QR & Barcode Reader
Read a QR code or barcode from a picture or your camera, and see exactly what is inside it — the full link, the Wi-Fi password, the contact details — before you act on it.
What it does
QR & Barcode Reader uses the cryptography built into your browser (WebCrypto) — the same standard algorithms your bank's site uses — on a file or a piece of text that never leaves this page.
When you need it
Before sending something sensitive by email or chat, when a file you received must be checked, or when you want to know whether a password or a signature holds up.
Limits and caveats
A strong algorithm is only as safe as the password or certificate behind it, and some checks — whether a certificate was revoked, say — need the issuer's servers, which the page says where it matters. Nothing is stored or logged. Everything happens in your browser, so the file never leaves your device.
How to qr & barcode reader
- Drop a photo or screenshot of the code, or use your camera.
- Read what is actually inside it.
- Open it only if you want to.
Everything happens on this device: no file is uploaded and nothing leaves the browser.
Frequently asked questions
- Why not just point my phone camera at it?
- Because your phone opens the link. A QR code is a link you cannot read, and every piece of advice about not tapping unknown links stops applying the moment the link is a picture. This shows you the destination first — the real host, the whole address — and only then offers to open it.
- Which codes can it read?
- QR codes everywhere. On Chrome, Edge and Android it also reads EAN-8, EAN-13, UPC, Code 39, Code 128, ITF, PDF417, Data Matrix and Aztec, using the browser's own decoder. Safari and Firefox do not offer that decoder yet, so there it is QR only.
- Does the camera image go anywhere?
- No. The camera frames are decoded in this tab and never leave it — nothing is recorded, uploaded or kept. Closing the page ends it.
- Do my files get uploaded?
- No. This tool runs entirely in your browser, so the file never leaves your device.