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NT² Vault
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Offline vault guide

Last updated: 27 Jun 2026

NT² is offline by default, not offline as a fallback. Your encrypted vault lives on your device first; the network is optional.

Do I need internet to use NT² Vault?

No, after the first load of se.nt2.me. Create, unlock, search, edit, attach files, and export .nt2backup backups without any network connection.

How is NT² different from "offline mode" in cloud vaults?

Many password managers require an account and sync metadata from the cloud; offline mode is a degraded cache. NT² stores the authoritative vault in local SQLite on device (OPFS)—no account required to start.

What works offline vs what needs the network?

Offline: all local CRUD, attachments, export/import, password generator. Network (optional Premium): cross-device sync, cloud attachment storage, share relay delivery.

Can I install NT² for offline access on mobile?

Yes. Add se.nt2.me to your home screen (PWA). For desktop and mobile apps, see Desktop and mobile apps.

Local-first architecture

Your browser
  ├── SQLite (OPFS vault.sqlite)      ← encrypted asset rows
  ├── BlobStore (OPFS attachments)    ← encrypted attachment ciphertext
  └── In-memory vault key             ← cleared on lock / idle timeout

Cloud sync (Premium) is a blind replica of ciphertext—you opt in from Settings. The free tier never requires it.

When offline matters

ScenarioWhy local-first helps
Travel / spotty Wi‑FiFull vault at embassy, airport, or remote site
Distrust of cloudNo vendor can read what they never receive
Quick copyOpen vault, copy IBAN or routing number, clipboard auto-clears
Power outageNo sync server dependency for read access

Getting started offline

  1. Visit se.nt2.me once while online to load the app shell.
  2. Open the vault app and set a master password when prompted (or use the auto-provisioned vault and set one later in Settings).
  3. Add your assets—bank, crypto, documents, credentials.
  4. Export a .nt2backup backup before switching devices.

See Getting started for browser support and master password basics.

Related topics

Learn about NT²