How to Add A Testimonial Slider App to a Tumblr Website

The easy way to add Testimonial Slider to Tumblr in minutes without coding or needing help from a developer.

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Steps to Add a Testimonial Slider App on a Tumblr Site

Create your customized Testimonial Slider app, match your website's style and colors, and add Testimonial Slider to your Tumblr page, post, sidebar, footer, or wherever you like on your site.

How To Add a Testimonial Slider App on Tumblr:

  1. Create a Free Testimonial Slider App

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  2. Edit Theme

    Go to your Account Settings and click Edit Appearance. Then click Edit Theme.
  3. Edit HTML

    Click on the Edit HTML link.
  4. Paste the 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.
  5. Create Text Post

    Go back to the Tumblr dashboard and add a new Text post.
  6. Paste Shortcode

    Paste the shortcode into the post. Then save. If you expand the post, you will see your new POWR Testimonial Slider.Click the POWR Settings Icon to open the POWR Editor.
  7. To edit your Testimonial Slider on Tumblr:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Testimonial Slider plugin.

All you need to know about our Testimonial Slider app is just a click away.

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Remove the Guesswork of Building Your Brand

Brand Identity Begins With a Great Website

Congratulations on getting your business online with Tumblr!


The next step is often gaining website visitors and making sales, but how?

Testimonial Slider to Tumblr
Add Testimonial Slider to Tumblr

Make Your Website Elements Unique

Some may first take a stab at to DIY a Testimonial Slider app or 'knows a guy' that can build one in 'no time'.


Others attempt to find open source Testimonial Slider apps, or companies abroad that claim to offer Testimonial Slider apps for a bargain.

Save Time With POWR

And it takes huge amount of time to customize and update a Testimonial 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!

Add Testimonial Slider to Tumblr
Support feature

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

security feature
All common questions are answered by searching POWR's robust Help Center or by reaching out to our customer support team, which is available 24/7.

Our team of expert engineers work 24/7 to ensure the POWR apps such as your Tumblr Testimonial Slider running smoothly for you.

CASE STUDY: POWR put Rbia Shades on the success track

After Rbia launched its website, they were looking for a solution to add new contacts for outreach.


They found POWR while looking for a popup solution on their site and started to see immediate results.

Shortly after signing on with POWR, Rbia’s first step was to install a popup. They increased their contacts by over 250% (over 600 real contacts).


Soon after, they added our Social Feed app and grew their social media following to over 6000.


Next, they added a Media Slider as a visual way to quickly show their products to new site visitors as they entered their homepage to show how the accessories looked in real life. It showcases their products well and gave customers a great on-site experience.


In fact, they quickly found that visitors who interacted with POWR apps on their site stayed engaged 2.5 times longer than ever before.

Add Testimonial Slider to Tumblr
Testimonial Slider to Tumblr
Grow contacts by 250%
Testimonial Slider to Tumblr
2x engagement improvement
Testimonial Slider to Tumblr
2x site session time

Every POWR app works on any platform.

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Trusted by the best in the biz!

POWR has helped over a half million businesses on every continent
(besides Antarctica, because of course not)

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Frequently Asked Questions

Learn more about how to add POWR apps to your website.