So this 2 page post now is for girls from about 2 upwards, right up to 12, and more specifically, dresses, which I haven't covered comprehensively before. I've found literally hundreds of free PDF patterns for girls' dresses, and used many of them. Even though I've split it, it's going to be a long post! Page 1 (this one) includes only patterns for girls that come in sizes up to and including 6. And page 2 of this post covers patterns which can be also used from age 7 plus. Though you will find a lot for girls younger than 7 on page 2 as well, as some of the patterns go from (say) 18 months to age 8. It may seem a bit arbitrary to separate them into the second page, but my reasoning was, there are lots of patterns for younger girls - not so many for the older ones. As you'd expected, being free, some patterns work better than others. I've done my best to weed out the no-hopers. But I've tried to be fairly comprehensive - people like different styles.
To find links to patterns for girls from about 18 months or 2, up to 6, read on.