Plain Tools

QR Code Scanner

Decode QR codes from live camera preview or uploaded images with local browser processing. Decoded values stay in your current session and are never uploaded.

About QR Code Scanner

QR Code Scanner is designed for people who want a practical browser-first workflow instead of uploading files to a third-party service just to complete a routine task. QR Code Scanner runs in your browser for local, private document handling. Process files directly on your device without a server-side upload step for core workflows. Scan QR codes from camera preview or uploaded images locally in your browser with no file uploads.

Core processing runs in your browser, so file bytes stay on your device for local workflows. That matters when you are handling work files, drafts, forms, exported data, or other material that should stay under your control until you decide to share the result. It also removes the usual upload delay, which keeps the workflow lighter and easier to repeat when you need to adjust settings and try again.

In most cases, people use QR Code Scanner to prepare documents quickly before sharing or archiving. handle privacy-sensitive files without third-party upload workflows. Before you publish, archive, or forward the output, do a quick review of the result because requires browser Barcode Detection API support. Some browsers may not support camera/image QR decoding.

How it works

  1. 1. Add the input or inputs you want to process in the QR Code Scanner workspace.
  2. 2. Choose the settings that match the output you want before starting the run.
  3. 3. Run QR Code Scanner directly in your browser and wait for the local processing step to finish.
  4. 4. Download the result and review it before sharing, archiving, or sending it onward.

Why use local browser tools

Local browser workflows reduce exposure for private files because the main processing path runs on your device instead of starting with an upload to a third-party service. That is useful when the document, image, text, or encoded payload contains work material, customer data, or anything you would rather review locally before sharing.

Browser-based tools are also direct. You open the file, run the operation, and download the result without waiting for remote queues or account-gated limits. You can review Plain.tools privacy claims in Verify Claims.

This page also includes answers to 3 common questions and links to 3 related workflows, so you can validate the process first and move to the next step without leaving the tool cluster.

Before you start

Upload

Use camera access for live scanning or upload a QR image from your device.

Result

Decoded text or URL appears immediately, with copy and optional open-link actions.

Local processing

Processing runs in your browser session. Files are not uploaded by default.

Limitations

Requires Barcode Detection API support for camera/image decoding. Unsupported browsers may need a Chromium-based alternative.

QR Code Scanner
Scan QR codes from camera frames or uploaded images using browser-only decoding. Files and camera frames are processed locally.
Native Barcode Detection API is unavailable. Falling back to local `jsQR` decoding. Camera and image scanning remain fully local in your browser.
Scan with Camera
Scan QR codes with camera access or upload a QR image for local decoding.
Scan from uploaded image
Upload PNG, JPG, or WEBP image files that contain a QR code.

Drop a QR image here, or click to browse

Image decoding runs locally in your browser

Click or drop files to continue

Decoded result
View decoded text or URL, then copy it or open it in a new tab.
Processed locally - no upload

No result yet. Scan with camera or upload an image to decode a QR code.

Frequently asked questions

Does QR Code Scanner upload my files?

Core processing runs locally in your browser for this workflow, so the file or input stays on your device during the main operation.

How do I use QR Code Scanner?

Open the tool, add your source file or input, choose the options you need, run the workflow, and download the result from the same page.

What should I check before sharing the output from QR Code Scanner?

Requires browser Barcode Detection API support. Some browsers may not support camera/image QR decoding. Review the generated output once before sharing it so you can confirm formatting, completeness, and file quality.

Related resources

Continue with related tools, comparisons, and practical guides.