QR Code Reader Online

Read a QR code online in seconds. Scan it with your webcam or read a QR code from an image you upload — right in your browser, nothing to install. Works on any device, and every scan stays private on your machine.

Open the Online Scanner
Scan often or need offline use? Get the free desktop app
Runs in your browser No install Private

How to Read a QR Code Online

Use the online QR code scanner from any device in three quick steps. No app, no account, no waiting.

1

Open the Online Reader

Launch the Codex QR online scanner in your browser on Windows, Mac, or your phone. There's nothing to download or install.

2

Use Your Webcam or an Image

Point your webcam at the QR code, or upload and drag in a screenshot or photo to scan a QR code from a picture instead.

3

See the Decoded Content

The reader decodes the QR code instantly and shows exactly what it contains — a link, WiFi login, contact, or text.

Scan a QR Code Now

Read a QR Code From an Image

No camera in front of you? You can still read a QR code from an image. Upload or drag any screenshot, photo, or downloaded picture into the online reader and it decodes the QR code inside it — no webcam required.

It's the quickest way to scan a QR code from a picture on a laptop, decode a code you received in an email or PDF, or check a QR code that's already saved on your phone. Any image with a visible QR code works.

Read a QR Code From an Image

Upload or Drag & Drop

Drop a screenshot or photo straight into the scanner and get the decoded content in an instant — all in your browser.

See the Link First

Reveal the exact URL a QR code points to before you visit it, so a sticker or flyer can't send you somewhere you didn't expect.

Check What a QR Code Contains

Not every QR code is trustworthy. Before you follow one, you can check a QR code online with Codex QR: upload or scan it and the reader shows you the decoded destination — the full URL, WiFi details, contact card, or text — up front.

Seeing the real link before you tap it lets you spot a suspicious or mistyped address and decide whether to trust it. Because scanning runs client-side in your browser, the code and image never leave your device.

Check a QR Code Online

Why Use the Codex QR Online Scanner

A fast, private online QR code reader that works everywhere — from webcam or image, with nothing to install.

Works in Your Browser

Read a QR code online instantly — no app, no extension, no download. Just open the page and scan.

No Install, No Account

Nothing to set up and no sign-up. Open the online reader and start scanning QR codes right away.

Webcam or Image Upload

Scan live with your webcam, or upload and drag an image to read a QR code from a picture.

Reads All QR Types

Decodes URLs, WiFi, vCards, email, plain text and more, showing you clean, structured results.

Private & Client-Side

Scanning happens in your browser. Your images and codes aren't uploaded, so your data stays with you.

Any Device

Works on Windows, Mac, and phones. Whatever browser you're on, the online reader is ready to scan.

Open the Online Scanner

Prefer a Desktop App?

For heavy or offline use, install the native Codex QR scanner for Windows and macOS — free, no account.

The online reader is perfect for a quick scan, but if you read QR codes all day or need to work without internet, the native desktop app is the better fit:

  • Native apps for Windows and macOS (Apple Silicon and Intel) — runs 100% offline.
  • Scan from your webcam, image files, and screenshots, with continuous scanning for batches.
  • Reads every QR type and keeps a saved scan history you can search and copy.

Take a look at the desktop QR scanner page for the full feature list, or grab it right here:

Download for Windows Download for Mac

Frequently Asked Questions

Everything you need to know about reading QR codes online with Codex QR.

How do I read a QR code online?
Open the Codex QR online reader in your browser, then either point your webcam at the QR code or upload an image of it. The reader decodes the QR code instantly and shows you the content — a URL, WiFi login, contact card, email, or plain text. There's nothing to install and it works on any device.
Can I read a QR code from an image or screenshot?
Yes. You can upload or drag a photo, screenshot, or downloaded picture into the online reader and it will scan the QR code inside it — no camera required. This is the easiest way to read a QR code from an image on a laptop or when the code is already saved on your device.
Is the online QR code reader free?
Yes. The Codex QR online reader is free to use in your browser, with no account needed. Just open it, scan with your webcam or an image, and read the QR code content right away.
Is it safe to scan an unknown QR code?
Scanning is safe — reading a QR code just decodes its content. The risk is in blindly opening what it points to. Codex QR shows you the decoded URL or content before you visit anything, so you can check what a QR code contains and decide whether to trust it. Scanning happens in your browser, so your images aren't uploaded anywhere.
Do I need to install anything to use the QR code reader?
No. The online QR code reader runs entirely in your browser on Windows, Mac, or phone — no app, extension, or download required. If you scan QR codes often or need offline use, there's also a free native desktop app for Windows and macOS.

Read Your QR Code Online Now

Open the free online scanner and read a QR code from your webcam or an image in seconds — no install, fully private.

Open the Online Scanner