Welcome to Cute, we are glad you are here. I use Studio Plus to store and organize my designs. Not free but easy to use and has been good to me for 5 years.
In one of the answers Embird is mentioned. The Iconiser gives pictures for all designs, but you can not use it without the Basic Embird module. That is great for customising your designs, so I can recommend that, but it is not what you are looking for at the moment. SewIconz does the same without having to buy other software as well.
What you can do to organise your designs is to save them in an organised way to different files.
You can categorise them on subject: animals, flowers, children, FSL, you name it, or on designer/website.
I file per website/designer and add the conditions of the site in a word-document (can you sell embroidered items or is it personal use only). Then I make subfiles per category.
My own designs are saved with info which I can add in my software. That makes a search very easy. I could do that with bought designs and freebies as well, but find that too time consuming.
Welcome to Cute and thank you for sharing the web site.
I have not used this program but it has been mentionend here a number of times. It is free and called Wilcom TrueSizer.
Hi Ro! I like your kitty picture! What kind of computer do you use? I use a Mac and have a great program for viewing and organizing files called Stitch Buddies. I don't know how Windows users actually view their designs. Welcome to Cuties!
Embird is a name I see on here quite often as a good software. I'm sure another Cutie will be able to get more specific with you. I just want to say WELCOME!
Thanks for the lovely welcome with picture! I have to learn how to do more artisitic things like you and Jan have done here!