Steps to Add a Testmonial Slider App on a Tumblr Site
Create your customized Testmonial Slider app, match your website's style and colors, and add Testmonial Slider to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Testmonial Slider App on Tumblr:
Create a Free Testmonial Slider App
Start for free nowEdit Theme
Go to your Account Settings and click Edit Appearance. Then click Edit Theme.Edit HTML
Click on the Edit HTML link underneath Custom Theme.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.New Text Post
Back inside the Tumblr dashboard, add a new Text Element.Paste the Shortcode
Paste this shortcode into the post and save. If you expand the post, you will see your new POWR Testmonial Slider.Click the POWR Settings Icon to open the POWR Editor.To edit your Testmonial Slider on Tumblr:
Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Testmonial Slider plugin.
All you need to know about our Testmonial Slider app is just a click away.
See the detailsRemove the Guesswork of Building Your Brand
A Solid Brand Identity Starts on Your Website
You've already invested time and resources in building your business online just by having a Tumblr website.
Your work isn't done yet, though! Now it's time to attract and engage visitors, then make them into customers.


Now You Have To Make Your Elements Unique
Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can develop a Testmonial Slider without a hitch.
Others look for low priced alternative Testmonial Slider apps from overseas or open source Testmonial Slider apps that claim to have what they're looking for.
Get Back More Time With POWR
And it takes huge amount of time to customize and update a Testmonial Slider app, which will make more issues.
But, without building a strong security system, your site could be prone to hacking and other security issues. We thought of that!


Because POWR is built for scale, has the most advanced built-in security and high-volume capabilities of any other Testmonial Slider app on the market, we protect you while you grow on Tumblr.

Our Testmonial Slider comes with a team of expert engineers that work constantly for you, making sure your Testmonial Slider is always working perfectly.
CASE STUDY: Rbia Shades completely transformed their online experience
After much success locally, Rbia needed a way to collect emails effectively on their brand-new website.
Their website provider did not have what they were looking for, so the search was on. After doing their research, they believed POWR was what they needed.
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.

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 Testmonial Slider 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 Testmonial Slider allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Testmonial Slider perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Testmonial Slider 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 Testmonial Slider and gather feedback from their audience.
Using POWR Testmonial Slider 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.