Adding A Lightbox Gallery App on a Tumblr Website

The easy way to add Lightbox Gallery to Tumblr in minutes without coding or needing help from a developer.

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Steps to Add a Lightbox Gallery App on a Tumblr Site

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

How To Add a Lightbox Gallery App on Tumblr:

  1. Create a Free Lightbox Gallery App

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  2. Edit Appearance > Edit Theme

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

    Click on the Edit HTML link underneath Custom Theme.
  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

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

    Paste this shortcode into the post and save. If you expand the post, you will see your new POWR Lightbox Gallery.Click the POWR Settings Icon to open the POWR Editor.
  7. Begin editing the following Lightbox Gallery plugin directly inside of the Tumblr website:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Lightbox Gallery plugin.

Undecided if our Lightbox Gallery app will suit your needs? We have all the details you need.

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Remove the Guesswork of Building Your Brand

A Solid Brand Identity Starts on Your Website

Congratulations on getting your business online with Tumblr!


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

Lightbox Gallery to Tumblr
Add Lightbox Gallery to Tumblr

Now You Have To Make Your Elements Unique

Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can develop a Lightbox Gallery without a hitch.


Others look for low-cost alternative Lightbox Gallery apps from overseas or open source Lightbox Gallery apps that claim to have what they're looking for.

Save Time With POWR

And it takes huge amount of time to customize and update a Lightbox Gallery app, which will create more complications.


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

Add Lightbox Gallery to Tumblr
Support feature

POWR supports high-volume sites on Tumblr and prioritizes the security of our Lightbox Gallery app, as well as all 60+ apps, to keep any bad actors at bay.

security feature
Our award-winning customer support team is available 24/7, as well as a dedicated Help Center to answer any questions.

Furthermore, our team of incredible engineers work at all hours to keep POWR apps like your Tumblr Lightbox Gallery up and running for you.

CASE STUDY: POWR put Rbia Shades on the success track

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 Lightbox Gallery to Tumblr
Lightbox Gallery to Tumblr
250% contacts growth
Lightbox Gallery to Tumblr
2x engagement improvement
Lightbox Gallery to Tumblr
2x site session time

Every POWR app works on any platform.

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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.