QM Bench

For students, self-learners and new quality engineers

Learn quality engineering by doing

Simulations you can play with, quizzes with explanations and a free 8D course. Free, no sign-up, ready for your seminar paper or assignment.

Interactive

SPC simulator

A live process with X̄-R chart, histogram and Cpk. Inject tool wear, a new batch or a loose gauge and watch the charts react. Game: find the hidden cause.

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Interactive

Deming funnel experiment

Four adjustment rules side by side with the same random noise. See why tampering with a stable process increases variation.

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Course · 1 hour

8D Problem Solving Course

Nine lessons D0–D8 with one automotive case study, common mistakes and a check question in each lesson.

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Quizzes with certificate

SPC and process capability quiz

10 questions · explanations · certificate from 70 %

Measurement system analysis (MSA) quiz

10 questions · explanations · certificate from 70 %

8D problem solving quiz

10 questions · explanations · certificate from 70 %

For your seminar paper

  • • In-depth guides with worked case studies for every method.
  • • The glossary and reference tables (Cpk to PPM, AQL, control chart constants).
  • • Every tool creates a PDF report and PNG / SVG charts you can put into your paper.
  • • Load the sample data in any tool to get a complete worked example.

How to cite QM Bench

Blažek, Ľ. (2026). QM Bench: free quality engineering tools [Online software]. Available at: https://qmbench.com (Accessed: day month year).

Calculation methods follow AIAG SPC, AIAG MSA, ISO 22514 and ISO 2859-1; see the validation report.