Install A Lightbox Gallery App on Tumblr

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

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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 Theme

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

    Underneath Custom Theme, click Edit HTML.
  4. Paste the Script

    Paste this exact POWR script into the HTML file, in 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. Copy and Paste Shortcode

    Paste this shortcode into the post. 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 to edit the Lightbox Gallery plugin:

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

Need to know more about features and integrations of our Lightbox Gallery app?

See the details

Remove the Guesswork of Building Your Brand

A Solid Brand Identity Starts on Your Website

Congratulations on publicizing 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 small business owners try to design a Lightbox Gallery app by themselves or get an expensive web designer that promises they can build one.


Others try to enlist web design companies overseas that claim to offer Lightbox Gallery apps for low prices or attempt to use open source code.

Save Time With POWR

And it takes tons of time to customize and update a Lightbox Gallery app, which will make 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 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.

Our Lightbox Gallery comes with a team of expert engineers that work constantly for you, making sure your Lightbox Gallery is always working perfectly.

CASE STUDY: Rbia Shades is winning with POWR apps

A few months after Rbia Shades launched at local fairs and craft shows, they were looking for a way to sell online.


They wanted to visually appeal to site visitors and demonstrate the quality of their product and lightweight, ergonomic designs.


Their web host did not provide an adequate solution for this, and after some research, decided to give POWR a try.

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
Grow contacts by 250%
Lightbox Gallery to Tumblr
2x your engagement
Lightbox Gallery 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.