A browser extension that redraws the chat window as a plain document hides ChatGPT or Claude at work. Docognito does exactly that for both, swapping the page, the tab title and the icon the instant a chat loads. Shift plus Escape brings the real interface back the moment you need it.
Turn the screen into a document in one step
Hiding ChatGPT or Claude at work starts with a browser extension that redraws the page before anyone reads it. Docognito installs from the Chrome Web Store, asks for one browser permission, storage, and works on claude.ai, chatgpt.com and chat.openai.com, and no other website. Once it is running, an open chat renders as a document editor in place of a message thread, complete with a title bar, a menu bar and a page layout.
Add the extension
Install Docognito from the Chrome Web Store. It requests one browser permission, storage, the only permission Chrome shows before install.
Open ChatGPT or Claude
Load claude.ai or chatgpt.com in a fresh tab. A tab that was already open before installation needs a reload, because the extension only takes hold in a tab from the moment it loads.
Check the page, the title and the icon
All three switch at once as the page finishes loading, with no click required from you.
What the disguise actually changes
Three surfaces change. the visible page, redrawn as a document editor, so the thread you were reading a second earlier now reads as a page of body text. the browser tab title, so the tab strip stops naming the assistant in use, a change covered in detail in the tab title and favicon guide. the tab icon, so the small icon beside the title stops giving a hint too.
Together those three cover what a person's eyes register during a glance at your monitor, and none of them require closing the tab or losing your place in the conversation. The text you were reading, the draft you were typing, and the assistant's own reply all sit exactly where they were once the document view drops away again.
Nothing underneath the redraw changes. Typing, sending a message and reading a reply still happen in the real ChatGPT or Claude interface, the same one that was there before you installed anything. The document view sits on top of it as a layer, so a reply that is still writing itself out continues exactly as it would with the disguise off, and a file attached to a message still uploads the same way it always did.
Bring it back with one shortcut
Shift and Escape, which both hides the disguise and brings it back. Press Shift and Escape together and the document view drops away, showing the real chat underneath exactly as it was, draft and conversation intact. Press it again and the document returns. The mechanics of that shortcut, including why it keeps working on a page that reacts to keystrokes of its own, are covered in the Shift plus Escape guide.
What a closer look still finds
The disguise covers what a glance takes in, not what a careful look would find. the address bar, which still reads claude.ai or chatgpt.com, sitting in the browser's own chrome above the page, a place no extension can reach. The Docognito icon itself sits in the toolbar, visible to anyone who opens the extensions menu on purpose. Neither of those matters to somebody walking past a desk for two seconds. Both matter to somebody standing behind a chair reading the screen deliberately.
This hides the screen, not the network or the device it runs on
Docognito redraws what is on the monitor. It has no effect on anything a workplace network, proxy, DNS log or monitoring agent can see or on anything a managed or employer-administered device can see. A company laptop with monitoring installed reports the same activity whether the tab looks like a chat window or a document.
Where this earns its keep
The disguise is built for the two or three seconds a colleague's eyes cross a monitor on the way past a desk, or the moment somebody leans over to ask a question. In an open plan office with a screen facing a walkway, or a seat near a manager's, that covers most of the actual exposure most people have during a working day. The same logic applies to a shared desk in a coworking space, a laptop open on a kitchen table with family walking behind it, or a classroom where a teacher circulates between rows while students work. In each case the exposure is brief and visual, and a page that reads as a document rather than a chat window is enough to pass it.
It does nothing for a scheduled screen share, which has its own separate answer, and nothing for a monitored device, which has another one again. Knowing which case applies to you is most of the decision.
Where a page disguise fits among the usual methods
Incognito windows, privacy screen filters and separate browser profiles are the other things people reach for, and each solves a real but different problem. None of them touch what the page itself looks like.
| What people try | What actually happens |
|---|---|
| Open an incognito window | History is not saved, the page still looks exactly like ChatGPT or Claude |
| Add a privacy screen filter | Blocks an angled glance, does nothing for a straight-on view or a screen share |
| Use a separate browser profile | Keeps accounts apart, the page itself is unchanged |
| Install a page-redrawing extension | Changes what the tab actually shows, on any profile, at any angle |
The first three narrow a specific kind of exposure without touching what is drawn on screen. Only the fourth changes that, which is the gap Docognito is built to close, and it works alongside whichever of the other three you already use.
A glance and a monitored network call for different answers
For a glance rather than a stare, install the extension, leave it running, and use Shift plus Escape whenever somebody approaches. If the risk is a monitored network or a managed device, no browser extension answers that, and treating this one as though it does only produces a false sense of cover. Add Docognito for the first case, and address the second one on its own terms.