrastructure.

HubSpot For full-funnel CRM integrations and lifecycle marketing.

Salesforce Enterprise sales stacks and custom Salesforce API work.

Stripe Recurring billing, invoicing, and global payment flows.

Razorpay UPI, cards, and India-first payment flows with clean APIs.

Twilio SMS, voice, and programmable messaging at scale.

WhatsApp Business Customer conversations where WhatsApp is the primary channel.