Install A Before And After Slider App on Tumblr

Learn the steps to add Before and after slider to your Tumblr website in minutes with no coding or a developer.

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Steps to Add a Before and after slider App on a Tumblr Site

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

How To Add a Before and after slider App on Tumblr:

  1. Create a Free Before and after 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

    Go to Edit HTML.
  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

    Return to your Tumblr Admin page, and create a new Text post.
  6. Paste the Shortcode

    Paste the POWR shortcode into the text post, then save If you expand the post, you will see your new POWR Before and after slider.Click the POWR Settings Icon to open the POWR Editor.
  7. Edit your Before and after slider on Tumblr:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Before and after slider plugin.

Need to know more about features and integrations of our Before and after slider app?

See the details

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?

Before and after slider to Tumblr
Add Before and after slider to Tumblr

Now You Have To Make Your Elements Unique

Some small business owners try to build a Before and after slider app solo or get an expensive web designer that promises they can build one.


Others try to enlist web design companies overseas that appear to offer Before and after slider apps for reduced prices or attempt to use open source code.

POWR Saves You Valuable Time

And it takes lots of time to customize and update a Before and after 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 Before and after 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
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 nonstop to keep POWR apps like your Tumblr Before and after slider functioning for you.

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.

In just a few short months of installing a POWR Popup app, Rbia earned over 600 new contacts – a 250% growth.


Next, they used a Social Feed app and quickly noticed a leap in new followers on Instagram and 200% more engagement on their site.


Last came the Media Slider. A beautiful way to show off their products and accessories to every site visitor the moment they land on their site.

Add Before and after slider to Tumblr
Before and after slider to Tumblr
Grow contacts by 250%
Before and after slider to Tumblr
2x your engagement
Before and after slider to Tumblr
2x more time on site

Yes, POWR has an app for that.

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)

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Frequently Asked Questions

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