El Niño QR code generator
Round dots change colour as they spiral out from the middle of the code, running from red and orange through green and teal to blue and violet, like a swirling sea-temperature map. The shapes stay simple so the colour does the talking, and the whole pattern feels warm, tropical and energetic.
The preview shows ariaqr.com until you type your own link. Scan the preview with your phone before you print.
PNG is 2048 px for screens and print; SVG scales to any size. Free for personal and commercial use, no watermark.
Works well for
- Surf school and board shop signs
- Travel agency and beach resort cards
- Summer festival wristbands
- Climate and ocean science talks
Printing tip
Keep every colour dark and saturated on a white background, since pale yellows and light greens scan poorly, and print at least 2.5 cm (1 in) across.
Static code: it never expires, but the link can't change after printing. Need edits or scan counts? Make a dynamic code.
Questions
Does the colour swirl change how the code scans?+
No. The colour only changes the dots, not where they sit, and every shade stays dark against the white panel. The code uses the highest error correction level and the design is tested with real QR code readers.
Can I use it outdoors?+
Yes, but use a weatherproof sticker or laminate and check for glare before you print many.
Is it free for business use?+
Yes. Downloads are free for personal and commercial use with no watermark.
More designs
All 99 designs
The next step
Make the code the artwork.
These tools make and check classic codes. AriaQR turns your photo, logo or illustration into the code itself, verified on real decoders before you download, with a link you can edit and track.
