Capture
Capture in Rio takes a screenshot of part of a page. Press Shift+Cmd+2, drag over the area you want, and the image goes to your clipboard, ready to paste into Slack or a document. Download saves it as a PNG. Capture text copies the words in an area instead. Rio is free and open source.
A pricing table, straight into Slack
A teammate asks which plan you picked. You have the vendor's pricing page open. Press Shift+Cmd+2. The page dims; drag a box around the pricing table. A bubble says the screenshot is on your clipboard and shows it. Switch to Slack, press Cmd+V, send.
Take a capture
- Press Shift+Cmd+2, or choose File, Capture.
- Drag over the part of the page you want.
- Paste the image where you need it, or click Download to save it as a PNG.
The capture always starts on the page you are looking at, whichever space you are in and with the sidebar shown or hidden. Press Shift+Cmd+2 again to start over, or Esc to stop.
Four ways to start it
- Shift+Cmd+2, Rio's own key. macOS keeps Shift+Cmd+3, 4 and 5 for its screenshots.
- File, Capture in the menu bar.
- The command bar. Press Cmd+T and type capture, or screenshot.
- Site controls. The sliders button next to the address opens a panel whose Screenshot tile starts a capture. See Site controls.
Capture text
The same panel has a Capture text tile. Drag over any area of the page, such as a chart's labels, a slide in a paused video or a scanned receipt, and macOS reads the text in it. Rio puts the text on your clipboard and says so in a toast.
Where it lands
- The clipboard, first. In a private window, the image stays out of your clipboard history.
- Download in the bubble saves a PNG with your downloads, so you can find it in the Library under Downloads.
- Screenshots from macOS's own keys show in the Library under Media, grouped by day, so you can drag them into Gmail or Slack from the sidebar.
With VoiceOver on, Shift+Cmd+2 takes the visible page at once, since a drag is not practical with a screen reader.
Questions
What is the shortcut for a screenshot in Rio?
Shift+Cmd+2. File, Capture and the command bar's Capture row start the same capture. macOS's own Shift+Cmd+3, 4 and 5 keep working as usual.
Where does the screenshot go?
To your clipboard, ready to paste. A bubble shows the image with a Download button that saves it as a PNG with your other downloads, so it also shows in the Library.
Can Rio copy text from an image or a video?
Yes. Capture text, in the site controls panel, lets you drag over any area of the page. macOS reads the text in it and Rio copies the text to your clipboard.
Does Capture work with VoiceOver?
Yes. With VoiceOver on, Shift+Cmd+2 captures the visible page at once, since a drag is not practical there.
Sources
- Rio releases, build 1446: Shift+Cmd+2 capture from File and the command bar (November 12, 2026)
- Rio source, Capture and its Screenshot alias on Shift+Cmd+2 (commands/engine.ts)
- Rio source, the Screenshot and Capture text tiles (ipc/extensions.ts)
- Rio source, the site controls panel (SiteControlsPopover.tsx)
- Rio source, the Library's Downloads and Media lists (libraryModel.ts)
