How to Add A Before And After Slider App to a Tumblr Website

Steps on adding Before and after slider to Tumblr in minutes with no coding and no 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

    Go to your Account Settings and click Edit Appearance. Then click Edit Theme.
  3. Edit HTML

    Click on the Edit HTML link underneath Custom Theme.
  4. Paste the 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. Create 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 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.

Not sure if our Before and after 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

Brand Identity Begins With a Great Website

If you have your Tumblr website published, you’ve completed the biggest challenge in building an online presence. Awesome!


But next comes the hard part: how can you entice, captivate, turn, and support more visitors?

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

Website Element Customization is Next

People often ask a 'techie' friend to build 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.

Reduce Time Spent by Half With POWR

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


But, without building a strong security system, your business could be prone to hacking and other security issues. We thought of that!

Add Before and after slider to Tumblr
Support feature

POWR has the most advanced security features, is built for scale, and currently supports high-volume sites on Tumblr and other similar platforms.

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

After Rbia launched its website, they were looking for a solution to add new contacts for outreach.


They found POWR while looking for a popup solution on their site and started to see immediate results.

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 Before and after slider to Tumblr
Before and after slider to Tumblr
250% growth in contacts
Before and after slider to Tumblr
Engagement up 2x
Before and after slider to Tumblr
2x site session time

All POWR apps are built for peak-performance.

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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.