Learn how to install a Tumblr theme with our step-by-step guide. Easily customize your blog’s design by uploading and applying a new theme. Follow our simple instructions to get started!
Install New Theme (HTML)
Method 1 – Internet Browser
- Firstly, open the HTML file in your web browser.
- Secondly, right click on the page and click View page source. (Each browser is different).
- Once you have done this, copy all of the code and paste it into the Tumblr customize screen, click Edit HTML.



Method 2 – Text Editor (Windows)
- Firstly, open the HTML file in a raw text editor like Notepad, Notepad++, Sublime Text etc.
- Copy all of the code and paste it into Tumblr.
(This will not work with Mac Text Editor).
You can also google how to edit raw HTML files for your device.
If you still need help please contact us directly.