AI Tools Calculators & Tools
Token calculators, API pricing models, prompt formatters, and AI utility tools for LLM developers and creators. Built to run completely client-side in your browser for total privacy, zero data collection, and instant calculations.
Available AI Tools Tools
AI Token Calculator
Estimate token counts, context window consumption, and cost across GPT-5, GPT-4o, Claude 3.5, and Gemini 2.0.
OpenAI API Cost Calculator
Calculate monthly API bills across GPT-4o, GPT-4o-mini, o1, o3-mini, and text-embedding models.
Claude API Cost Calculator
Calculate Anthropic Claude 3.5 Sonnet, Claude 3 Opus, and Haiku API costs with prompt caching discounts.
Gemini API Cost Calculator
Calculate Google Gemini 1.5 Pro, Flash, and Gemini 2.0 API costs based on token throughput.
Prompt Token Counter
Count real-time tokens, words, and characters for your AI prompts with instant cost estimations.
Prompt Formatter
Structure and format LLM system prompts with XML tags, markdown headers, and variable placeholders.
Markdown Prompt Generator
Generate structured Markdown prompts with Role, Context, Constraints, and Few-shot examples.
AI Character Counter
Track character limits, word bounds, and context window percentages for AI chat inputs.
JSON Prompt Formatter
Format and validate structured JSON schemas for LLM function calling and JSON mode responses.
AI Prompt Cleaner
Strip boilerplate text, duplicate instructions, redundant white spaces, and optimize token efficiency.
Explore Other Categories
Finance & Loans
Calculate mortgage payments, loan rates, self-employment taxes, and interest compound growths.
Real Estate & Mortgage
Determine affordability, refinance benefits, and rental property yields.
Everyday / Life Utility
Secure, local random password generators, instant age calculations, and QR codes.
Developer Tools
Formatters, encoders, regex testers, and color converters built for developers.
Text & Content
Word counters, text diff comparers, case text converters, and content clean utilities.
Marketing & SEO
Optimize meta tags, analyze keyword densities, and generate redirects.
Health & Fitness
BMI calculators, caloric targets, macro splitters, and target heart rates.
Legal & Employment
Calculate payroll timelines, severance, overtime, and contract terms.
Education & Academics
GPA calculators, final grade planners, weighted grade solvers, and citation formatters.
Image & PDF Tools
Client-side image resizers, compressors, and PDF mergers. Fully private, no server uploads.
Startup & SaaS
MRR/ARR calculators, burn rate estimators, SaaS valuation tools, and subscription metrics.