Embed A Testimonial Slider App to a Tumblr Website

Don't know how to code? No problem with these easy steps to add Testimonial Slider to Tumblr in minutes.

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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

    Start for free now
  2. Edit Theme

    Go to Account Settings > Edit Appearance > Edit Theme.
  3. Edit HTML

    Click on the Edit HTML link underneath Custom Theme.
  4. Copy and 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.
  5. Text Post

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

    Paste the POWR shortcode into the text 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. 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.

Not sure if our Testimonial Slider app is right for you? Find out more about its features and integrations.

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Remove the Guesswork of Building Your Brand

Establishing Brand Identity 101 - Your Website

Congratulations on publicizing 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

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


Others look overseas or for low-cost open source alternatives for Testimonial Slider.

Reduce Time Spent by Half With POWR

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


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

Add Testimonial Slider to Tumblr
Support feature

All POWR apps are built to scale with your business on Tumblr, so we offer the most advanced security features and high-volume capabilities on the market to keep your customers (and you) safe.

security feature
POWR provides 24/7 customer support and a dedicated Help Center, so someone is always there to answer all your questions!

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

CASE STUDY: Rbia Shades is winning with POWR apps

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 complete 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.

Add Testimonial Slider to Tumblr
Testimonial Slider to Tumblr
250% contacts growth
Testimonial Slider to Tumblr
Up 2x in engagement
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.