Yellow Belt · Green Belt · Black Belt
Stop rereading your course notes.
Start practising.
2,480 questions close to the real Lean Six Sigma certification exams. Randomised quizzes, 4 question types, progress tracking.
15 questions from the Discovery track, no sign-up and no card required. Every answer comes with an explanation.
Which metric measures defects per 1,000,000 opportunities?
Who it is for
For those who already have the course and doubt they have retained it
beltup does not teach Lean Six Sigma from scratch: it tests what you think you already know. People use it before a course to arrive with the basics in place, during it to consolidate each module, and afterwards to maintain a level that fades fast without practice.
You are preparing for a certification
A Yellow, Green or Black Belt session is in your diary, with course material and a date. Practice spots the chapters where you still answer on intuition, while there is still time to go back over them.
You practise without being certified
Engineer, technician, project manager: you already use 5S, VSM, FMEA or control charts without having sat an exam. The quizzes straighten out a vocabulary learned on the job — often right, sometimes approximate.
You are a quality student
Lean Six Sigma is on the syllabus, the exam is written, and the course does not say which questions will come up. Practising between two sessions teaches more than reading the same handout three times.
You were certified long ago
Years in the field, and tools not opened since the course: MSA, designs of experiments, hypothesis tests rust quickly when daily work does not call for them. A short session now and then is enough to keep the whole set available, without going back through a course.
You train or supervise teams
Trainer, quality manager, shop-floor supervisor, teacher: your learners need to practise between two classroom sessions, and you do not have time to write three hundred questions. beltup rolls out across multiple accounts, with company invoicing and tracks composed by you.
The tracks
6 tracks, from beginner to expert
Discovery free in full · 5 sample questions on every premium track · Full access with the subscription
Lean Discovery
All the Lean fundamentals, gently. Ideal for starting out or revising the basics: waste, 5S, Kaizen, flow.
15 questions · 15 min
Green Belt Lean Manager
The complete track for Lean Green Belt certifications. VSM, SMED, Kanban, Takt Time, OEE, short-interval management and more.
20+ questions · 20 min
Six Sigma Green Belt
Statistics and the DMAIC method. Cp/Cpk, control charts, statistical tests, Gage R&R, FMEA.
20+ questions · 25 min
LSS Expert
For Black Belts and experts: Hoshin Kanri, advanced statistics, advanced Kanban and strategic steering.
15+ questions · 20 min
Lean in Service & Office
Lean adapted to service environments: hospitals, banking, HR, IT, call centres. Flow, waste and service tools.
15+ questions · 15 min
Revision Sprint
15 mixed questions across every area and level. For a quick, effective revision.
15+ questions · 10 min
Progression
Yellow, Green, Black: three levels, not three volumes of the same course
The three belts differ less in the amount of content than in what is expected of you in the field. beltup follows that gradation: from one level to the next, the questions change in nature before they change in difficulty.
Recognise and name
The fundamentals: waste, 5S, Kaizen, Gemba Walk, visual management, flow logic. The questions check that you can identify a tool and know what it is for. It is the level of the Lean Discovery track — free, complete, no time limit.
The Yellow Belt syllabus in detailApply and calculate
DMAIC end to end, VSM, SMED, Kanban, takt time and TPM on the Lean side; capability (Cp, Cpk), MSA, hypothesis tests, SPC and designs of experiments on the Six Sigma side. The only level where beltup asks calculation questions: DPMO, RTY, FMEA risk priority number. Two tracks are devoted to it.
The Green Belt syllabus in detailArbitrate and steer
Hoshin Kanri, advanced statistics, steering a project portfolio. The LSS Expert track covers these topics, with a question bank currently shallower than the Yellow and Green levels — better to read it here than to find out after subscribing.
The Black Belt syllabus in detailNothing forces you to follow this order. Free mode, included in the subscription, draws twenty random questions at the level of your choice, with no set topic: it is the fastest way to know whether a level is already within your reach.
Pricing
Start for free, progress at your own pace
No bank card to start. Cancel any time.
Free
0 €
no bank card
- The whole Yellow Belt level, with renewed questions
- 15 trial questions on each of the 5 other tracks
- Every answer marked, explained, with its source
- Your results and badges kept
Outside Yellow Belt, these questions do not change from one session to the next.
Get startedMonthly
12,90 €
/monthcancel any time
- The 5 other tracks in full, that is over 1,800 questions
- A random draw every session: no two sessions look alike
- Duration, number of questions and exam mode of your choice
- Free mode: 20 questions at the level of your choice, no set topic
- The calculation questions — Cp, Cpk, DPMO, yield, FMEA criticality
Annual
99 €
/yearthat is 8,25 € per month — 36 % less than monthly
- Everything the monthly plan includes
- A single payment and a single invoice in the year
- Your price is locked in until the next renewal
Prices include tax. An invoice is sent at every renewal.
Method
Practising and re-reading do not produce the same result
Re-reading a chapter gives the feeling of knowing it. Being asked about it, book closed, gives the opposite information — and that is the one that helps. The gap between the two is what surprises people on exam day: the chapter seemed mastered because it had been read three times, and never recalled once.
A quiz forces recall. It produces a wrong answer where reading only produced an impression of familiarity — and a wrong answer is a starting point: it names the chapter to go back over, where re-reading flags nothing.
01
Randomly drawn questions
Every session draws from the track’s question bank, with no predictable repetition. You memorise the concepts, not the position of a right answer in a list seen ten times.
02
Four question formats
Single-answer multiple choice, multiple-answer multiple choice, putting a sequence in order, numerical calculation. Ordering and calculation are the two formats re-reading does not prepare you for.
03
An explanation for every answer
Right or wrong, every answer is commented on: why that one, and why not the others. A distractor dismissed without knowing why will come back for you in the exam.
04
Sourced questions
Every question carries the reference it rests on, shown at marking. 2,255 of the 2,480 questions have been reviewed and validated, and the list of sources is public — including the share of the bank that has none.
05
Revision grouped by topic
At the end of a session, mistakes are grouped by topic. Three SMED mistakes and two VSM mistakes are not five mistakes: they are two topics to work on.
06
An interrupted session resumes
An abandoned quiz restarts where it stopped. And if a question looks wrong or ambiguous to you, report it: it is reviewed, and you get a reasoned reply.
Company & school partnerships
Your teams learn better when they practise.
Roll beltup out to your staff, your students or your learners. Company invoicing, multiple accounts, content adapted to your context.
Discover the partner offerIndustry & production
Prepare your shop-floor teams for the Lean Six Sigma approach before or during their upskilling.
Schools & universities
Build beltup into your quality curricula. Your students practise on their own between classes.
Training providers
Complement your classroom programme with an unlimited self-practice platform.
Tailored quote · Company invoicing · Reply within 48 h
contact@beltup.frThe publisher
Who publishes beltup
beltup is published by Kernel Ops (Kernel Ops SASU), an operational performance consultancy registered in France under SIREN 102 009 131, headquartered in Paris. The platform is designed and maintained by Clément Rat, the company’s president and a Lean Six Sigma Black Belt: the questions are written by a practitioner who has sat these certifications and led these projects. There is no outsourced customer service behind beltup — a question sent to contact@beltup.fr gets a reply from a person within 48 working hours.
beltup is not a certification body. The platform trains for exams it does not award, and is not affiliated with any certification body. No pass rate is displayed here: none is measured today, and the day one is, the method will be published with the figure.
The exam does not forgive improvisation.
Start for free with the Discovery track. Move to the subscription when you are ready.