Sensitive file watcher
Watches your Downloads folder in the background and catches .p8, .pem, certificates or .env files before they leak. One click encrypts them into your vault and shreds the original.
NewAuthsidian 2.0 is live · Next-Gen Zero-Knowledge
Zero knowledge.Zero compromise.
The native secrets and password manager with real-time download leak protection, instant biometrics, and self-destructing links.
Five things your current manager can’t do.
Authsidian also protects what isn’t a password: API keys, certificates and the files that pile up in your Downloads folder.
Real zero-knowledge
Your keys never leave your device’s RAM. The server stores encrypted blobs it can’t read: blind storage.
Authsidian Send
Share a secret through an end-to-end encrypted, password-protected link that self-destructs after the first download.
Smart card autofill
Fills Stripe, Shopify, MercadoPago and PayPal checkouts. Validates with the Luhn algorithm and never stores your CVV, in line with PCI-DSS.
Native and always ready
Lives in the system tray on Windows and macOS and unlocks instantly with Windows Hello or Face ID.
Security you can verify yourself.
Try the generator: it works just like in the app, using your browser’s cryptographic randomness. Nothing you generate leaves this page.
Argon2id for your master password
GPU- and ASIC-resistant key derivation that makes brute-forcing painfully expensive.
AES-256-GCM on every item
Authenticated encryption: any tampering with the ciphertext is detected and rejected.
Keys live in your RAM
Decryption happens on your device. Lock the vault and the keys are wiped from memory.
A server that can’t read you
The cloud only holds opaque blobs. Neither we nor anyone who breaches it can see your data.
Very strong · 123 bits of entropy
Time to crack at a trillion guesses per second: over a trillion years
20
Head to head with the big names.
Other managers are great at storing passwords. Authsidian also guards the secrets that aren’t.
| Feature |  Authsidian | 1Password | Bitwarden | Apple Keychain |
|---|---|---|---|---|
| Client-side zero-knowledge | Yes | Yes | Yes | Yes |
| Auto-detects .p8, .pem and .env files | Yes | No | No | No |
| Password-protected, self-destructing sharing | Yes | PartialOne-time view links | Yes | No |
| Autofill on Stripe, Shopify, MercadoPago and PayPal | Yes | Yes | PartialLimited in iframes | PartialSafari only |
| Native Windows Hello and system tray | Yes | Yes | Yes | No |
| Unlimited multi-device sync | Yes | Yes | Yes | PartialApple-centric |
| Zero telemetry in client apps (desktop, mobile, extensions) | Yes | PartialAnalytics collected | PartialCrash telemetry | PartialDevice telemetry |
Based on each product’s public documentation as of October 2026. Third-party features may change.
Free to start. Pro when you need it.
The local vault is free and unlimited. You only pay for the cloud and advanced features.
Community
All the essentials, on your device.
$0forever
No card, no account
- Unlimited local vault
- Chrome and Edge extensions
- Local file watcher
- Generator and 2FA codes
- Zero telemetry in every app
Pro Personal
Your vault, synced across every device.
$39/yr
Works out to $3.25 a month
- Everything in Community
- Unlimited Cloud Sync
- Encrypted attachments of 25 MB+
- Unlimited Authsidian Send
- Priority support
Team
For companies that share credentials.
$7.19/mo
Billed annually
- Everything in Pro
- Shared team vaults
- Security event auditing
- Business support
Prices in USD. Payments processed by Lemon Squeezy, which handles taxes and invoices.
Install it where you work.
One vault across desktop, mobile and browser. Start free, no account needed.
Windows
Windows 10 and 11 · .exe installer
x64· Coming soonARM64· Coming soonmacOS
Universal .dmg, Apple Silicon and Intel
Download .dmg· Coming sooniPhone
iOS with Face ID and autofill
App Store· Coming soonTestFlight· Coming soonBrowsers
Extension with card autofill
Chrome· Coming soonEdge· Coming soon