Adding A Before And After Slider App on a Tumblr Website

The easy way to add Before and after slider to Tumblr in minutes without coding or needing help from 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. Edit Appearance

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

    Underneath Custom Theme, click Edit HTML.
  4. Paste POWR 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. New 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. Begin to alter the Before and after slider plugin:

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

Undecided if our Before and after slider app will suit your needs? We have all the details you need.

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Remove the Guesswork of Building Your Brand

Begin Building Brand Identity From Your Website

Congratulations on getting your business online with Tumblr!


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

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

Then You Must Customize Your Elements

People often ask a 'techie' friend to design a Before and after 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 Before and after slider.

POWR Saves You Valuable Time

And it takes tons of time to customize and update a Before and after slider app, which will result in more complications.


But, without building 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

Because POWR is built for scale, has the most advanced built-in security and high-volume capabilities of any other Before and after 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 Before and after slider comes with a team of expert engineers that work constantly for you, making sure your Before and after slider is always working smoothly.

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
250% growth in contacts
Before and after slider to Tumblr
2x your engagement
Before and after 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.