Steps to Add a Overlay Popup App on a Tumblr Site
Create your customized Overlay Popup app, match your website's style and colors, and add Overlay Popup to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Overlay Popup App on Tumblr:
Create a Free Overlay Popup App
Start for free nowEdit Theme
Go to your Account Settings and click Edit Appearance. Then click Edit Theme.Edit HTML
Underneath Custom Theme, click Edit HTML.Copy and Paste Script
Paste this script into the Tumblr HTML file. It's always best to paste it between the Head tags. Then click Update, and save.Create New Text Post
Return to your Tumblr Admin page, and create a new Text post.Copy and Paste Shortcode
Paste this shortcode into the post. If you expand the post, you will see your new POWR Overlay Popup.Click the POWR Settings Icon to open the POWR Editor.Begin to change the Overlay Popup plugin:
Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Overlay Popup plugin.
Not sure if our Overlay Popup app is right for you? Find out more about its features and integrations.
See the detailsRemove the Guesswork of Building Your Brand
A Solid Brand Identity Starts on Your Website
If you have your Tumblr website published, you’ve completed the biggest challenge in building an online presence. Awesome!
But next comes a tough question: how can you entice, captivate, turn, and support more visitors?


Website Element Customization is Next
Some small business owners try to design an Overlay Popup app solo or get an expensive web designer that promises they can build one.
Others try to find web design companies overseas that appear to offer Overlay Popup apps for reduced prices or attempt to use open source code.
Reduce Time Spent by Half With POWR
Plus, updating and customizing an Overlay Popup app can be difficult, and you may think you have to hire a developer.
Additionally, as your business booms, hackers could see an unsecured Overlay Popup as a great opportunity to exploit your business and your customers. We consider this and built safeguards!


POWR has the most advanced security features, is built for scale, and currently supports high-volume sites on Tumblr and other similar platforms.

POWR's team of engineers are working around the clock to keep Tumblr Overlay Popup and all 60+ other POWR apps working smoothly.
CASE STUDY: Rbia Shades wins big with POWR
A few months after Rbia Shades launched at local fairs and craft shows, they were looking for a way to sell online.
They wanted to visually appeal to site visitors and demonstrate the quality of their product and lightweight, ergonomic designs.
Their web host did not provide an adequate solution for this, and after some research, decided to give POWR a try.
Rbia started to see success with POWR Popup almost immediately, adding over 600 new contacts in the first 90 days.
They then realized that there was a full suite of other solutions they could use to improve their online experience for site visitors.
Soon, Rbia embedded an Instagram Feed app on their website and noticed site visitors who interacted with the app doubled the time spent on their page while growing their followers to over 11k on Insta at the same time.

Yes, POWR has an app for that.
See apps in action
Trusted by the best in the biz!
POWR has helped over a half million businesses on every continent
(besides Antarctica, because of course not)
Frequently Asked Questions
Learn more about how to add POWR apps to your website.
Yes, any POWR app will work perfectly on any website. What’s better, is the patented POWR Live Editor is the same regardless of the app.
- Easily add more than one (for free)
- Edit to your needs directly from your live site
- Changes are made instantly
Absolutely! The POWR Overlay Popup widget is optimized for mobile, ensuring that it looks great and functions smoothly across all devices, including phones and tablets.
This optimization enhances user experience, contributing to higher engagement rates on your Tumblr site.
POWR Overlay Popup allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Overlay Popup perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Overlay Popup to your Tumblr site is fully outlined above and straightforward with no coding required.
Simply follow POWR's setup guide, which is as easy as copy/pasting the provided code snippet into your site's HTML.
This ease of installation makes it convenient for Tumblr site owners to implement Overlay Popup and gather feedback from their audience.
Using POWR Overlay Popup on your Tumblr site offers numerous benefits, including enhanced customization options and easy installation without coding.
These features help improve your site's user engagement by allowing visitors to provide valuable feedback, leading to better online growth.


