Free AI tools — LLM token counter, prompt cost estimator, context window visualizer, and AI prompt utilities.
QuickToolz AI Tools is a free toolkit for anyone building with large language models — engineers, prompt designers, researchers, and indie hackers. Count tokens, estimate prompt and completion costs, visualize context windows and throughput, and tune temperature and top-p with confidence.
LLM token counter — accurate token counts for GPT-4, GPT-4o, Claude, Gemini, and other major models
Prompt cost estimator — calculate USD cost per call across providers and model tiers
Tokens-per-second visualizer — see how generation speed feels in real time
Context window visualizer — understand 8k, 32k, 128k, 200k, and 1M context limits visually
System prompt builder — assemble production-ready system prompts with best-practice structure
Temperature & top-p explainer — interactive guide to sampling parameters
Latency budget calculator — design responsive AI UX by allocating per-step latency budgets
These tools help you ship better LLM products: keep costs predictable, fit prompts inside context windows, and design UX that respects token throughput and end-to-end latency.
Got questions? We’ve got answers. Common questions about AI Tools.