Tools

Small tools, shipped in the open.

Calculators and planners that run in your browser. Inputs can be saved locally on this device - signed-in sync comes later.

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AI

Cost, prompts, structure, and evaluation for models in production.

AI cost calculator
Estimate monthly LLM spend from input/output token volume and rate card.
Hidden text scanner
Paste text, see odd whitespace and hidden characters, clean them in one click.