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Free AI Developer Tools

Browser-based tools for AI developers. No signup, no API key, no limits.

AI Token Counter & Cost Calculator

New

Estimate token count and API cost for GPT-4o, Claude, Gemini & 12+ models. Real-time pricing, context window usage.

AI API Cost Comparison

New

Compare API costs across 12+ LLMs side by side. Find the cheapest model, calculate monthly expenses, and optimize your AI budget.

AI Model Comparison

New

Compare context window, pricing, vision, function calling, and more across 10+ LLMs. Interactive side-by-side comparison table.

AI Prompt Optimizer

New

Reduce unnecessary tokens from your prompts. Detects filler words, verbose phrases, and repetitions. See cost savings per 1K requests.

AI Context Window Visualizer

New

Visualize context window sizes for 13+ AI models. Find which model fits your content size. Interactive bar chart comparison.

More tools coming soon: API Cost Comparison, Prompt Length Optimizer, Context Window Visualizer...