What this workspace does
Decoded QR values, code type, and a safe destination warning.
File scanner · browser local
Scan a QR code from an image
Scan a saved image, screenshot, or clipboard image locally. Native detection runs first; a lazy local decoder fills compatibility gaps. Links never open automatically.
Use it accurately
Native scanning is tried first. The lazy compatibility decoder also runs entirely in this browser when native support is missing or finds no result.
Private browser processing
Selected files are processed in the current browser session. Aftermath has no account, cloud file storage, or server-side file-processing job.
What this tool checks
Scan a saved image or screenshot for QR codes when you need to review decoded values without sending the image away. The browser displays each decoded value, reported format, and safety note, but never opens a link automatically. A decoded value is not proof that a link, destination, payment request, or source is safe.
What to choose and what you get
What to choose
- one saved browser-decodable raster image chosen or dropped
Result
- decoded QR values displayed for review and copying
Supported use
- QR codes visible in one saved photo or raster image
- Local review of decoded text or destinations without automatic navigation
Before you start
- PDF pages, multiple-image batches, and non-QR barcode intent belong to dedicated sibling routes.
- Detection does not authenticate the code, destination, product, or sender.
Supported formats
- Accepted formats: browser-decodable image, clipboard image.
- Output formats: text report.
Browser support and permissions
- Modern browser with JavaScript and a browser-decodable image; native detection or the bundled local compatibility decoder may be used.
- No camera, microphone, or screen permission is needed.
Choose the right settings
- Use this route for one saved image whose intended code type is QR.
- Use /scan-qr-code-from-screenshot for a screenshot or clipboard-first workflow.
- Use /scan-qr-code-from-pdf for PDF pages or /barcode-scanner-from-image for broader barcode formats.
Worked example
A saved event poster contains a QR code whose destination should be inspected without opening it automatically.
Starting facts
- The selected image can be decoded by the browser.
- Decoded text may itself be unsafe or misleading.
Observed operation: Scan the local raster with the available detector or bundled fallback and display every decoded QR value as text.
Review the result: Read the raw value and copy it only after checking the scheme, domain and surrounding context.
Boundary: Successful decoding does not establish that a link, payment request, contact or payload is trustworthy.
What you can do
Read a QR code from one saved image
Choose another tool when
- This route is not the screenshot-first clipboard workflow, a PDF page scanner, a batch reader, or a general barcode scanner.
- A decoded value does not prove that its source or destination is trustworthy.
If it does not work
- The browser cannot decode the selected raster image.
- A small, blurred, damaged, low-contrast, or obstructed QR code is not detected.
- Neither the native detector nor the bundled compatibility decoder returns a supported QR result.
Things to know
- Detection varies with image quality and browser support.
- Decoded links are displayed with a safety note but are never opened automatically.
- This reader reports encoded content; it does not verify authenticity or destination safety.
Privacy boundary
Selected images and decoded values stay in the current browser session and are not sent to an Aftermath processing service. How local processing is verified.
What this tool verifies
Checks the displayed limits and reports or creates decoded QR values displayed for review and copying from one saved browser-decodable raster image chosen or dropped.
Check before sharing
This route is not the screenshot-first clipboard workflow, a PDF page scanner, a batch reader, or a general barcode scanner.