QR Code Studio

Free QR Code Generator with Codes That Never Expire

Make, design, check and read QR codes entirely in the browser. Nothing is uploaded, nothing is stored unless you ask for it, and there is no server in the path between a printed code and where it goes, so nothing can switch it off.

Zero runtime dependencies. CHANGELOG.md records what each release changed.

The offline app

qr-code-studio.html is the whole studio in one file. Download it from a release, open it from your own disc, and turn your network off: every part of it keeps working, because none of it ever needed the network.

Many QR code sites sell "dynamic" codes: the code points at their server, which forwards to your link, and the forwarding stops when the subscription does, usually after the code is printed. A code made in this file holds your link itself. There is no server in between, so there is nothing to switch off.

What it does:

• Create makes a web link, text, Wi-Fi, a contact card, an email, a phone call, a text message, WhatsApp, a map location or a calendar event, with more kinds under one menu. Presets are drawn with your own code, and the module shapes, corner squares, colours and gradients (with a contrast reading), a logo, a frame with a caption and the printed size can all be changed. The code is shown as a printer's proof, at its true width once the screen is calibrated against a bank card.
• Codes save as SVG, PNG, PDF, EPS, JPEG or WebP, copy to the clipboard, or print at their physical size.
• Scan reads a code from the camera, a picture or a pasted screenshot, and can remake it as a code of your own.
• Bulk turns a CSV file into a ZIP of codes or a PDF of label sheets.
• The library keeps saved designs and brand kits in a .qrlibrary.json file you save and open. It holds the look of a code and never what the code says.

How to check what it does rather than take it on trust:

• The file's first lines carry a Content-Security-Policy that names the sha256 of its one script and its one stylesheet and refuses every connection (default-src 'none', connect-src 'none'). Anything added to the file after it was built does not run.
• It keeps no cookies, no local or session storage, no database and no cache. The test suite opens the built file in Chromium, Firefox and WebKit, runs a whole session, and checks that no request left the page and nothing was left behind.
• Each release carries a SHA256SUMS file and a build provenance attestation, and the build is deterministic, so the file can be rebuilt from source and compared. RELEASING.md has the commands.

The file is also published in the npm package, as @hexpro/qr-code-studio/standalone.html. To build it from a checkout:

pnpm install --frozen-lockfile
pnpm build:all
open dist/qr-code-studio.html

Micro QR and rectangular Micro QR are offered under Encoding for printing that has no room for a QR code. Most phone cameras cannot read either, and the file says so wherever one is chosen.