A QR code generator for Chrome. Turn the page you are on, a Wi-Fi network, a contact card or any link into a scannable code, made on your device.
Nothing you type is uploaded. There is no account, no tracking and no server round-trip: the QR matrix is computed in the popup by a bundled, dependency-free encoder. A Wi-Fi QR code carries your password in plain text and a contact QR code carries your phone number, which is a good reason to make both of them on your own machine.
From the Chrome Web Store: Cleanor QR Code Generator
From source (unpacked):
git clone https://github.com/cleanor-app/qr-code-generator-chrome-extension.gitOpen chrome://extensions, turn on Developer mode, click Load unpacked, and select the cloned
folder. It is a plain Manifest V3 extension, so any Chromium browser will load it (Chrome, Edge,
Brave, Opera, Arc, Vivaldi).
- Click the toolbar icon, or press
Alt+Shift+Q. - The popup opens with a QR code of the tab you are on, already drawn. Scan it with your phone.
- Or pick another content type (Wi-Fi, Contact, Event and so on), or paste anything into the text box.
- Download PNG, SVG, Copy, or Print.
You can skip the popup entirely: right-click a link for QR code for this link, right-click a selection for QR code for "…", or right-click the page for QR code for this page. Each opens a small window with the code ready to scan.
The popup reads the active tab's URL when you open it and encodes it straight away, tagged "This
page". No copy, no paste, no retyping a long address into a phone. It is the fastest way to move a
page from a laptop to a phone, or to hand a link to the person sitting opposite you. The URL is read
through activeTab, only at the moment you open the popup, so the extension has no standing access to
the sites you browse.
Downloads are named after the site (example.com-cleanor-qr.png), not download (3).png.
→ Make a QR code for a website
Enter the network name (SSID), the password and the security type (WPA/WPA2, WEP or None) and
share a code that guests scan to join, with no password read out loud. The extension writes the
standard WIFI: payload and escapes the characters that would otherwise break it (\ ; , : "), so a
password full of punctuation still encodes correctly. Because the code is built locally, the password
never leaves your computer.
The Print sheet captions the code with Wi-Fi: <your SSID>, which is the difference between a
guest scanning it and ignoring a mystery square on the wall.
Name, phone, email, organization and website become a vCard 3.0 record, so a scan offers to add you to
the phone's address book instead of showing raw text. The name is split into a display FN and a
structured N field automatically, and \ ; , are escaped in every field.
→ Make a vCard contact QR code
Eight one-click templates (Classic, Cleanor, Midnight, Ocean, Forest, Grape, Teal, Crimson), each vetted to clear a 4:1 contrast ratio. Under Customize: a solid or two-colour gradient foreground with an adjustable angle, any background, Square / Rounded / Dots modules, square or rounded eyes, and a centre logo.
Add a logo and the extension places it on a knockout panel sized to 26% of the code and raises error correction to High (30%) automatically, because that redundancy is what lets a scanner rebuild the modules the logo covers. A live scan-safety check warns you before you export something that will not scan: it flags a foreground-to-background contrast below 4:1, and any code that is lighter than its background.
→ Put a logo in the middle of a QR code
Each one is written in the format the scanning phone expects, so the scan triggers the right action instead of showing raw text:
| Type | Payload |
|---|---|
| Text / Link | the text as-is |
| Wi-Fi | WIFI:T:WPA;S:…;P:…;; |
mailto: with an optional subject and body |
|
| Phone | tel: |
| SMS | SMSTO:number:message |
| Contact | BEGIN:VCARD (vCard 3.0) |
https://wa.me/… with an optional pre-filled message |
|
| Location | geo:lat,lon |
| Event | BEGIN:VEVENT (iCalendar, all-day supported) |
Paste an email address or a phone number into the text box and the popup offers to switch you to the matching type.
- PNG from 128 px to 1024 px (default 512 px), with integer module sizing so the pixels stay sharp.
- SVG, vector, with any logo embedded as a data URI so the file is self-contained.
- Copy the PNG to the clipboard.
- Print a centred, vector-crisp 60 mm code with a caption.
- Error correction L / M / Q / H, forced to H while a logo is set.
