100% offline · no cloud · no subscription

Open any document
instantly. Offline.

Drag a file onto AI Vault — PDF, Word, Excel, EPUB, images, or our encrypted .42f — and it opens in about a second. No app to launch first, no upload, no sign-in. Everything stays on your machine.

Get early access Explore the studio
AI Vault — .42f Reader
AI Vault .42f Reader — drop any file (PDF, DOCX, EPUB, XLSX, MD, images, .42f) to open it instantly
The real app — drop any format, it opens on your device.

The everyday move

Drop it on the icon. It just opens.

Associate AI Vault once, and from then on any document opens in it the moment you drop it — no waiting for an app, no browser tab, no account. The same reader handles every format.

~1sto open a document, cold
0bytes leave your machine
$0subscription — you own it

f42 · document studio

Everything Acrobat charges for — running locally.

A full PDF studio inside the vault: edit, convert, sign, protect. No subscription, no sign-in, no upload.

  • Provable redaction. Content is truly removed — the page is rebuilt, so the text underneath can't be copied or recovered.
  • Convert anything. PDF ⇄ Word, Excel, PowerPoint, HTML, images — both directions, on device.
  • Compare, crop, forms, e-sign. Word-level diff, draw-on-page fields, real AcroForm, PKI signatures.
Galaxy PDF Tools
AI Vault Galaxy PDF Tools — convert, edit, sign, protect, AI

Why it's different

The cloud is the vulnerability. We removed it.

No cloud, ever

No accounts, no sync servers, no “trust us.” Your vault is a file on your disk — works air-gapped.

Zero telemetry

No analytics, no phone-home, no beacons. Verifiable on the wire, because there's nothing to send.

You hold the keys

Keys derive from your passphrase via scrypt and never leave the device. Nothing to leak, nothing to subpoena.

The .42f format

One encrypted file. Controls a cloud editor can't offer.

AES-256-GCM

Authenticated encryption, scrypt key derivation.

Device-lock

Bind a document to one machine. Stolen file, useless file.

Expiry

Documents that stop opening after a date you set.

Ed25519 signatures

Prove authorship and integrity — no cloud CA.

On-device intelligence

AI that works for you — not on you.

Chat-with-document, semantic search and an assistant that automates the app by plain language. All of it runs on your hardware.

  • Extractive, hallucination-free answers with page citations.
  • Lightweight & swappable — built for a coming ultra-dense model.
  • An assistant that acts — typo-tolerant, EN/RU, it does the task, not just describes it.
AI Vault — Dashboard
AI Vault dashboard — the real application

One vault for everything

Passwords. Files. Wallets. Documents. Media.

Not five apps and five clouds — one encrypted vault on your device.

Password managerEncrypted filesCrypto wallets PDF / DOCX studioPhotos & videoOffline P2P share NotesLocal automation bot
AI Vault — Credentials
AI Vault credentials — encrypted password manager

Where this goes

More knowledge. Less space. No compromise.

We're building a new approach to on-device storage and intelligence — denser knowledge in a fraction of the footprint, so capable AI weighs megabytes, not gigabytes. Privacy and power stop being a trade-off.

Own your data again.

Get early access to the most private productivity tool you'll run.

No spam, no tracking — there's no server to do it.