QR Code ScannerImage

Free QR Code Scanner - Scan and parse QR codes online with image upload and camera support. Local recognition, privacy protected. Try it now!

Scan Result

Please upload an image or start camera scanning

Usage Guide

1. Choose Scanning Method

The QR code scanner provides two convenient scanning methods. Choose based on your use case:

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Camera Scan: Click 'Start Camera' button to use device camera for real-time QR code scanning (suitable for phones, tablets, computers with cameras)

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Image Upload: Click 'Upload Image' button to select an image file containing a QR code for scanning (suitable for saved QR code screenshots or photos)

When using camera scanning for the first time, the browser will request camera permission. Please click 'Allow'. If you denied permission, you can re-enable it in browser settings.

2. Camera Scanning

Use device camera to scan QR codes in real-time, quick and convenient:

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1. Start Camera: Click 'Start Camera' button, allow browser to access camera

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2. Aim at QR Code: Place QR code in the center of camera view, keep steady

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3. Auto Recognition: Scanner automatically identifies and highlights QR code area

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4. Get Result: After successful recognition, camera stops automatically, result displays below

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5. Stop Scanning: To stop, click 'Stop Scanning' button

Scanner automatically highlights detected QR code area and marks QR code outline with colored borders to help you aim accurately.

3. Image Upload Scanning

Upload image files containing QR codes for scanning, suitable for saved QR codes:

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Supported Formats: PNG, JPG, JPEG, GIF, WebP, BMP and other common image formats

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Upload Method: Click 'Upload Image' button, select image file from device

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Auto Recognition: Automatically scans QR code in image after upload

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Multiple QR Codes: If image contains multiple QR codes, recognizes the first one detected

Ensure image is clear and QR code is completely visible. Blurry, distorted, or partially obscured QR codes may not be recognized.

4. View and Use Results

After successful scanning, results display in the result area. You can:

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View Content: Fully displays text, links, or other information contained in QR code

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Copy Result: Click 'Copy' button to copy result to clipboard

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Visit Link: If it's a URL, click result text to open link directly (in new tab)

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Continue Scanning: Click 'Start Camera' or 'Upload Image' to continue scanning other QR codes

5. Scanning Tips

Practical tips to improve scan success rate:

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Good Lighting: Scan in bright environment, avoid shadows and reflections

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Keep Steady: Keep device steady when handheld, avoid shaking

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Proper Distance: Adjust distance so QR code occupies 50-80% of view

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Face Forward: Try to face QR code directly, avoid excessive tilt angles

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Clear Images: When uploading images, ensure image is clear and QR code is complete

FAQ

Q: Why can't I start the camera?

A: Possible reasons: ① Browser doesn't have camera permission (please allow camera access in browser settings) ② Camera is occupied by another app (close other apps using camera) ③ Device has no camera or camera malfunction ④ Using HTTP protocol (some browsers require HTTPS for camera access). Suggestions: Check browser permission settings, ensure using HTTPS, or try image upload method.

Q: What if scanning fails?

A: Possible reasons: ① QR code is blurry, damaged, or partially obscured ② Insufficient lighting or severe reflection ③ QR code too small or too far away ④ QR code color contrast insufficient (like light-colored QR codes) ⑤ QR code distorted or tilt angle too large. Solutions: Ensure QR code is clear and complete, good lighting, adjust distance and angle appropriately. If camera scanning fails, try taking a screenshot and using image upload method.

Q: What types of QR codes are supported?

A: This tool supports standard QR Code format and can recognize QR codes containing various content: URL links, plain text, phone numbers, email addresses, WiFi information, vCard contact information, etc. Does not support other types of barcodes (like EAN-13, Code 128, etc. one-dimensional barcodes) or special format QR codes (like WeChat Mini Program codes).

Q: Is the scanned data secure?

A: Completely secure. All calculations are performed locally in your browser, data is never uploaded to servers, completely offline processing. Camera footage and uploaded images are only processed on your device, not saved or transmitted.

Q: Can I scan QR codes on screen?

A: Yes, but not recommended. When using camera to scan QR codes on screen, recognition may fail due to screen reflection, moiré patterns, refresh rate, etc. Better methods: ① Right-click QR code image, select 'Save Image As' to save locally ② Use 'Upload Image' function to scan saved image ③ Or use screenshot tool to capture QR code then upload.

Q: Why is phone scanning faster than computer?

A: Phones usually have better rear cameras with autofocus, and handheld operation is more flexible for adjusting angles and distances. Computer front cameras usually have lower resolution, no autofocus, and fixed position makes adjustment inconvenient. Suggestions: On computers, prioritize image upload method; on phones, camera scanning is more convenient.

Q: How to use results after scanning?

A: Depending on QR code content type, you can: ① URL links: Click result text to open webpage directly ② Plain text: Copy for other uses ③ Phone numbers: Copy to make calls ④ Email addresses: Copy to send emails ⑤ WiFi info: Manually enter network name and password to connect (some devices support auto-connect) ⑥ vCard: Save contact information. All results can be quickly copied to clipboard via 'Copy' button.

Use Cases

Daily Scanning

Scan QR codes on product packaging, promotional posters, business cards, payment codes in daily life to quickly get information or complete operations.