TrarrenShot

Mac screenshot help

How to Scan a QR Code from a Screenshot on Mac

If the QR code is still visible on your Mac, open it at a readable size and scan the screen with the iPhone Camera app or Code Scanner. For a saved screenshot, use an image-based reader; in TrarrenShot, automatic QR detection can show a code’s decoded value in the Inline Editor so you can copy it or open a supported link without launching a separate scanner.

Ways to read a QR code from a screenshot

Scan the screen with an iPhone

If the code is still visible on your Mac, open it at a readable size and use the iPhone Camera app or Code Scanner. This is a free option for a code currently on screen.

Use an image-based QR reader

Save or open the screenshot in a tool that accepts images and decodes QR codes. This is useful when the screenshot already exists.

Detect it during capture

If the QR code is visible while you capture the screen, detection in the screenshot editor keeps the result and the next action together.

One practical workflow

Using TrarrenShot QR Code Detection

  1. 1

    Start One Shot

    Capture the screen or region that contains the QR code and open the result in the Inline Editor.

  2. 2

    Keep detection enabled

    Make sure Auto Detect QR Codes is enabled in General Settings.

  3. 3

    Choose a detected code

    Select the QR code result to view its decoded value.

  4. 4

    Copy or open the result

    Copy the value, or open a decoded HTTP, HTTPS, or TrarrenShot link.

See QR Code Detection details

Useful for

  • A QR code in a webpage or app
  • A QR code included in a screenshot
  • Several QR codes in one capture
  • Copying a payload into a browser, message, or document

What to keep in mind

  • Detection is automatic only when Auto Detect QR Codes is enabled in General Settings.
  • TrarrenShot can open decoded HTTP, HTTPS, and TrarrenShot links directly; other values can still be copied.
  • When more than one code is found, you can review individual values or copy their payloads as a labeled list.

Afterward

Copy the decoded value into the app where you need it, or open a supported link. For the capture workflow that leads into QR detection, see One Shot and the Inline Editor.

Frequently asked questions

Can TrarrenShot read a QR code from a screenshot?
Yes. With Auto Detect QR Codes enabled, the Inline Editor scans the screenshot or its current selection and shows detected QR code values.
Can I copy a decoded QR code value?
Yes. Select a detected QR code and choose Copy Value. When several codes are found, you can also copy their payloads together as a labeled list.
Which QR code links can TrarrenShot open?
TrarrenShot can open decoded HTTP, HTTPS, and TrarrenShot links. Other QR payloads remain available to copy.
Can I scan a QR code on my Mac screen with an iPhone?
Yes. If the QR code is still visible on your Mac, open it at a readable size and scan the screen with the iPhone Camera app or Code Scanner. Apple documents both methods.
Can I turn off QR code detection?
Yes. Turn off Auto Detect QR Codes in General Settings to stop automatic detection in the Inline Editor.