Rendr
Rendr is a simple application to make designing Tumblr themes easier.
It allows you to specify a local theme file and a Tumblr URL. It then starts up a local webserver, serving up that blogs contents styled with your theme. When you reload the page the theme is reread, making it easy to view changes immediately.
Using Rendr
$ rendr http://blog.petervidani.com theme.htmlThen visit http://localhost:88625/ in you browser to see the results.
Optionally, you can save the output to a file by using the -o option. See
rendr --help for more details.
Download, source, and more information
Rendr is hosted on GitHub so it’s easy to peek at the source. The project page also contains more information about what Rendr can’t do. So you should go take a look.