AI Utilities Tools
Free AI and LLM tools for developers. Count tokens for GPT-4, Claude, Gemini. Estimate API costs, trim prompts to fit context limits, and plan embeddings—all in your browser.
Token Counter
AI token counter online. Count tokens for GPT-4, Claude, Gemini and more. Character count and cost estimation—free LLM token calculator.
Token Visualizer
AI token visualizer online. See how AI models break text into tokens. Understand tokenization visually—free token boundary viewer.
Context Estimator
AI context window calculator online. Calculate tokens for prompts, system messages, chat history. Check remaining context—free tool.
Prompt Trimmer
AI prompt trimmer online. Trim text to fit token limits. Sentence-aware and paragraph-aware modes—reduce prompt length free.
Embedding Estimator
AI embedding calculator online. Estimate tokens and vector dimensions for embedding models. Plan vector DB storage—free embeddings tool.
Cost Estimator
AI API cost calculator online. Estimate costs for GPT-4, Claude, Gemini APIs. Input and output token pricing—free LLM cost tool.
Cost Compare
Compare AI API costs online. Estimate daily limits and monthly pricing across top LLM models like GPT-4o, Claude 3.5, Gemini, DeepSeek, and Kimi. Free LLM comparison grid.