A free, fully client-side self-check to get a rough estimate of your implementation status against the ten measure areas in Article 21(2) of the NIS2 Directive.
🌍 Fully translated into all 24 official EU languages — every domain, question, help text, country entry and UI string. Not just DE/EN — genuinely all 24, with no machine-translation fallback.
🔗 From the same author: ISMS Builder — a self-hosted, open-source ISMS platform covering ISO 27001, NIS2, GDPR/DSGVO and BSI IT-Grundschutz. This quick-check is a good first step before setting up a full ISMS.
Standalone tool — not part of, and not dependent on, ISMS Builder. A later integration (e.g. as a module inside ISMS Builder) is possible but deliberately not part of this release.
No installation, no build step, no server required — just open index.html in a browser:
xdg-open index.html # Linux
# or: open index.html (macOS) / double-click in Explorer (Windows)Alternatively, serve it with any static web server, e.g.:
python3 -m http.server 8080- 10 domains × 5 questions (50 questions total) per NIS2 Art. 21(2)(a)–(j), maturity scale 0–4
- Automatic rough classification Essential/Important by sector + company size
- Result dashboard: bar chart, radar chart, gap analysis with priorities
- Country information for the country selected in your profile: competent authority, national law, transposition status (all 27 EU member states included)
- PDF export via the browser's print function (no separate PDF tool needed)
- JSON export/import to save, share, and resume an assessment
- Automatic browser autosave (
localStorage) — nothing is lost on reload - Dark mode
- Runs entirely locally — no data ever leaves the browser, no tracking, no cloud connection
Fully translated into all 24 official EU languages: Bulgarian, Croatian, Czech, Danish,
Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Irish, Italian, Latvian,
Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish, Swedish —
every domain, question, country entry, and UI string (data.js, i18n.js).
Deliberately no automatic language fallback without quality control — should a further
language ever be added before it's fully translated, the built-in fallback in i18n.js
(t()/tl()) falls back to English until translation is complete.
Not a substitute for legal advice. This tool provides non-binding orientation only. Binding classification and implementation obligations depend on the respective national transposition of the NIS2 Directive and change continuously — please confirm with the competent national authority or qualified legal counsel before any decision.
The country data (data.js, COUNTRY_DATA) reflects the status as of the date named in
COUNTRY_DATA_ASOF and is maintained manually — there is no automatic update.
- v1.0.1 — Import button ("Load saved assessment") on the welcome screen now has an icon, so it's easier to spot next to the primary "Start" button.
- v1.0.0 — Initial release: 10 domains × 5 questions, classification, result dashboard, all 27 EU member states, all 24 official EU languages, JSON export/import, PDF export, autosave, dark mode.
Developed independently. The rough thematic structure (10 NIS2 domains, country overview as a concept) was inspired by a thematically related but unlicensed third-party project — all text, questions, and data were written from scratch; no code was reused.
© 2026 Claude Hecker — AGPL-3.0