AltF Vault

Offline password manager with no account

AltF Vault is a password manager without a cloud: no account to create, no server holding your data, and no internet needed once the page has loaded. Your vault is encrypted with AES-256 and stays in this browser. The trade-off is that there is no sync, so you move it with an encrypted backup file.

  • Free, no account
  • Encrypted on your device
  • Works offline
  • Not yet independently audited
Checking this browser for a saved vault...

Who an offline vault suits

  • People who do not want an account or a company holding their passwords.
  • Shared or work computers where you cannot install software (use a private profile and a backup).
  • Keeping a second, separate copy of recovery codes and critical notes.
  • Trying a password manager before committing to one.

When to choose something else

If you need autofill, sync across phone and laptop, family sharing or an independently audited product, use an established password manager. KeePassXC is a free, audited offline option that stores a file you control; Bitwarden is a free, audited option with sync.

Offline password manager with no account: questions and answers

Does it really work without internet?

Yes, after the page has loaded once. Unlock, edit, lock and backup all run in the page. Only the optional breach check needs a connection.

Can I use it on my phone?

Yes, in a mobile browser. Each browser has its own vault, so use the encrypted backup to copy it between phone and computer.

Is there autofill?

No. There is no browser extension yet, so you copy and paste. Copied secrets are cleared from the clipboard after 30 seconds by default.

Is an offline password manager safer than a cloud one?

It removes the risk of a server breach and account takeover, but adds the risk of losing your only copy. With good backups, either can be safe. Audited products have had independent checks that AltF Vault has not had yet.

Vault guides and features

AltF Vault homeThe vault, how it is built, what it cannot do and the FAQ.How the encryption worksThe full AltF Vault security design in plain English: PBKDF2-SHA-256 key derivation, AES-256-GCM, what is stored, and what it cannot protect against.Encrypted secure notesWrite encrypted notes in your browser: bank details, ID numbers, door codes and private lists, sealed with AES-256 on your device. Free and no sign-up.2FA recovery code storageStore two-factor backup and recovery codes encrypted on your device, tick off used codes and get warned when a set is running low. Free, no account.Password health checkFind weak, reused and years-old passwords in your vault, plus expired API keys and low recovery codes. Checked on your device, breach check optional.Encrypted backup and restoreDownload an encrypted backup of your AltF Vault, keep it in cloud storage or on a USB drive, and restore it on any device with your passphrase.Import passwords from CSVImport a password CSV from Chrome, Edge, Firefox, Safari, Bitwarden, 1Password or LastPass into an encrypted vault. Read on your device, never uploaded.Master passphrase guideHow to choose a master password for a password manager: random word passphrases, how many words you need, how to memorise it and what to avoid.How to choose a password managerA checklist for choosing a password manager: audits, encryption, recovery, sync, offline access, export and cost, with an honest look at where AltF Vault fits.

Free tools that work with the vault

AltFTool stores nothing from your vault. It is encrypted and kept in your browser; the only optional network request is the k-anonymity breach check.