Using the tools
Gridtray is free to use for personal and commercial work. Everything you make with the tools (palettes, QR codes, CSS, images) is yours, with no attribution required.
No warranty
The tools are provided as they are. We work to keep calculations correct, but you are responsible for checking results before relying on them, especially QR codes before printing and accessibility results before an audit. Contrast results are a guide and do not replace a full accessibility review.
Acceptable use
Do not use the tools to create QR codes that lead to malware, phishing or other harmful content, or attempt to disrupt the site.
Changes
We may update these terms. The date above shows when they last changed.