Free Online Tools for Quality & Automotive Engineering

Welcome to Sigma Exacta, your suite of professional-grade tools for Cpk, FMEA, DOE, and effective problem-solving. Ideal for both professional work and educational purposes. Master quality engineering with instant access and no signup required.

Sigma Exacta provides specialized calculators and analysis tools for automotive and quality engineers to streamline their workflow. Improve product quality with our suite, 100% free to use with no registration required. All tools allow exporting results to Excel for easy reporting and documentation.

Process Capability (Cpk) Calculator

Calculate process capability indices (Cpk) with detailed statistical analysis and visualizations to assess your manufacturing process performance. Export results to Excel with one click.

Tolerance Stack-up Analysis

Perform tolerance stack-up analysis using arithmetic, probabilistic, and Monte Carlo methods for accurate dimensional chain calculations. Save complete reports in Excel format.

Weibull Analysis

Analyze time-to-failure data for reliability prediction. Calculate Beta (β) and Eta (η) to understand failure modes and optimize maintenance.

Robust Design (Taguchi Method)

Optimize products and processes using the Taguchi Method for robust design. Includes orthogonal arrays and signal-to-noise ratio analysis.

FMEA for Problem Prevention

Perform Failure Mode and Effects Analysis to proactively identify and mitigate potential failures in systems and components. Export complete reports to Excel.

Cause and Effect (Ishikawa) Diagram

Create Fishbone diagrams to visually analyze and solve root causes of problems across multiple categories (6Ms). Export diagrams for documentation and presentations.

8D Problem-Solving Report

Structured problem-solving methodology with 8 disciplines to identify, correct, and eliminate recurring problems. Complete form with all 8D steps.

PDCA Cycle (Deming Wheel)

Implement continuous improvement using the Plan-Do-Check-Act cycle. A structured, iterative method for managing processes and solving problems.

Design Thinking Facilitator

A human-centered, iterative process for innovation. Use the five phases (Empathize, Define, Ideate, Prototype, Test) to solve complex problems.

Inventive Problem Solving (TRIZ)

Use the TRIZ methodology to systematically solve engineering problems with inventive principles and contradiction matrix tools.

QFD (House of Quality) Builder

Quality Function Deployment tool to translate customer requirements into technical specifications with relationship matrix and prioritization.

Kano Model Analysis

Classify product features to understand their impact on customer satisfaction. Prioritize your roadmap by distinguishing must-haves from delighters.

VAVE (Value Analysis / Engineering)

Value Analysis and Value Engineering tool to evaluate product functions, costs, and value scores to identify improvement opportunities.

Interactive Control Plan Creator

Create dynamic manufacturing control plans to detail how processes and products are monitored for quality. Fully interactive and exportable.

Project Planner (APQP & PPAP)

Plan and track APQP phases and PPAP elements using dynamic forms and Gantt charts. Export to Excel for documentation and follow-up.

Strategic Performance Scorecard

Develop a strategic management dashboard with financial, customer, internal, and learning perspectives to track performance.

SWOT Analysis Matrix

Analyze Strengths, Weaknesses, Opportunities, and Threats in a dynamic matrix for strategic planning and decision-making.

Organizational Maturity Assessment

Assess your organization's maturity level using a framework inspired by established business excellence models like the EFQM model.

Urgent-Important Matrix (Eisenhower)

Classify and manage tasks by urgency and importance using a visual quadrant system. Export tasks to Excel for productivity tracking.

Tool Documentation & Guides

Access detailed documentation and tutorials for all our tools. Learn how to get the most out of Sigma Exacta's features and capabilities.

Contact & Support

Have questions or feedback? Contact our team directly for support or suggestions to improve our tools.