Sobre Generador de códigos QR
Type anything and the code appears instantly. Encode a link, a plain message, a Wi-Fi login your guests can scan, or an email draft with subject and body pre-filled.
Export as SVG when the code will be printed or resized. That format stays razor sharp from a business card to a billboard. PNG export renders at 1024 pixels for screens and slides.
The generator runs entirely in your browser. Codes are computed on your device from the text you type; nothing is uploaded, watermarked or expires.
Cómo usar Generador de códigos QR
- Choose the content type: Text/URL, Wi-Fi or Email.
- Fill in the fields for that type.
- Tune size, error correction and colors if you like.
- Download the SVG for print or the PNG for screens.
Wi-Fi and email codes
Guests join your network or open a pre-addressed email without typing a single character.
Vector-sharp SVG
The exported SVG scales to any size with perfectly crisp modules, ideal for print and signage.
Error correction you control
Pick level L up to H. Higher levels survive damage and logos overlaying the code, at the cost of density.
No expiry, no tracking
The code encodes your content directly. There is no redirect service in the middle, so it can never expire or be re-pointed.
How QR codes work
A QR code is a two-dimensional barcode that packs data into a grid of black and white modules plus positioning, timing and alignment patterns that let scanners read it at any rotation. The data is Reed-Solomon error corrected, which is why a damaged or partly covered code often still scans.
Error correction comes in levels L (7 percent recoverable) to H (30 percent). Level M is the safe default. Choose H if the code will be printed small, placed outdoors, or carry a logo in its center. Static codes like these contain the content itself, unlike dynamic codes that hide a redirect URL, so they work forever and leak nothing to a middleman.
Consejos para mejores resultados
- Keep the quiet zone, the blank margin around the code. Scanners need it.
- Dark code on light background scans most reliably; keep strong contrast when picking colors.
- For Wi-Fi codes, a level of M or higher helps guests scan from a distance.
- Test the printed size with your phone before running a full print run.
Preguntas y respuestas
Do these QR codes expire?
Never. The content is encoded in the code itself, not behind a link shortener, so it works as long as QR exists.
Can I use the codes commercially?
Yes. The output is yours, royalty free, including the SVG for print.
Why is my code dense?
Longer content and higher error correction both add modules. Shorten the text, use a URL shortener you trust, or drop to level M or L.
Is anything uploaded?
No. Encoding happens in your browser. The generator works even with your network disconnected.