AI Tools Calculators
Work smarter with AI. Estimate what your API calls cost, build structured prompts with drag and drop, split long documents into model-ready chunks, and design JSON schemas for structured outputs — all free, all in your browser.
Token Cost Calculator
Know what your AI bill will be before the invoice arrives. Estimate tokens from your prompt text, price one request plus daily and monthly volume, and compare all major models on the same workload — entirely in your browser.
Prompt Builder
Stop wrestling with one giant text box. Assemble prompts from draggable building blocks — role, context, task, examples, rules, output format — preview the result live, and copy it anywhere.
AI Text Chunker
Long documents do not fit in AI context windows — split them smartly. Chunk by tokens, characters or sentences with overlap that preserves meaning, then preview, copy or download every piece.
JSON Schema Builder
Design bulletproof JSON contracts without hand-writing a bracket. Add fields visually, nest objects, constrain values with enums, validate samples with precise errors, and copy the schema anywhere.