Your passwords, your writing, your time. One key.

Atrium is a password vault, a Markdown notes app and a calendar in one private home. Your passwords, notes and event details are encrypted on your device with a key only you hold, so we store them without being able to read them.

14-day free trial · No card · Export your notes and calendars anytime

Plan drawing of a house with three rooms, Vault, Notes and Calendar, around a courtyard where one key opens all three doors. Below the front door, lines of ciphertext leave the house for our servers.
Vault, notes and calendar are three rooms opened by one key that never leaves your device. What travels to our servers is ciphertext. Event times are the one exception: they stay readable to us so reminders can fire on time, while titles and details stay encrypted.
  • 3 apps · 1 key
  • End-to-end encrypted
  • Markdown and ICS export
Three rooms

Everything that matters, under one roof

One account, one master password, one Recovery Kit and one bill. Each room is good on its own; together they replace three subscriptions and three companies you have to trust.

Vault

Logins, secure notes and files, a password generator and sharing. A browser extension that fills your passwords in is coming soon.

Lock any item to a schedule: it opens only inside the window you set.

More about the vault

Notes

Markdown notes with wikilinks and backlinks, tags, folders, search, daily notes, templates and version history.

Bring your Obsidian folder in, take plain Markdown files out.

More about notes

Calendar

Several calendars, recurring events, tasks, holiday calendars, ICS feeds, and reminders in the app or by email.

Titles and details are encrypted. Reminder emails carry the time, never the title.

More about the calendar
How it works

Set up once, in a few minutes

  1. Create your key

    Sign in with a code sent to your email, then choose a master password. It never leaves your device. Save the Recovery Kit: it is the only way back if you forget the password.

  2. Bring your things in

    Import an Obsidian vault or a folder of Markdown files, add calendars from ICS files or subscription links, and add logins as you go (saving them straight from the browser extension is coming soon).

  3. Use it in your browser

    Open Atrium in any modern browser. Your device encrypts before anything is uploaded, and the vault locks itself after 15 minutes idle.

Time-locked access

Some doors should only open at the right time

Attach a schedule to any vault item and it can be opened only inside its window: every weekday from 9 to 5, the first of the month, or not before a date you choose. Our server's clock decides, so changing the time on your computer does nothing.

On Business, a colleague can ask to open a locked item early. The item's owner approves or denies, the approval works once, and the request, the decision and the opening all go into the audit log.

How time-locking works
  1. Production deploy keyWeekdays, 09:00–17:00
  2. Savings account loginThe 1st of each month, 09:00–10:00
  3. Letter for my editorNot before 1 March
Pricing

Every plan includes all three rooms

Plans differ by people and storage, not by features you need to get started.

Personal

$79per year

About $6.58 a month, billed yearly

Everything Atrium does, for one person.

  • 1 person
  • Vault, notes and calendar
  • 20 GB encrypted storage
  • 3 time-locked items
  • Note history kept 90 days
  • Up to 20 calendars
  • Audit log kept 90 days
  • Not included: Shared vaults with roles
  • Not included: Break-glass access requests
Start free trial of Personal

Business

$96per seat per year

About $8 a month per seat, billed yearly

3-seat minimum ($288 a year)

For teams: seats, shared vaults and break-glass access.

  • 3-seat minimum, add seats any time
  • Vault, notes and calendar
  • 50 GB encrypted storage per seat, pooled
  • Unlimited time-locked items
  • Note history kept 1 year
  • Up to 100 calendars each
  • Audit log kept 2 years
  • Shared vaults with roles
  • Break-glass access requests
Start free trial of Business

Prices in US dollars, billed yearly. Every plan: 14-day free trial, no card, nothing charged when it ends, and the exit guarantee. More than 100 seats? Talk to us.

No free plan. Here's why.

We make money from subscriptions, not from your data. Paying customers are what keep the service running and our incentives lined up with yours: we have nothing to sell except the product.

Security

We tell you what we can see

A copy of our database would give an attacker ciphertext. We publish exactly what our servers can read for each room, and the limits of zero-knowledge encryption.

  • Your master password never leaves your device. We keep only a value derived from it that can confirm it is right, never the password.
  • Nobody at Atrium can decrypt your data. Our admin tools have no way to decrypt anything.
  • We can see some metadata: your email, sizes, timestamps, schedules, event times and calendar feeds you subscribe to.
  • No back door means no reset. Lose your password and your Recovery Kit, and the data cannot be recovered.

Move your passwords, notes and calendar into one private home.

Try every part of Atrium free for 14 days. No card, nothing charged when the trial ends, and your notes and calendars export in open formats.