Build a flag from real vexillological pieces — fields, crosses, stripes and charges. See it judged live against NAVA's five "Good Flag, Bad Flag" principles, then export crisp SVG or PNG. Everything runs in your browser.
Principles from the North American Vexillological Association. The color and simplicity checks are computed; symbolism and distinctiveness are reminders only you can judge.
The link encodes your whole design — anyone who opens it sees the same flag. PNG renders at 1200px wide.
Click a swatch to apply it to the selected charge (or the first field color). Aim for two or three colors total.