luma.Download
A professional at a desk with a laptop, late afternoon light coming through the window

A whole day. Not one interruption.

Luma is a free, open-source operating system that gets out of the way. It opens every file a client sends, it never stops you for an update, and it follows you from the desk to the phone.

No accountNo subscriptionRuns from a stick before it touches your disk

Everything they send, in one place.

Whatever a client attaches, it opens where it should and goes back as what it was. Nobody on the other end needs to know you switched.

.docx.zip.key.csv.indd.eml.pages.png.xlsx.sketch.pdf.rtf.ics.numbers.psd.md.pptx.msg.ai.odt.vsdx.txt.fig.mp4

Opens. Edits. Returns as what it was.

Office files open in Write, Sheets, and Present, included with Luma. Design and print files open in the app that owns them.

  • .docxWrite
  • .xlsxSheets
  • .pptxPresent
  • .pdfsigned, marked, returned
  • .fig .psd .ai .inddthe app that owns it

A working day with nothing in it but work.

The numbers that matter to a person with a 9:00 call, counted across a full day on Luma.

  1. 0Forced restartsUpdates wait until you say so.
  2. 0Pop-upsNothing asks you to rate it, try it, or renew it.
  3. 0UpsellsThere is no premium tier to be sold.
  4. 0AccountsSign in to your services, not to your computer.
  5. 1Update listSystem and apps, together, on your schedule.

One permission model as well. Every app asks the same way for the same things, and you answer once. Remove an app and its files and settings go with it.

Closed at the desk. Open on the phone.

Luma Sync keeps desktop, tablet, and phone as one system. The handoff is not a feature. It is what happens.

A Luma desktop on an office desk, the proposal open in Write
17:42Hartwell proposal.docxClosed at the desk. Page 4 of 11.
Luma Sync
A Luma phone held in hand on a city plaza in the evening, the same proposal open
18:06Hartwell proposal.docxOpen on the train. Page 4 of 11.

Same file. Same Write. Same paragraph. Nothing to upload, nothing to set up, no account to make.

Ari does the chores.

The assistant runs on your machine, not on someone’s server. It acts on your behalf, asks first, and keeps a record you can read.

  1. 08:52

    Book the small room for Thursday at 2.

    Room 2B held, Thursday 14:00 to 15:00Priya, Tom, and Hartwell invitedAsked first
  2. 10:15

    Chase the March invoice, politely.

    INV-0231, 30 days overdueReminder drafted to accounts at HartwellAsked first, you edited line 2
  3. 13:40

    Summarize the thread with legal.

    23 messages and 3 attachments read5 lines back, 2 open questionsNothing left this machine
  4. 16:05

    Move the 2:00 to 3:30.

    Hartwell review moved to 15:30Everyone told, room keptAsked first

Ari is local, and optional. It asks permission before it acts, and you can remove it entirely, files and settings with it. Meet Ari

The software your office already runs.

A built-in Windows and Android compatibility layer. Each program gets its own icon, its own file associations, and a place in the same update list.

  • TeamsWindows layer
  • ExcelWindows layer
  • OutlookWindows layer
  • ZoomWindows layer
  • SlackAndroid layer
  • ChromeNative
  • GmailNative
  • WriteNative, included
  • SheetsNative, included
  • PresentNative, included

Same permissions, same update list, same clean removal. Double-click the client’s file and it opens in the program you chose, whichever layer it came from.

Terms, in short.

There is no fine print. This is the whole agreement, and it does not change.

  1. 01FreeNothing to buy, nothing to renew, no paid edition.
  2. 02Open sourceThe code is public. Read it, audit it, improve it.
  3. 03No accountSign in to the services you use, not to your own computer.
  4. 04No subscription, no adsNothing renews and nothing is sponsored. The suite, Sync, and Ari come with the system.
  5. 05Your disk stays yoursRun it from a live stick. Nothing on your disk changes while you try it.
  6. 06Removal is completeRemoving an app removes its files and its settings. Removing Ari removes Ari.
  7. 07Who makes itA small team and thousands of contributors, funded by donations.

Bring it to the office on Monday.

Write it to a stick and boot from it at your desk. Open the last three things a client sent you. Nothing on your disk changes while you decide.

Desktop, tablet, and phone. Free, open source, no account.