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 nowAppearance > Theme
In the Tumblr Editor, open your Account Settings and select Edit Appearance. On the next page, select Edit Theme.Edit HTML
Underneath Custom Theme, click Edit HTML.Paste POWR Script
Paste this exact script into your Tumblr HTML file. It's best to add it between the Head tags. Then click Update, and save.Create New Text Post
Create a new Text post in the Tumblr dashboard.Paste Shortcode
Paste the POWR shortcode into the text post, then save 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 edit 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.
All you need to know about our Overlay Popup app is just a click away.
See the detailsRemove the Guesswork of Building Your Brand
Brand Identity Begins With a Great Website
Congratulations on publicizing your business online with Tumblr!
The next step is often gaining website visitors and making sales, but how?


Make Your Website Elements Unique
Some may first take a stab at to DIY an Overlay Popup app or 'knows a guy' that can build one in 'no time'.
Others attempt to find open source Overlay Popup apps, or companies abroad that allegedly offer Overlay Popup apps for a bargain.
Get Back More Time With POWR
Also, customizing and updating an Overlay Popup app involves even more time, and is likely to cause new issues.
As your company continues to expand, you're likely to face security issues, as hackers may attempt to manipulate vulnerabilities in the Overlay Popup app. POWR has you covered!


POWR supports high-volume sites on Tumblr and prioritizes the security of our Overlay Popup app, as well as all 60+ apps, to keep any bad actors at bay.

Our team of expert engineers work 24/7 to make sure the POWR apps such as your Tumblr Overlay Popup running smoothly for you.
CASE STUDY: POWR put Rbia Shades on the success track
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.
In just a few short months of installing a POWR Popup app, Rbia earned over 600 new contacts – a 250% growth.
Next, they used a Social Feed app and quickly noticed a leap in new followers on Instagram and 200% more engagement on their site.
Last came the Media Slider. A beautiful way to show off their products and accessories to every site visitor the moment they land on their site.

Every POWR app works on any platform.
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.


