Full-page browser screenshots with context AI can use.
Capture authenticated Chrome pages, long dashboards, receipts, bug reports, and research pages as PNG files with URL, title, page dimensions, hashes, signatures, and optional server-attested timestamps.
What it is
The extension is a browser-specific capture path for pages where a normal macOS screenshot is not enough. It scrolls and stitches the active Chrome tab, embeds context into the PNG, copies the capture, and saves it to Downloads.
Full-page capture
Long web apps, dashboards, support records, and authenticated pages can be captured from top to bottom without manually stitching screenshots.
Verification metadata
Each capture includes hashes, local signature metadata, browser details, URL, page title, viewport size, and page height.
Stash History import
When Stash for Mac is running and has Downloads Folder access, downloaded stash-*.png captures are imported into History automatically.
How to download it
Install from the public Chrome Web Store listing, then pin the Stash icon in Chrome for one-click capture.
Add to Chrome
Click Add to Chrome and accept the permissions Chrome shows.
Pin Stash
Pin the extension icon so browser capture is always one click away.
Enable import
In Stash for Mac, grant Downloads Folder access so extension captures flow into History.
What gets added to the screenshot
Visible context banner
- Browser and page title
- Appearance and macOS version
- Timestamp and short capture ID
Machine-readable metadata
- URL, title, viewport, and page dimensions
- Part numbers for long multi-PNG captures
- Image hash and DOM hash
Proof fields
- Local ECDSA signature
- Local public key
- Server-attested timestamp when available
FAQ
What does the Stash Chrome extension do?
The extension captures the active Chrome tab as a full-page screenshot and embeds browser context, hashes, signatures, and optional attestation metadata into the PNG.
Does it upload screenshots?
No. The screenshot image is saved locally. When server attestation is available, Stash sends hashes and page metadata for timestamping, not the screenshot image or raw DOM.
How does it connect to Stash for Mac?
The extension saves captures as stash-*.png files in Downloads. When Stash for Mac is running and has Downloads Folder access, it imports those captures into History automatically.