Introducing SWD
The new era of
interactive documentation
is here.
A Sealed Web Document is one file that holds a whole interactive site: HD video, audio, live 3D, data explorers. Send it to anyone. They double-click, and it opens.
No installation required to open.
Free on macOS, Windows, and Linux. The app packs files; reading one needs nothing.
Export something interactive to a PDF and everything that moved stops moving. A Sealed Web Document sends the real thing: one file, double-click to open. Opens in any browser.
Zero attack surface
No exposure to bad actors.
The document and the viewer that runs it are sealed together into one file. Opening it installs nothing and reaches nowhere, so there is no path for anyone to slip in and nothing to leak out.
-
No network, ever
It opens no connection. Fully offline, so there is no channel in or out.
-
Sealed both ways
Nobody can slip code in, and no data can leak out.
-
Nothing to install
No runtime, no plug-in, no account. The viewer travels in the file.
-
Always identical
One file, any browser, any machine. Exactly what you sealed.
One file holds all of it.
A whole interactive site in a single .swd.html. It carries its own viewer, so the person you send it to just double-clicks. No app, no account, no connection.
It holds anything you could publish as a static site. Because it runs no server while it's open, the things that genuinely need one, live logins, databases, and payments, stay where they belong. A simple rule: if it needs a server, it's a service; if it can be sealed, it's a document.
-
HD video and audio
Walkthroughs, narration, and loops play inside the file. Nothing streams, so it works offline and opens instantly.
-
Live 3D and animation
Spin a model, scrub a sequence, drag through a scene. Real objects the reader can move, not screenshots.
-
Charts, calculators, tables
Filter the chart, run the calculator, sort the table. The reader works the actual numbers.
-
Decks and reports
A pitch deck, a research report, or a product manual as one file. Every video, chart, and control still works when it lands.
What it opens up
Interactive documents, for anyone you send them to.
Send a working document like any file. No installation required to open it. Here is where that changes things.
Field and inspection reports
Photos, measurements, and diagrams in one file that opens on site with no signal, and proves it was not edited later.
Researchers
Send the paper with the data explorer and figures the reader can poke at.
Students and teachers
Hand in, or hand out, one file that runs the animation and the worked example.
Governments and institutions
A public record that opens offline years from now, and shows if a byte was changed.
Contracts and filings
Sealed, readable without a portal, and provable if anyone alters them.
Product and hardware manuals
An interactive manual with 3D parts and install video that a customer opens offline, long after any product page is gone.
Free & Plus
Free to make and open. Plus adds the pro tools.
Making, opening, and reading sealed documents is free for everyone, with no account. Plus adds converting back to project folders, saving any URL, encryption, signatures, and presentation tools.
The full app. Make, share, and read sealed documents on any computer.
- ▪ Make unlimited web projects into Sealed Web Documents
- ▪ Comment on and reseal SWD files
- ▪ Connect AI to your workflow through MCP access
Free, no card, no signup.
$125.64 billed once, every three years. Best rate.
- ▪ Everything in Free
- ▪ Convert any SWD back to project folder format
- ▪ Save any URL as a .swd file
- ▪ Password protect and encrypt SWD files
- ▪ Add comments and annotations to any project
- ▪ Presentation mode with presenter notes
- ▪ Add secure signature boxes with certificate details
Payment processed through Stripe.
Prices in USD, intro pricing limited.
Making, opening, and reading stay free for everyone.
Built for AI
Just ask your AI to make one.
SWD Editor comes with a Model Context Protocol server. Connect it once, and any AI assistant that supports MCP can make, read, and sign Sealed Web Documents for you. Describe the job in plain language and it handles the files. It runs entirely on your machine, with no cloud and no sign-in.
- ▪ Seal a folder, or a live web page, into one .swd
- ▪ Read, verify, and pull details out of any .swd you receive
- ▪ Sign a document with a key you hold (proves integrity, never invents an identity)
Connect it to your AI
Add the SWD MCP server to the assistant you already use. Pick yours:
{
"mcpServers": {
"swd": {
"command": "node",
"args": ["/absolute/path/to/swd/mcp/swd-mcp.js"]
}
}
}Runs locally over stdio. Needs Node.js 18+ and the SWD repo checked out. No account, no network.
More informationTrust
Safe to send, safe to open.
A sealed document keeps to itself. It stays on the computer you open it on and does nothing behind your back.
It stays offline
A sealed file never reaches out to the internet while it's open. It can't load anything from elsewhere, and it can't send anything out. What you open is all there is.
You can tell if it was changed
Each file carries a small check of its own contents. If even a single word is altered after it's sealed, the reader shows it, so you always know you're seeing the real, unchanged file.
Sign it and add signatures Plus
Sign a file to show it's yours and unchanged, and add signature fields so the people you send it to can sign too. Anyone can check a signature for free; making and requesting them is a Plus feature.
Lock it with a password Plus
Protect a file with a password and it's encrypted with AES, the same standard banks and messaging apps use. It unlocks right in the reader's browser. Send an unlocked copy and anyone can open it.
FAQ
Questions, answered
Does the person I send it to need to install anything?
No. The file carries its own viewer, so it opens in the browser they already have. No account.
What browsers does it work in?
Any modern browser, on desktop or phone: Chrome, Edge, Firefox, Safari.
Is it safe to open a file someone sends me?
Yes. A sealed file can't reach the network while you read it. Its fingerprint shows if a single byte changed since it was sealed.
Can it run a login, a database, or payments?
No, by design. An SWD holds anything that can be a static site. Anything needing a live server while you read it (logins, databases, payments) is a service, not a document.
Is a sealed document private?
Not by default. The contents are readable, like any web page. To lock it, use Plus encryption: password-protected with AES-256-GCM, unlocked in the reader's browser.
Does a signature prove who made the file?
A signature proves the file is intact and which key signed it. It doesn't prove who holds that key. Treat it as proof of integrity, not identity.
Can my AI assistant work with these files?
Yes. SWD Editor includes a Model Context Protocol (MCP) server, so an AI assistant that supports it can make and read .swd files for you. It lands with the first release.
What's free and what's paid?
Making, opening, and reading are free for everyone, and you can always check a signature or sign a file someone sends you. Plus adds signing your own files and requesting signatures, editing, saving web pages, encryption, comments, and presentation tools. See Free & Plus.
Who makes this?
SWD Editor is made by YNX Labs, based in Canada. The viewer and the editor are the same app.
Send one file. It just opens.
Free to make, open, and read on macOS, Windows, and Linux.