Built by an industrial engineer

Quality engineering tools
that actually work.

Standalone tools for SPC, FMEA, ISO audits and 8D. One HTML file. Works offline. No subscription. No installation.

Browse tools → See Proof SPC
IATF 16949 ISO 9001 AIAG+VDA VDA 6.3 EN / PT bilingual Offline · No install
Tools

One tool per problem.
Nothing more.

Every Leantix tool solves one specific engineering problem — and does it well. No bloat, no training required.

SPC · Capability
Proof
SPC & Process Control Studio. X̄-R, I-MR, Cpk, Pp, Ppk. Print-ready PDF report. Nelson rules.
Available now
$35 one-time
Get Proof →
SPC · Live Monitoring
Proof CI
All of Proof Standard + real-time I-MR monitoring, live Cpk tracking, OOC/OOS alerts and CSV export.
Available now
$49 one-time
Get Proof CI →
FMEA · Risk
Guard
FMEA Risk Analyser. AIAG+VDA 1st edition. RPN and AP scoring. Action tracking.
Coming soon
— in development
Audit · ISO · IATF
Verify
ISO 9001, IATF 16949 and VDA 6.3 audit tool with inline guidance and finding reports.
Coming soon
— in development
8D · Problem Solving
Solve
8D Problem Solving Report. All 8 disciplines. Customer-ready export.
Coming soon
— in development
PPAP · Submission
Submit
PPAP Submission Manager. AIAG+VDA, 18 elements, Level 1–5, PSW generation.
Coming soon
— in development
Why Leantix

No cloud. No subscription.
No nonsense.

Every tool is a single HTML file. Open it, do the work, close it. Your data never leaves your machine.

01
Works completely offline
On the factory floor, in a client meeting, on a plane. No internet required — ever. Your data stays on your machine.
02
One file. No installation
Download one .html file. Open it in any browser. That's the entire setup. No IT department needed, no admin rights required.
03
Built to real standards
IATF 16949, ISO 9001, AIAG+VDA, VDA 6.3. Not generic — built by a practising industrial engineer for real manufacturing environments.
04
One-time purchase
Pay once, use forever. No monthly fees, no licence renewals, no surprise charges. Updates to minor versions included.
05
Bilingual EN / PT
All tools switch between English and Portuguese in real time. Built for teams and professionals across European and Brazilian markets.
06
Print-ready outputs
Every tool produces a professional PDF report you can send directly to a customer or auditor. No copy-paste, no reformatting.
Featured tool

Proof — SPC Studio

Statistical process control for quality engineers. Cpk, control charts, and a print-ready report — in 60 seconds.

proof-spc-tool-v13.html
1 — Configure
2 — Charts
3 — Capability
4 — Report
// CAPABILITY RESULTS
1.52
Cpk
PASS
1.58
Cp
PASS
1.41
Ppk
PASS
1.47
Pp
PASS
UCL x̄=25.002 LCL
Shaft Diameter Ø25h6n=30 · I-MR chart
4 chart types, auto-selected
X̄-R, X̄-S, I-MR and p-chart — Proof picks the right one based on your subgroup size.
All 8 stability rules
Nelson and Western Electric OOC rules detected automatically — no manual checking.
PPAP-ready report
PDF report with your company logo, all indices, charts and process summary. Send it directly to your customer.
Proof CI — live monitoring
Add measurements in real time as production runs. Live Cpk, OOC alerts, CSV export. Available in the CI version.
Get Proof — $35 → Get Proof CI — $49
IATF 16949 ISO 9001 AIAG+VDA PPAP Element 9 Nelson Rules Western Electric Pre-SOP / SOP Supplier Audits

Stop rebuilding
the same spreadsheets.

One file. Open in your browser. Get to work.

Browse all tools → Contact us
One-time purchase · Perpetual licence · No subscription · Works offline