Android and browser · QR and NFC
We show you the exact math behind every verdict.
QR Guardian analyses every QR code, link and NFC tag on your own device. It shows you what it found, how much each signal weighs, and how far it landed from the danger threshold.
- Your link never leaves your device
- QR and NFC, one engine
- A verdict with its arithmetic
- Free, no account, no limits
The quishing problem
QR codes hide their destination. Criminals know it.
A QR code is a link you cannot read. Fake parking meters, tampered restaurant menus, counterfeit invoices and payment stickers all exploit the same blind spot: you scan first and find out later.
Most scanners open the link immediately. QR Guardian was built on the opposite principle — analyze first, open only when it is safe.
- Verdict before the link opens
- Always
- Risk signals evaluated per scan
- 20+
- Cost of protection
- Free
Verdict theater
Four verdicts. Zero guesswork.
Every scan ends in one of four states. This is a simulation of what you see the moment analysis completes.
SAFE
https://veritasdigital.tech
Every layer passed. Open actions unlock, including smart actions like calling, saving contacts or copying a WiFi password.
Simulated scenarios — this demo runs entirely in your browser.
Features
Everything a scanner should be.
One app for scanning safely, acting quickly and creating beautifully.
Security engine x-ray
Five layers between you and a bad link.
Verdicts merge by maximum severity: a clean cloud response can never downgrade a local detection.
01
URL safety gate
Every scheme is validated before anything is allowed to open. Unknown or dangerous schemes stop here.
02
Local blocklist
A bloom filter of known malicious domains answers instantly, entirely offline.
03
Phishing heuristics
20+ weighted signals: typosquatting, homograph attacks, Punycode, fake brands in subdomains, hidden redirects, executable downloads, suspicious ports.
04
Payload analysis
Non-URL codes are inspected too: open WiFi networks, premium SMS charges, crypto payment requests, embedded intents.
05
Cloud reputation
Google Safe Browsing, queried only with your consent. Results merge by maximum severity — the cloud can raise an alarm, never silence one.
No scanner can guarantee 100% protection. QR Guardian's promise is different: it will always analyze before opening, always show its reasons, and never charge you for safety.
Privacy vault
Your scans belong to your device.
History, favorites and statistics live in a local database on your phone. There is no account, no cloud sync, no remote analytics of your scans.
The single network call — checking a URL against Google Safe Browsing — happens only with your explicit consent, given once during onboarding and revocable at any time.
Read the privacy policy →- Scan history never leaves your phone
- Camera processing is fully on-device
- No account, no name, no location
- Cloud checks are automatic and transparent
Generator atelier
Create QR codes worth scanning.
Websites, WiFi, WhatsApp, socials and vCards — rendered with real craft, not decoration.
Three shapes
Classic, Dots and Liquid — genuine rendering styles with finder patterns kept scannable.
Your logo, centered
Automatic error-correction level H keeps the code readable with your brand inside.
High-resolution export
Crisp PNG export ready for print and screens.
Safe by construction
WiFi payloads are escaped correctly — special characters never corrupt your code.
Global readiness
16 languages. One standard.
Every string in the app ships in 16 languages, enforced at build time. If a translation is missing, the app does not compile.
- English
- Español
- Deutsch
- Français
- Italiano
- Português
- Русский
- 日本語
- 한국어
- 中文
- Tiếng Việt
- العربية
- Türkçe
- עברית
- हिन्दी
- Bahasa Indonesia
Download
Put a guardian between you and every QR.
Free on Google Play. No account. No subscription. Security is never behind a paywall.
Requires Android 8.0 or newer · v1.3.1