The on-screen preview is oversampled and downscaled rather than upscaled, which is why it never looks blurry.
| Doc | What it answers |
|---|---|
| Make a QR code for a website | How do I make a QR code for a website, or for the page I am on? |
| Create a Wi-Fi QR code | How do I create a Wi-Fi QR code guests can scan to join? |
| Put a logo in the middle of a QR code | How do I put a logo in a QR code and keep it scannable? |
| Make a vCard contact QR code | How do I make a contact (vCard) QR code? |
data/qr-capacity.csv is the byte-mode character capacity of the encoder
in this repo, which is the mode URLs, Wi-Fi strings and vCards actually use: 160 rows, every QR version
(1 to 40) against every error-correction level (L, M, Q, H).
| version | modules | ecc | byte_chars |
|---|---|---|---|
| 1 | 21 | L | 17 |
| 1 | 21 | H | 7 |
| 10 | 57 | M | 213 |
| 40 | 177 | L | 2953 |
| 40 | 177 | H | 1273 |
Every number was generated by running vendor/qr/qr-core.js against inputs of growing length and
reading the version off the result, not copied from a published table. Cross-checked against the
ISO/IEC 18004 byte-mode figures at 12 cells (versions 1, 2 and 40 at all four ECC levels): all 12 match.
This engine implements byte mode only. Digits are therefore encoded at 8 bits per character rather than the 3.33 bits per character that the standard's numeric mode uses, so a digits-only payload needs a larger QR version here than a numeric-mode encoder would need for the same input: 17 digits at version 1 level L, where the standard's numeric mode fits 41. That is why this table is shorter than a published ISO capacity table, and it is the number to trust for codes this extension produces.
The popup encodes your text into a QR matrix with a vendored, dependency-free encoder
(vendor/qr/qr-core.js), the same engine that powers
cleanor.app/tools/qr-code-generator, and draws it to a
<canvas> for PNG and clipboard, or to an <svg> for vector download and print. No network request
is ever made to generate a code.
contextMenus, the right-click entries on links, selections and pages.activeTab, reads the current tab's URL when you open the popup, so "QR this page" works. No standing access to any site.clipboardWrite, only when you click Copy, to put the QR image on the clipboard.storage, remembers your style, error-correction level and export size, and briefly hands a right-clicked link or selection to the popup. Local, nothing synced or sent.- No host permissions, no browsing history, no analytics.
Yes, and it is MIT-licensed open source. There is no paid tier, no watermark on the codes, no sign-up and no scan limit. The same generator also runs free in any browser at cleanor.app/tools/qr-code-generator.
No. Every code this extension makes is static: the URL, Wi-Fi password or contact card is encoded directly into the pattern, so there is no redirect through anyone's server that could be switched off and no subscription that could lapse. The flip side is that a printed code's destination cannot be changed later. If you may need to repoint it, encode a URL on a domain you control and redirect it server-side.
No. The QR matrix is computed inside the popup by a vendored encoder (vendor/qr/qr-core.js) and drawn
to a canvas or an SVG. No network request is made to generate a code, so your Wi-Fi password, phone
number and contact details stay on your machine. The only outbound links are the cleanor.app links in
the footer, and only if you click them.
Yes. Open Customize, click Add image… on the Logo row and pick any image file. The logo is drawn on a knockout panel at 26% of the code's width, and error correction is raised to High (30%) for as long as the logo is set, which is what keeps the code readable. Test the scan before you print in volume.
It depends on contrast, and the extension checks it for you on every render. Scanners need dark modules on a light background: if your colours fall below a 4:1 contrast ratio, or the code ends up lighter than its background, a warning appears under the preview before you export. All eight built-in templates already clear that bar.
PNG (128 px to 1024 px) and SVG. Use PNG for a screen, a slide or a chat, and SVG for anything that gets printed, since vector stays sharp at any physical size. There is also a Copy button that puts the PNG on the clipboard, and a Print button that prints a vector code at 60 mm with a caption.
Yes. It is a standard Manifest V3 extension using only the extension platform APIs, so any Chromium browser can run it. Install from the Chrome Web Store, or clone the repo and use Load unpacked.
./pack-crx.sh # zip + signed crx (once a signing key exists)
./pack-crx.sh --zip-only # just the zipvendor/qr/qr-core.js is transpiled from the site's TypeScript source so the extension and the web tool
stay in lock-step. To refresh it after the site's encoder changes:
cd ../cleanor-web
./node_modules/.bin/esbuild src/lib/browser-qr-tools.ts --format=esm --target=es2020 \
--outfile=../Chrome/002-qr-code-generator/vendor/qr/qr-core.jsMore from Cleanor Labs, same principle: the file, the password or the image stays on your device.
| Project | What it is |
|---|---|
| image-compressor-chrome-extension | Compress and convert images in Chrome (WebP, AVIF, HEIC), right-click to save, full-page screenshots |
| gif-compressor-chrome-extension | Compress, crop and convert GIFs in the browser |
| figma-image-compressor | Figma plugin that compresses the images inside a file |
| wordpress-image-optimizer | WordPress plugin: bulk optimize, convert to WebP/AVIF, clean up the media library |
| browser-image-tools | The zero-dependency image library behind the tools |
| cleanor-mcp | MCP server giving AI agents image, QR and dev utilities |
MIT © Cleanor Labs. More at cleanor.app/chrome and cleanor.app/tools.