Security
Safe to open. Even from a stranger.
HTML is powerful — that's the point, and the risk. So an Origami deck you didn't author opens locked and sandboxed, makes zero network requests, and shows a padlock until you decide to trust it. Read anything freely; unlock only what you choose to.
The lock
A file from a stranger opens locked.
Origami handles powerful files the way your office suite handles macros. A deck you didn't author that contains anything active opens locked and sandboxed: scripts don't run, remote URLs and embeds don't load, and you see a padlock. Read it, present it, print it — nothing executes and nothing phones home.
Trust the sender? Unlock it, and it comes alive — in your own browser, on your own machine, still with no surprise traffic unless the deck plainly asks. One file to trust, not an app to install.
The padlock above is itself just inert, declarative SVG — drawn safely, executing nothing. Which is the whole idea.
Locked, but not lifeless
What a locked deck can — and can't — do.
Scripts stay inert · remote URLs & embeds don't load · no network, no fetch, no tracking · nothing writes to your disk.
Text, layout and theme · declarative SVG motion (animated logos, a diagram that breathes) · click-through, present mode and print.
Motion everyone should see is written as declarative SVG, which can't execute anything. So it plays the same locked or unlocked, and never trips the padlock — which is exactly why you can safely carry an animated deck around and why an unlock is a deliberate, informed choice, not a reflex.
Open · read · trust
You're always in control of the unlock.
- It opens lockedAnything active in a deck you didn't author starts sandboxed, with a visible padlock. No prompt to dismiss, no setting to find — safe is the default.
- You read it freelyText, charts and declarative motion all render. You can present it and print it. Nothing runs, nothing connects to the network.
- You unlock to trustFrom someone you trust? One click lifts the sandbox — for that file, on your machine, on your say-so. The padlock is a decision you make, not one made for you.
How the whole format worksDownload a deck to tryPlay with one now