Free 5 Whys
Root-cause analysis framework — drill from symptom to systemic cause in five linked questions.
A free, browser-based tool from our library of 54+ free Ed Tools — built for our own classrooms and shared with Singapore trainers and educators.

About 5 Whys
Root-cause analysis framework — drill from symptom to systemic cause in five linked questions.
Key features
- Structured 5-Whys form
- Save / share analysis sessions
- Export the chain as PDF
Built with
Who uses 5 Whys?
Singapore training providers, WSQ ATOs, corporate L&D teams, and educational institutes use 5 Whys inside our AI-LMS-TMS and e-learning deployments. Whether you need a single tool integrated into your existing classroom workflow or the full 54-tool suite, we scope, deploy, and train your organisation end-to-end.
5 Whys — frequently asked questions
Is 5 Whys free to use?
Yes. 5 Whys is completely free and runs in your browser — there is no signup, licence fee, or trial limit. Tertiary Infotech Academy built it for our own problem-solving sessions and made it openly available to trainers and educators.
Do I need to install anything to use 5 Whys?
No. 5 Whys is a browser-based tool — just open the live demo on any modern device. Learners can usually join from a single link with no accounts required.
Can I use 5 Whys inside my own LMS or training programme?
Yes. We can brand, integrate, and deploy 5 Whys — or the full suite of 54+ Ed Tools — inside your own Learning / Training Management System with WSQ/TPQA-compliant workflows. Enquire using the form and a consultant will reply within one business day.
Is the source code for 5 Whys available?
Yes. 5 Whys is open-source — you can view the code on GitHub at github.com/alfredang/5whys.
Want 5 Whys branded inside your own LMS?
The tool is free to use as-is. To bundle, brand, or custom-build it into your training platform, tell us what you need — we reply within one business day.
No spam · your details are never shared · trusted by Singapore training providers.
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Bring 5 Whys and 54+ Ed Tools into your own LMS / TMS
WSQ/TPQA-compliant workflows, SSG API integration, Singapore data residency, and your learner data migrated — scoped at a fixed fee with a typical four-week go-live.
