Embed A Testimonial Slider App to a Tumblr Website

Learn the steps to add Testimonial Slider to your Tumblr website in minutes with no coding or 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 Appearance > Edit Theme

    In the Tumblr Editor, open your Account Settings and select Edit Appearance. On the next page, select Edit Theme.
  3. Edit HTML

    Go to Edit HTML.
  4. 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.
  5. 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. Begin to alter the Testimonial Slider plugin:

    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

Establishing Brand Identity 101 - Your 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

Then You Must Customize Your Elements

Some small business owners try to build a Testimonial Slider app by themselves or get an expensive web designer that claims they can build one.


Others try to enlist web design companies overseas that appear to offer Testimonial Slider apps for reduced prices or attempt to use open source code.

Get Back More Time With POWR

And it takes tons of time to customize and update a Testimonial Slider app, which will make more complications.


But, if you haven't built 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

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

security feature
Our award-winning customer support team is available 24/7, as well as a dedicated Help Center to answer any questions.

Our Testimonial Slider comes with a team of expert engineers that work constantly for you, making sure your Testimonial Slider is always working perfectly.

CASE STUDY: Rbia Shades wins big with POWR

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 grew its contact list by 250% using POWR Popup to collect new email addresses from first-time site visitors.


They also added POWR Social Feed to their site and saw a 200% spike in engagement from their site visitors. They also saw a big jump in social media followers and now have over 11K followers on Instagram.

Add Testimonial Slider to Tumblr
Testimonial Slider to Tumblr
Contacts growth 250%
Testimonial Slider to Tumblr
Engagement up 2x
Testimonial Slider to Tumblr
2x time on site

POWR apps are made to grow your online revenue.

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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.