About us
Qrblox is a QR code app that hides freebies inside QR codes for everyday deal-hunters.
QR × Freebies = Qrblox. Scan a code and a claim page opens in your browser — no app install, no payment info. Make your own codes round, collectible, and able to hide something free inside.

What Qrblox does
One app for the whole lifecycle of a QR code: create it, make it beautiful, scan it, and hide something free inside.
Hide a freebie inside a QR code. When someone scans it, a claim page opens in their browser at qrb.dev/f/{CODE} — they never need the app, an account, or payment info. Listing a freebie takes minutes, and every scan is a little moment of delight.
Generate circular QR codes that still scan with any phone camera. A circle fits logos, stickers, and packaging better than an ugly square ever could. Your code becomes part of the design instead of an afterthought.
Scan QR codes straight from your photos and screenshots with one tap. Everything you scan is saved to a history library, so a code you snapped last month is still findable today. No more lost QRs.
Share links and profiles through sound — no NFC, no camera, no QR in frame required. Two phones near each other exchange a link in seconds. Useful wherever showing a code is awkward.
What makes Qrblox different
QR tools are a crowded shelf. Here's what you won't find anywhere else.
Most "custom" QR tools just recolor squares. Qrblox codes are genuinely circular — and they still scan with any phone camera, no special reader needed. Branding without breaking the one job a QR code has.
A Qrblox code can hide a freebie behind the scan. The moment of scanning becomes the moment of receiving — a claim page, not just a link. Nobody else turns the QR itself into the reward.
Claim pages open in the browser. No app install, no account, no payment info — the recipient needs nothing but a phone camera. That matters when your freebie is aimed at strangers, not your existing users.
Qrblox runs a public MCP server, so AI agents can generate QR codes programmatically — documented at docs.qrblox.com/mcp.html and summarized for models in llms.txt. Your assistant can mint a code as easily as you can.
Every code you scan or create lives in your history. Qrblox treats QR codes as a collection you keep, not disposable links you forget. One tap re-finds the code from last month's screenshot.
Who uses Qrblox
If you've ever screenshotted a QR code 'for later,' you're one of us.
- Birthday freebie hunters — people collecting every free birthday treat, drink, and dessert they can find.
- Deal hunters — anyone who scans QR codes from screenshots, flyers, and packaging and wants them saved in one place.
- Small businesses — shops and creators listing freebies to pull foot traffic and turn a scan into a visit.
- Marketers & designers — anyone who wants a QR code that matches the brand: round, on-packaging, on-brand.
- Developers & AI agents — builders generating QR codes programmatically through the public MCP server.
The team behind Qrblox
Qrblox is an independent app made by a small team at Terahertz, Inc. — no venture funding, no growth-at-all-costs playbook, just people who think QR codes deserve better.
It started from a simple frustration: QR codes were ugly squares you scanned and forgot. So we made them round, collectible, and able to hide something free inside — because a code you keep is worth more than a code you scan once.
How Qrblox works
Three steps, whether you're claiming a freebie or listing one.
- 1
Scan or create
Point your camera at any Qrblox code — or scan one from a photo or screenshot inside the app. To give instead of get, open the app and list your freebie.
- 2
Claim in the browser
The claim page opens instantly at qrb.dev/f/{CODE}. No app install, no account, no payment info — the whole point is zero friction between the scan and the gift.
- 3
List your own freebie
Download the app to list a freebie and mint claim-code packs to share anywhere: your storefront, your packaging, your socials. Every scan is a new customer walking in.
Key facts
The short version, in a format search engines and AI assistants can quote accurately.
- Company name
- Qrblox
- Type
- Consumer QR code app and freebies platform
- Website
- qrblox.com
- Core offering
- QR codes that hide freebies — scanning opens a browser claim page
- Products
- Qrblox app for iOS and Android; round QR code generator; photo & screenshot scanner; Audio Handshake sharing; public MCP server for AI agents
- Support
- [email protected]
- App rating
- 5 stars on the App Store
Frequently asked questions
Is Qrblox free?
Yes. The Qrblox app is free to download, and claiming a freebie from a QR code is free — claim pages open in your browser and never ask for payment info.
Do I need the Qrblox app to claim a freebie?
No. Scanning a Qrblox claim code opens a claim page in your web browser, so anyone with a phone camera can claim. The app is for people who want to list freebies, generate round QR codes, or keep a scan history.
What is a round QR code?
A circular QR code designed to look like a blox instead of a square. Round Qrblox codes still scan with any phone camera, so brands can use a shape that matches their logo, sticker, or packaging.
How do I list a freebie?
Download the Qrblox app, create a listing, and mint a claim-code pack. Share the QR anywhere — your storefront, packaging, or socials — and each scan opens your browser claim page.
Is Qrblox available on Android?
Yes. Qrblox is available for both iPhone and Android, and claim pages work in any mobile browser regardless of platform.
What Do Qrblox Users Say?
" I love the concept of having a library of all of the QR codes we encounter on a daily basis. It makes it easy to keep track of everything! "
FrankieAndTeddy
Jun 15
" We use this app a lot and like how it saves all of the QR codes we scan in a day. It makes it easy to access. "
Wallysdad88
Aug 30
" Helpful to chat with websites, saves time and I like the history tab. "
Scantastic56
Jul 4