Skip to main content
HomeSoftwareTemplatesCalculatorsAcademyVideosAboutContactRewardsBlogsPricing
SimplicityHub® — Making Things Simple

Free Lean Six Sigma
Tools & Training.

Free Lean Six Sigma courses, 100+ templates and 25+ calculators — built for practitioners who want to apply, not just learn.

Structured self-paced learning with guided tools, worked examples, AI coach support and practical templates — built for professionals who need flexibility without working everything out alone.

Start the free White Belt →Browse 100+ free templates →
★★★★★4.9/5rated by our learners · CSSC accredited
What you can do here
Get started for free. Take the Lean Six Sigma White Belt course and earn a free certificate.
Download practical templates. Use ready-made templates for charters, SIPOC, 5 Whys, control plans and more.
Run improvement calculators. Use free calculators for process, quality and Lean Six Sigma analysis.
Build confidence step by step. Learn the method, use the resource, then apply it to your own work.
Why SimplicityHub?

CSSC-accredited certification and practitioner-built resources from a Master Black Belt with over 10 years of experience.

Trusted by

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

Support built in

What you get instead of a live instructor

Self-paced does not mean unsupported. The guidance, practice and checkpoints are built into the course, with a human answer available by email when a question needs one.

  • Step-by-step short modules with assessment checkpoints after each one
  • AI coach available throughout every course for questions and guidance
  • Practical templates and calculators embedded inside every lesson
  • Worked examples showing each tool used on a real improvement project
  • Human tutor support by email for questions that go beyond the AI coach
  • Unlimited exam retakes with no time limit or penalty
Grab what you need

Free resources

Free Lean Six Sigma certificationFree Lean Six Sigma certificationFree Lean Six Sigma certification
Courses
Free Lean Six Sigma templates
Templates
Free Lean Six Sigma calculators and tools
Tools
SimplicityHub blog articles
Blogs
SimplicityHub free video lessons
Videos
Lean Six Sigma industry reports
Industry Reports
SimplicityHub newsletter signup
Newsletter
Daily Improvement Reel with practical Lean Six Sigma tips and calculators
Daily Improvement Reel
Purchase

Affordable paid resources

Lean Six Sigma Yellow Belt certification courseLean Six Sigma Green Belt certification courseLean Six Sigma Black Belt certification courseAI for Quality Management Practitioner certificationContinuous Improvement Fundamentals certificationLean Advanced Practitioner certificationLean Practitioner certificationLean Associate certification
Courses
Ultimate DMAIC Playbook book cover
DMAIC Book
Ultimate Lean Playbook book cover
LEAN Book
Premium Lean Six Sigma template packs
Template Packs
Advanced Statistical Tools pack
Advanced Stats Pack
Used in real improvement work

Case study: when a machine fault wasn’t a machine fault

Joe Campbell, Operations Manager, used SimplicityHub’s Green Belt toolkit — including 16 templates and 4 calculators — to investigate recurring labelling-machine jams. The team traced the root cause to a damp floor and an unmanaged mop rota rather than a failed machine part. Moving the rota and stopping the door-propping fixed the problem at no cost, and the machine has not jammed since.

Read the full case study →
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.

Free, no catch

What you get with SimplicityHub®

1

Free courses - White Belt (CSSC Accredited)

Lean Foundation and Root Cause Analysis, with a real certificate and LinkedIn badge on completion.

2

Free Resources - Practitioner built

80 templates with completed examples, 25 calculators with simulations, 350+ YouTube videos with over 2.5M+ views, Blogs, Industry report, real learner case study and more.

3

CI with AI

Chat agent & AI tool finder to get you started.

Trusted Accreditation

SimplicityHub courses at a glance

Council for Six Sigma Certification (CSSC) seal

SimplicityHub® is an accredited 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).

Which is better — CSSC, ASQ or IASSC?

Belt levels at a glance
Free courses£0 · ALWAYS

Free means free — the full course and the certificate, with no upsell.

CourseWho it's forPrice
White BeltComplete beginnersFreeStart free →
Lean FoundationFirst step into LeanFreeStart free →
Root Cause AnalysisSolving problems at the sourceFreeStart free →
Lean Six Sigma belt certifications£25 EACH

CSSC-accredited belt certifications — flat £25 each, whichever level you need.

CertificationWho it's forPrice
Yellow BeltSupporting improvement projects£25
Green BeltLeading DMAIC projects£25
Black BeltAdvanced / mentoring others£25
Lean AssociateLean practitioners starting out£25
Lean PractitionerRunning Lean improvements£25
Advanced Lean PractitionerLeading Lean transformation£25
Specialist courses

Focused, in-demand skills beyond the core belts.

CourseWho it's forPrice
Continuous Improvement FundamentalsBuilding a CI culture£19
AI for Quality ManagementApplying AI to quality & QM£35
From the Blog

Practical Lean & Six Sigma Guides

View all articles →
Who uses SimplicityHub?

Lean Six Sigma across UK industries

The same improvement principles adapt to different operational settings. Explore practical starting points for healthcare and financial services teams.

Lean Six Sigma in healthcareLean Six Sigma in financial servicesUK 2026 industry report

Common questions

What is SimplicityHub?

SimplicityHub® is a UK-based online training provider offering Lean, Six Sigma and Continuous Improvement courses. It is an accredited training provider for the Council for Six Sigma Certification (CSSC), based in Gainsborough, Lincolnshire, and founded in 2026.

How much does SimplicityHub cost?

Entry-level courses are free (White Belt, Lean Foundation, Root Cause Analysis). Continuous Improvement Fundamentals is £19, the six Lean/Lean Six Sigma belts are £25 each, and Applying AI to Quality Management is £35. Every course includes the certificate at no extra cost.

Are SimplicityHub certificates accredited?

Yes. SimplicityHub is an accredited training provider for the Council for Six Sigma Certification (CSSC), and its courses map to standard White, Yellow, Green and Black Belt levels used across UK industry.

What is Lean Six Sigma?

Lean Six Sigma is a methodology that combines Lean’s focus on waste reduction with Six Sigma’s focus on reducing variation to improve overall process quality. It uses the DMAIC framework: Define, Measure, Analyse, Improve, Control.

How do I get started with Lean Six Sigma for free?

Start with the free White Belt course at SimplicityHub. It covers DMAIC basics, waste identification and process improvement fundamentals. The course includes a free exam and an official certificate with no hidden costs.

What is the difference between Yellow Belt, Green Belt and Black Belt?

Yellow Belt covers core concepts and tools for process improvement. Green Belt adds statistical analysis, process capability and hypothesis testing. Black Belt covers advanced statistical methods and project leadership for complex improvement initiatives.

What is the difference between Lean and Six Sigma?

Lean removes waste and speeds up processes. Six Sigma reduces defects and variation using data. Together they form Lean Six Sigma.