LEAVESAFE

leave your laptop. stay safe.

leavesafe · a device security monitor

it watches the laptop you walked away from

six sensors on the machine itself. if one of them stops agreeing with the reading it took when you armed, the laptop sounds and your phone is told, straight away.

download explore

the part that does the watching is open source — see what that means

what it does

six things, one machine

it watches
charger, lid, usb, screen, network, keys — on the computer you leave behind
it reacts
the moment a sensor disagrees — a siren on the machine itself, getting louder
it needs
no account on the open-source version — it reaches no server at all. pro signs in with a sixteen-digit key, and still no e-mail
power
lid
usb
screen
network
input

when you would use it

the moments you have to leave it

the counter
A café, and your order is ready. The laptop stays on the table with the screen open, and you are eight metres away with your back to it for ninety seconds. Nothing is stolen slowly.
the meeting room
A shared office. Your desk is not in the room you are in, and the people walking past it are not people you know. Arming it costs one keystroke and the audit log says what happened while you were out.
the second phone
A hostel, a train seat, a library. Your own phone is dead or charging across the room, so you hand the code to whoever you are travelling with — an hour, a day, or until you take it back.

All three are the same product doing the same thing. What changes is who hears it: on your own wi-fi, every phone on that network — and on any network at all with an account. Download it and try the first one this afternoon.

apache-2.0 · open source

the core is open source

the watcher — the part that reads the sensors and sounds the alarm — is free and open source. it runs entirely on your own machine, needs no account of any kind and talks to no server. you can read every line of it.

that is the whole product, not a trial of one. nothing is held back to make you pay: the paid tier adds reach, and takes nothing away.

read the sourcegithub · apache-2.0
$ leavesafe --headless
daemon running · six sensors
armed 14:22 · holding
input 14:47 · siren on
alert delivered

packs of days

same wi-fi, or any network

the free version talks to your phone across your own wi-fi. pro adds an account and a real app, so the alert finds you on any network at all.

laptop phone
same wi-fi you
another network
network
same wi-fi onlyboth ends on cafe-guest
alert reaches you
in the roomwhile the page stays open
devices
this machineon nobody's list — there is no server to be on
how far it got
0 mas far as the wi-fi goes

inside your own wi-fi this is the whole product. six sensors, the siren, the audit log, the disarm pin — open source, no account, no server. every phone on that network hears it, and the laptop sounds whether a phone is awake or not.

pro is that same product on any network. the alert does not stop at the edge of the wi-fi — it finds you on mobile data, in another building, in another city. and once there is an account there is a list: every machine you have paired, what it last reported and when it was last seen, with any of them signed out from wherever you happen to be standing. nothing is removed from the free version to make room for it.

open source

$0

  • six sensors on the watched computer
  • its own siren, escalating
  • audit log, disarm pin
  • every phone on your own wi-fi
  • no iphone or android app
  • same wi-fi only, page kept open
downloadgithub · releases

pro

packs of daysprice shown in the store

  • iphone and android application
  • any network — mobile data, another wi-fi, another city
  • every machine on one list — named, with what it last reported and when it was last seen
  • up to ten of them, any one signed out from anywhere
  • an account that is a sixteen-digit key, no e-mail
  • push notifications — the alarm reaches you with the application closed

invite one person

the only way anyone sees your machine is a code you hand them, and it works once

  1. a café, and you have to get upthe laptop is armed on the table. your own phone is at three per cent, on a charger by the wall.
  2. you hand your friend the codea qr across the table — good for an hour, a day, a week, a month, or until you take it back
  3. their phone watches it for youthey see whether it is still armed, and they get the alarm the moment a sensor disagrees. that is all they see — not your account, not your other machines, not where you are.

either of you can end it, and if neither does, it ends by itself

openin the phone app — arriving on the app store and google play

questions

before you download

does it need an account?the open-source version does not — it runs on your machine and reaches no server. pro does: an account that is a sixteen-digit key, with no e-mail address and no password attached to it.
what if my phone is asleep?the laptop's own siren sounds regardless. the phone is the convenience, not the alarm.
why does the free version need the same wi-fi?because there is no server in the middle. your phone talks straight to your laptop, which only works while both are on the same network.
what happens when my pro time runs out?the laptop keeps watching and keeps sounding — that half is open source and runs on your own machine, with no server involved. what stops is the part the account pays for: the alert finding you on another network. taking back a guest’s access keeps working whether you have paid or not.
is the installer signed?not yet, so windows will warn you. the sha-256 is printed beside the download so you can check the file yourself.
Download LeaveSafe