CheckThisQR
Stop scanning QR codes blind
What it does
Free tool that decodes any QR code and checks its destination against threat-intelligence data for phishing and malware — before you visit it. Upload a photo or scan live with your camera. No app, no signup, no limit.
Free QR code safety checker. Upload or scan a QR code and see the real destination link and a safety verdict before you visit it. No app, no signup.
Upload a photo or scan with your camera. We decode the code and check the destination for phishing and malware — right here, in a few seconds. These are the patterns behind most real-world QR code scams — recognizing the setup is often the fastest way to avoid falling for it. A fake sticker placed directly over a real payment code, leading to a lookalike site that collects your card details. A table-tent or menu code swapped for one that mimics the restaurant's real ordering or payment page. A QR code embedded in an email or attachment, used specifically to slip past link-scanning security filters. A text or email posing as a carrier or agency, using urgency about a package or payment to…from checkthisqr.com
Does the same job
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Safe Scanner is a simple, slim (350kb) web app which shows URL redirects, checks https and validates against Google Safe Browsing for scanned links. It also keeps a history which you can share. There are other apps out there but they are bloated and slow. Hope this helps someone.
AntiQuish: AI QR Code Scanner12d ago · play.google.com · ▲1AI detects unsafe QR links and fake sites.
- FSFree simple to use QR Code generator without the faff2021 · proqr.co · ▲19
More life & fun this month
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Life & fun · 10d ago · louisabraham.github.io
Photosynthesis fires two of your iPhone
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is
Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com