Live Tool
Cp / Cpk Calculator
Upload data, enter USL and LSL, and get capability metrics, a histogram, interpretation, and exportable result summary in one workflow.
Manufacturing & Statistics Tools
Free tools for process capability, DoE, and practical engineering work.
Use focused tools that help you evaluate capability, plan experiments, and move faster from diagnosis to improvement without opening a spreadsheet first.
No login
Fast setup
CSV export
Built for real manufacturing work
Live Tool
DoE Planner
Create orthogonal array or full factorial planning sheets, randomize run order, and export a clean experiment table for shop-floor or lab trials.
Pick the right tool
If you want to know whether a process can meet specification limits, start with the Cp / Cpk calculator. If you already know there is a problem and want to test process settings, move to the DoE planner.
Suggested workflow
Review process capability first, decide whether the issue is spread or centering, then plan a structured experiment to test the settings that may improve the process.
Coming next
This tool collection is designed to expand into other practical quality and manufacturing workflows such as control charts, MSA, and sample size planning.