Best sites for creating blogging templates online

You haven't mentioned the platform of your blog i.e. blogger, WordPress, Joomla etc. Moreover, I think creating your own template needs knowledge in programming and it is not that easy. All the template creators you see are generators of new templates. There you can just modify or completely change the appearance and layout of an existing template according to your interests. Here are some online free theme i.e. template generators.
1. dotemplate Needs no knowledge of HTML and is free to customise and download the file.
2. cooltemplate You can generate templates for popular platforms WordPress, HTML and Joomla etc.
3. Skingenerator Same as the above and this generator includes options even for Blogger.
Also there are some other popular tools like WordPress Theme Generator, Weebly etc. And you might have to register with these websites to start over.

Some websites where we can get templates and create your own website online are the following:

(1) Wix: It is a good and useful website that provides drag and drop with HTML5 capabilities.

(2) Weebly: It is also an amazing website. It also supports drag and drop features for template building.

(3) Webs: I is also an easy and useful website.

(4) Jimdo: I is easy o use website. No coding required in this site.

(5) Webstarts: It is also easy to use.

(6) Yola

(7) Moonfruit

(8) Jigsy

(9) IMCreator

(10) Webnode

Here are some cool and handy blog templates designer websites:

1. IM Creator
2. Dotemplate
3. PsycHo
4. TrixTG
5. CSSEZ
6. Firdamatic
7. Templatr
8. Eris' Template Generator
9. Weebly
10. Wix
11. Cooltemplate
12. Drupal Theme Generator

I have given here the most popular blog template generators websites list. You can choose the best suitable template generator for your blog based on which blogging platform you are using i.e.Blogger, wordpress, Drupal, etc.