Building a Fast, Free Online QR Scanner and Generator (Open Source)
Hi Dev Community! π I wanted to share a project I recently launched: QRScanner. Most online QR code tools out there are either hidden behind a paywall, filled with annoying pop-up ads, or force you to download an app.
Hi Dev Community! π
I wanted to share a project I recently launched: QRScanner.
Most online QR code tools out there are either hidden behind a paywall, filled with annoying pop-up ads, or force you to download an app. I wanted a clean, fast, and privacy-focused alternative, so I decided to build one myself!
it's fully hosted on Netlify and open-source.
π Live Demo & Repository
- Live Tool: [https://qrscaner.netlify.app/](https://qrscaner.netlify.app/)
- Features: Scan via Camera, Upload Images, and Generate custom QRs (WiFi, WhatsApp, Text, URLs).
π οΈ Tech Stack & Features
I kept the architecture lightweight and straightforward to ensure maximum speed directly in the browser:
- HTML5 / CSS3: Custom UI with a clean dark/light theme experience.
- Vanilla JavaScript: Fast decoding logic without heavy framework overhead.
- Privacy First: No data is sent to any server; everything happens locally on your device.
π‘ What I Learned
Building this project helped me understand browser-based camera permissions better and how to optimize image scanning directly from the device gallery efficiently.
I would love to get your feedback on the UI, performance, or any features you think I should add next. If you find it useful, feel free to bookmark it or star the repo!
Let me know what you think in the comments below! π
Originally published by Dev.to WebDev. Aggregated on AIWithGhost for educational purposes β full credit and traffic to the original publisher.