Answers/The problem queries
Encrypted storage that works completely offline — no internet required, ever
Offline-only encrypted storage means the tool never touches the network, in any circumstance — not to activate, not to check for updates, not to phone a telemetry endpoint. This is rarer than you'd think. Many 'offline' products do a one-time activation the first time you install them; some check licenses periodically after.
The airgap-friendly checklist
No install step that reaches the internet. No first-run activation. No license server. No update check. No telemetry, opt-in or otherwise. Ideally, source you can inspect to confirm the above.
Elba on an airgapped machine
Download the HTML file on any online computer. Copy it to a USB stick. Open it on an airgapped Chromium browser — it will not attempt to reach the network at any point. Verify this yourself in DevTools → Network tab: the list stays empty across seal and unseal.
Questions people actually ask
- Does Elba check for updates?
- No. If we release a new version, you get it by choosing to download it. The file you own never reaches out.
- Can I use it on a machine that has never touched the internet?
- Yes, that is the intended use for high-sensitivity work.
Read the full guide
- Offline file encryption in a single HTML file
Elba is offline file encryption delivered as one HTML file. No installer, no internet, no telemetry — encrypt a folder with AES-256-GCM.
- Zero-network encryption: a tool that never phones home
Zero-network encryption tools make no outbound requests — no telemetry, no licence check, no update ping. Verify it yourself in DevTools.
Take the island
Elba is one HTML file. It runs locally in a Chromium browser, seals a folder with AES-256-GCM, never phones home, and becomes open source on 1 January 2030.
- €49MMXXVI· now ·
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- €29MMXXVIII2028
- €19MMXXIX2029
- FreeMMXXX2030
the price falls each year · free to all 1 jan 2030
pay once · no account · nothing leaves