For AI builders, developers & indie hackers
Build smarter with
practical AI tools
Free calculators, honest guides, and no-fluff tutorials for developers working with Claude, Gemini, local LLMs, and MCP.
Developer Tools
Free AI calculators
AI Token Calculator
FreeCount tokens for any model before sending a prompt. Supports Claude, GPT-4, Llama, and 20+ other models.
LLM Cost Calculator
FreeCalculate the exact cost of your LLM API calls. Compare providers and find the cheapest option for your use case.
Context Window Calculator
FreeVisualize how much context you have left. Plan your prompts around token limits without guessing.
VRAM Estimator
FreeEstimate GPU memory requirements for running local LLMs. Know before you download if your GPU can handle it.
Prompt Formatter
FreeFormat, clean, and convert prompts between different model formats. Supports ChatML, Llama, Mistral, and more.
In-Depth Guides
Latest guides
Choosing the Right LLM for Your Coding Workflow in 2026
A practical comparison guide for developers choosing between Claude, Gemini, GPT-4o, Llama 3, and local models. Covers task fit, cost, context length, and real benchmark results.
AI API Cost Optimization: Reduce Your Bill by 60% Without Sacrificing Quality
Proven techniques for cutting LLM API costs including prompt caching, batching, model routing, and smarter context management. With real cost calculations.
From the Blog
Latest articles
LLM Context Window Management: When Your AI Forgets Everything
Practical strategies for managing context windows in long coding sessions. Covers token budgeting, context distillation, and tool call optimization.
Gemini CLI for Developers: Beyond the Basics
Advanced usage patterns for Gemini CLI in real development workflows. Covers context injection, pipe chaining, scripting, and integrating with existing toolchains.
Build Your First MCP Server in 30 Minutes: Claude Tool Integration
A hands-on tutorial for building a custom Model Context Protocol server. Works with Claude Desktop, Claude Code, and any MCP-compatible client.
Resource Directory