Six Sigma · Lean · Continuous Improvement

The complete Six Sigma & Lean toolkit.
In your browser. Privately.

Purpose-built for Continuous Improvement. Run capability studies, Gage R&R, hypothesis tests, DOE and control charts with genuine statistical rigor — and plan the whole DMAIC project around them. Nothing to install, and your process data never leaves your machine.

Browser-only — your measurements are never uploaded
Process Capability Cpk = 1.67
LSL USL x̄ = target
Control Chart · I-MR
In control
UCL LCL
01Define 02Measure 03Analyze 04Improve 05Control
Made for Continuous Improvement

Built around Six Sigma & Lean —
not bolted onto it.

Generic stats packages make you bend a DMAIC project into their world. Enterprise quality suites cost thousands per seat and a ticket to IT. Shuriken Stats speaks the language Continuous Improvement practitioners already use — the tools, the workflow, and the metrics.

Vs. generic stats apps

Tailored to DMAIC

Every module maps to a phase — capability, MSA, SPC, DOE — and produces the outputs a belt actually reports. No translating your project into someone else's tool.

Vs. enterprise suites

Priced for practitioners

Pro is $60 for your first year — not a four-figure annual license with seat negotiations and an IT install. Open a browser and get to work.

The whole project

Define to Control, in one place

Charters, SIPOCs, fishbones and Pareto sit right beside the statistics, so a single tool carries you across the entire improvement project.

Private by design

Your measurements
stay on your machine.

Every calculation runs locally, right inside your browser. We never upload, store, or even see your process data — there's no cloud database of your studies and no exposure of proprietary measurements. It's analysis that respects an NDA.

No data uploads. Your datasets are read and analyzed on-device, never sent to a server.
No server-side storage. Projects live in files you control — your account holds none of your data.
Built for confidential work. Ideal for regulated, proprietary, or NDA-bound process data.
One tool, every phase

From charter to control plan —
and all the statistics in between.

More than thirty analysis and planning modules, organized the way you work — Define, Measure, Analyze, Improve, Control — sharing one interface, one project file, and one project notepad.

Pro — statistical toolkit & exportsFree — plan, map, prioritize and control
Define

Problem Statement Coach

Turn a vague complaint into a measurable problem and gap.

Project Charter

Business case, scope, metrics and team — with a printable sign-off page.

SIPOC

Map suppliers, inputs, process, outputs, customers.

Voice of Customer

Translate needs into measurable CTQs.

COPQ Calculator

Put a credible dollar figure on the problem.

A3 Project Summary

Roll logged results into a one-page A3.

Measure

Data Collection Plan

Decide what to collect, how, how often, and by whom.

Pro

MSA / Gage R&R

Gage R&R, attribute agreement, bias and linearity.

Pro

Capability Analysis

Cp, Cpk, Pp, Ppk with histograms and spec limits.

Data Summary

Descriptive stats and quick visual checks.

Sample Size Calculator

How much data you need before you start.

Yield Calculator

First-pass, rolled-throughput and normalized yield.

Swimlane Flowchart

Map how the process really runs, lane by lane.

Value Stream Map

Expose delays, inventory and non-value-added time.

Analyze

Pareto Analysis

Find the vital few with the 80/20 view.

Fishbone + 5 Whys

Structure root-cause analysis by category.

Graphical Tools

Explore relationships and distributions visually.

Pro

Hypothesis Testing

t-tests, ANOVA, proportions, chi-square & more.

Pro

Lay-Zee Hypothesis Tool

Point it at your data; it picks and runs the right test.

Pro

Design of Experiments

Full & fractional factorials with analysis.

Pro

Distribution Fit

Identify the best-fitting distribution for your data.

Pro

Main Effects & Interactions

Visualize factor effects from your experiments.

Pro

Multi-Vari Charts

Expose sources of variation across factors.

FMEA

Score failure modes by severity, occurrence, detection.

Trend Analysis

Run chart, regression and Mann-Kendall trend tests.

Improve

Cost-Benefit / Savings

Savings, payback, ROI and NPV for a solution.

Benefit-Cost-Effort Plot

Rank ideas and pick the quick wins first.

Implementation Plan

Owned, dated, trackable actions with RACI.

Control

Control Plan

Lock in the gains: what to monitor and what to do when it drifts.

Pro

Control Charts (SPC)

I-MR, X̄-R, X̄-S, p, np, c, u — with rule checks.

Word Report Generator

Assemble notepad results into a formatted .docx report.

Why Shuriken Stats

Serious statistics, without the friction.

01

Genuine rigor

Proper Cpk/Ppk, ANOVA-based Gage R&R, and real hypothesis tests — not spreadsheet approximations.

02

Excel & Word export built in

Send any analysis — results and charts — to a clean workbook, and assemble a full DMAIC report in Word, in one click.

03

Nothing to install

Runs in any modern browser on any OS. No license servers, no IT ticket, no desktop install.

04

A fraction of the cost

Professional-grade analysis without the enterprise price tag of legacy desktop software.

Pricing

Start free. Upgrade when you need the stats.

Plan, map and manage any project for free. Unlock the full statistical toolkit and Excel & Word export with Pro — $60 for your first year, with a 5-day free trial.

Free
$0
Always free. No card required.
  • Problem statement, charter, SIPOC, VOC, COPQ
  • Pareto, fishbone, data summary, graphical tools
  • FMEA, benefit-effort, implementation & control plans
  • Flowcharts, value stream maps, yield & sample size
  • Statistical toolkit, Excel & Word export
Create free account
Introductory price
Pro
$60 / first year
5-day free trial · billed annually · cancel anytime
  • Everything in Free, plus:
  • Capability, MSA / Gage R&R, control charts (SPC)
  • Hypothesis testing, Lay-Zee auto-test, DOE
  • Distribution fit, main effects, multi-vari
  • Excel export and Word report from every tool
  • Printable, sign-off-ready project charter
Start your 5-day free trial

Introductory offer: $60 USD covers your first 12 months, then Pro renews at the standard annual price. A payment method is required to start the trial; you won't be charged if you cancel before it ends. Your process data stays private on every plan.

Questions

Good to know.

Is my data really private? +

Yes. All analysis runs locally in your browser — your datasets are never uploaded to us, and we keep no cloud copy of your studies. Your account and billing are handled securely by our auth and payments providers, but your actual process data stays on your machine.

How is this different from desktop stats software? +

You get the core capability, measurement-system, hypothesis, DOE and SPC analysis a Six Sigma project needs — in any browser, with nothing to install and no license server. It's built for practitioners who want professional rigor without enterprise pricing or IT overhead.

How does the 5-day trial work? +

Start the trial with a payment method on file and every Pro tool unlocks immediately. Cancel any time in those 5 days and you won't be charged. If you keep it, your card is charged $60 for the first year when the trial ends, and your account stays Pro for 12 months.

Is there a monthly plan? +

No — Pro is billed annually. The introductory price of $60 covers your first year; renewals are at the standard annual price, which you'll see in your account before anything is charged.

What happens if I don't renew? +

Your account simply drops to the Free plan — you keep the planning and mapping tools and never get locked out of your work. Your saved project files are yours regardless of plan.

Do I need to install anything? +

No. Shuriken Stats runs entirely in a modern web browser on Windows, macOS, or Linux. Open the page and start working.

Can I cancel anytime? +

Yes. You can cancel from your account at any time; you'll keep Pro access through the year you've paid for, then move to the Free plan.

Sharpen your next project.

Run a full DMAIC project — from charter to capability study — with tools that respect your time and your data.

Get started — free