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SimplicityHub® — Making Things Simple

Free Lean Six Sigma
Tools & Training.

Free Lean Six Sigma courses, 80+ templates and 25+ calculators — built for practitioners who want to apply, not just learn.

Start the free White Belt → Browse 80+ free templates →
★★★★★ 4.9/5 rated by our learners · CSSC accredited
What you can do here
Get started for freeTake the Lean Six Sigma White Belt course and earn a free certificate.
Download practical templatesUse ready-made templates for charters, SIPOC, 5 Whys, control plans and more.
Run improvement calculatorsUse free calculators for process, quality and Lean Six Sigma analysis.
Build confidence step by stepLearn the method, use the resource, then apply it to your own work.

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Rated 4.9/5 from verified customer reviews  ·  Pricing: free courses, or paid belts from £19 to £35

Rated 4.9/5 by verified learners

★★★★★

"Amazing course and a very clear lecture, cleared up all my doubts! Very helpful for my improvement work in the environment."

— Rajesh Dey

Verified learner

★★★★★

"Excellent course! Clear explanations, practical examples, and easy to understand. Thank you!"

— Pavan Shikre

Verified learner

★★★★★

"This process was easy to follow and retain information, especially with the videos to get a better understanding of each module."

— Ruth Ferguson

Verified learner

SimplicityHub Rewards Live Now
FreeWhite Belt course and certification 80+Templates and practical resources 25+Calculators for improvement work PracticalBuilt for real operations and CI teams 4.9/5Average course rating HundredsOf practitioners every week CSSCAccredited certification
Start here

What do you need right now?

New here? Start with the free White Belt — it's free and takes about 2 hours. Already working on a problem? Jump straight to templates or calculators.
1

Learn Lean Six Sigma

Begin with the free White Belt course, build the basics, and get a certificate when you complete it.

Start free course
2

Get a template

Download practical templates for problem solving, process mapping, root cause analysis, action tracking and control.

Browse templates
3

Run a calculation

Use free calculators for cycle time, capacity, DPMO, sigma level, Cpk, P-value, sample size and more.

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Free, no catch

What you get with SimplicityHub®

  • Free accredited courses — White Belt, Lean Foundation and Root Cause Analysis, with a real certificate on completion.
  • 25 free calculators — DPMO, Cp/Cpk, sigma level, sample size, cycle time and more.
  • 80 free templates — DMAIC, root cause analysis, process mapping and control plans.
  • Practitioner-built — created by a Master Black Belt and Lean Master with 10+ years in the field.

SimplicityHub® is a recognised training provider of the Council for Six Sigma Certification (CSSC). Our courses align with the widely-recognised Lean manufacturing and Six Sigma methodologies and the industry standards defined by bodies such as the American Society for Quality (ASQ).

Belt levels at a glance

Level Who it's for Price
White BeltComplete beginnersFree
Lean FoundationFirst step into LeanFree
Root Cause AnalysisSolving problems at the sourceFree
Yellow BeltSupporting improvement projects£25usually £110
Green BeltLeading DMAIC projects£25usually £185
Black BeltAdvanced / mentoring others£25usually £295
Lean AssociateLean practitioners starting out£25usually £95
Lean PractitionerRunning Lean improvements£25usually £165
Advanced Lean PractitionerLeading Lean transformation£25usually £265
Continuous Improvement FundamentalsBuilding a CI culture£19usually £119
AI for Quality ManagementApplying AI to quality & QM£35usually £135
Academy

Build skill, not just clicks

Use the Academy to move from awareness to capability. Start free, then progress into deeper Lean Six Sigma learning when you are ready.

Visit Academy Free White Belt
Free on YouTube

90+ videos. Learn before you commit.

Watch free Lean Six Sigma tutorials, DMAIC walkthroughs and tool explanations on YouTube — then start the free White Belt course when you're ready to get certified.

Watch free videos Start White Belt
What's here

Everything you need to improve processes.

Free tools, templates and training built for practitioners — not textbooks. Everything here is designed for real operations teams and CI practitioners.

Lean Six Sigma Academy

White, Yellow, Green and Black Belt certifications. Start free, progress at your own pace. CSSC accredited.

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80+ Free Templates

Ready-made templates with completed examples — SIPOC, 5 Whys, charters, control plans and more.

Browse templates

25+ Free Calculators

Run calculations in your browser — sigma level, cycle time, Cpk, DPMO, sample size and more. No sign-up.

Use calculators
Learn the Basics

Continuous Improvement Guides

Start your journey with our jargon-free explanations of the core concepts, methodologies, and tools used in Lean Six Sigma.

What is Lean Six Sigma?

A complete, plain-language guide to the methodology used to eliminate waste and improve quality.

What is DMAIC?

The five-step framework (Define, Measure, Analyse, Improve, Control) that forms the backbone of any project.

What is a SIPOC Diagram?

A straightforward guide to mapping your processes from start to finish with real-life examples.

Root Cause Analysis

Stop fixing symptoms. Learn how to use the 5 Whys and Fishbone diagrams effectively.

How to Improve Processes

A practical, step-by-step framework to identify inefficiencies and eliminate waste at work.

LSS for Beginners

A completely jargon-free introduction to Lean Six Sigma and its career benefits.
From the Blog

Practical Lean & Six Sigma Guides

View all articles →
DMAIC

DMAIC vs PDCA: How to Choose the Right Continuous Improvement Method

Two classic improvement cycles compared head-to-head so you can pick the right one for your project.
Lean Manufacturing

Lean Six Sigma for Small Manufacturing: Step-by-Step Survival Guide

A realistic starting point for SMEs who don't have a dedicated quality department.
Process Control

How to Read a Control Chart: P-Chart, I-Chart, and When to Use Each

Clear, practical guidance on interpreting control charts and knowing which type to use.
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Free Report

State of Lean Six Sigma in the UK 2026

Adoption rates, salary data, belt-level trends and where the industry is heading — all in one free report.

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2026
UK Report