Adding A Testmonial Slider App on a Tumblr Website

Learn the steps to add Testmonial Slider to your Tumblr website in minutes with no coding or a developer.

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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:

  1. Create a Free Testmonial Slider App

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  2. Appearance > 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 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. Create New Text Post

    Return to your Tumblr Admin page, and create 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 Testmonial Slider.Click the POWR Settings Icon to open the POWR Editor.
  7. 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.

Need to know more about features and integrations of our Testmonial Slider app?

See the details

Remove the Guesswork of Building Your Brand

Begin Building Brand Identity From Your Website

Congratulations on publicizing your business online with Tumblr!


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

Testmonial Slider to Tumblr
Add Testmonial Slider to Tumblr

Website Element Customization is Next

People often ask a 'techie' friend to design a Testmonial Slider for them or hire a 'web guy' that one of their friends referred.


Others look overseas or for low priced open source alternatives for Testmonial Slider.

POWR Saves You Valuable Time

Plus, updating and customizing a Testmonial Slider app can be difficult, and you may think you have to hire a developer.


Additionally, as your business increases, hackers could see an unsecured Testmonial Slider as a great opportunity to exploit your business and your customers. We consider this and built safeguards!

Add Testmonial 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 Testmonial Slider app on the market, we protect you while you grow on Tumblr.

security feature
Our top-notch customer support team is available to you 24/7 and a complete Help Center for answers to all common questions.

Furthermore, our team of talented engineers work at all hours to keep POWR apps like your Tumblr Testmonial Slider up and running 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.

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 Testmonial Slider to Tumblr
Testmonial Slider to Tumblr
Grow contacts by 250%
Testmonial Slider to Tumblr
2x engagement improvement
Testmonial Slider to Tumblr
Time on site up 2x

Yes, POWR has an app for that.

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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.