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Prism
Every feature

Everything Prism does, on one page.

A complete list of what's inside the app today — written in plain language, so you can decide what matters to you.

The core

Your vault, on your device.

Everything starts with the same idea: one encrypted file, locked with a password only you know.

Strong, modern encryption.

Your entries are sealed with XChaCha20-Poly1305 and a key derived from your master password through Argon2id — the same approach used to protect classified communications and financial systems. Without the password, the file looks like random noise.

One file you own.

Your vault is a single .prism file inside the app's storage area. You can move it, back it up, copy it to a USB stick — it stays unreadable to anyone without your master password.

Zero-knowledge by design.

Prism has no server, no account, and no recovery mechanism. We literally cannot read, reset, or recover your vault — there is nothing to subpoena and nothing to leak.

What you can store

More than passwords.

Prism is a security manager, not just a password manager. Anything sensitive belongs here — and everything is encrypted exactly the same way.

Passwords and accounts.

Login entries with the fields you'd expect — name, username, email, phone, URL, password, notes — plus security questions, custom fields, favorites, and your own categories.

Credit cards.

Save card numbers, expiry dates, security codes, and billing addresses. Copy a number into a checkout form with one click. Nothing about your cards is ever stored unencrypted.

Secret notes.

A safe place for recovery codes, account hints, contract numbers, or anything you'd otherwise leave in a Notes app. With sync on, a note written on one device appears on the others within seconds — still end-to-end encrypted.

Environment variables.

Built for developers: API keys, database URLs, deploy tokens, and .env entries with a name, value, and optional project tag. Sync them across the machines you actually code on, instead of leaving them lying in your home directory.

Getting in

Unlock quickly. Lock instantly.

The vault should be available when you need it — and locked the moment you step away.

Biometric unlock.

Use Face ID, Touch ID, or your phone's fingerprint sensor instead of typing your master password each time. The biometric itself never reaches Prism — your operating system holds a wrapped key in its keychain.

Auto-lock after 5 minutes idle.

If you walk away from your computer, Prism locks itself automatically. Adjust the timeout in Settings, or lock manually any time with a keyboard shortcut or a tap.

Clipboard wiped after 30 seconds.

When you copy a password, Prism clears it from the clipboard half a minute later — but only if it's still the value Prism put there. Nothing you copy afterward gets erased by mistake.

Password generator

Strong, memorable, or anywhere in between.

Pick the kind of password the situation calls for — and trust the strength meter to tell you when you're there.

Highly customizable.

Choose a length from 8 to 128 characters. Toggle uppercase, lowercase, numbers, and symbols. Set defaults once and forget them.

Pronounceable mode, in seven languages.

Some passwords need to be typed on a phone screen or dictated to a family member. Switch to pronounceable mode and Prism builds memorable phrases from wordlists in English, French, Spanish, Portuguese, Swedish, German, or Russian.

Reliable strength meter.

Every password — generated or typed by you — is scored on a live entropy meter. You see exactly how many bits of randomness it has and how long a realistic attacker would need to crack it.

Stay secure over time

An audit that does the worrying for you.

Passwords age. Sites get breached. Prism keeps an eye on both, without ever exposing what's in your vault.

Automatic security audit.

Open the audit screen and Prism scans your vault for entries that are weak, too short, or reused across multiple sites. Everything happens locally — no password ever leaves the device.

Breach checking that protects your secrets.

Turn on Have I Been Pwned and Prism will flag passwords that appear in known data leaks — using a k-anonymity technique that sends only the first five characters of an irreversible hash. Your actual password never leaves your computer.

Across devices

The same vault, wherever you are.

Sync is optional, end-to-end, and lives in your own cloud — not ours.

Cloud sync through your own Google Drive.

Turn it on and the already-encrypted vault file is uploaded to a hidden, app-private folder in your Drive. Other devices pull the same file when they unlock. The master password never travels.

Conflict resolution that warns you.

If two devices edit at the same time, Prism shows an explicit banner before resolving — never a silent overwrite. You decide which version wins.

Your data, your rules

Take your vault with you. Or print it.

Backups are a private matter. Prism gives you the building blocks and stays out of your way.

Export the encrypted vault.

Save a copy of your .prism file to a USB stick, an external drive, or any other location you trust. The file remains encrypted — useless to anyone without your master password.

Import from another Prism vault.

Merging a .prism file into the current vault offers three modes: skip duplicates, overwrite duplicates with the imported version, or keep both copies side by side. You're always shown what will change before anything happens.

Export to PDF, if you want paper.

Need a printed copy for a fireproof box or a sealed envelope? Prism can export your passwords as a plain PDF — but it asks twice and tells you exactly what you're about to do, because once cleartext leaves the vault, it leaves on your terms.

Make it yours

Comfortable in any language.

Prism tries to feel native wherever you open it.

Seven interface languages.

English, French, Spanish, Portuguese, Swedish, German, Russian — the interface, the security advice, and the generator wordlists are all fully localized. Switch any time from the top of the app.

Light and dark theme.

Choose either explicitly, or let Prism follow your system theme. Both themes are designed with the same care.

Roadmap

More to come.

Prism is shaped by what people actually ask for. Browser autofill, password sharing for families, additional sync providers, and more languages are all on the list. Want to suggest a new feature? Drop us a line — we read every message.