Install A Lightbox Gallery App on Tumblr

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

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

    Go to Edit HTML.
  4. Paste the Script

    Paste this exact script into your Tumblr HTML file. It's best to add it between the Head tags. Then click Update, and save.
  5. Text Post

    Back inside the Tumblr site editor, add a new Text Element.
  6. Copy and 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. To edit your Lightbox Gallery on Tumblr:

    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

Establishing Brand Identity 101 - Your Website

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


But next comes a tough question: how can you entice, captivate, turn, and support more visitors?

Lightbox Gallery to Tumblr
Add Lightbox Gallery to Tumblr

Make Your Website Elements Unique

People often ask a 'techie' friend to design a Lightbox Gallery for them or hire a 'web guy' that one of their friends referred.


Others look overseas or for low priced open source alternatives for Lightbox Gallery.

Save Time With POWR

Plus, updating and customizing a Lightbox Gallery app can be challenging, and you may think you have to hire a developer.


Additionally, as your business expands, hackers could see an unsecured Lightbox Gallery as a great opportunity to exploit your business and your customers. We consider this and built safeguards!

Add Lightbox Gallery to Tumblr
Support feature

Because POWR is built for scale, has the most advanced built-in security and high-volume capabilities of any other Lightbox Gallery app on the market, we protect you while you grow on Tumblr.

security feature
All common questions are answered by searching POWR's robust Help Center or by reaching out to our customer support team, which is available 24/7.

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: 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
Grow contacts by 250%
Lightbox Gallery to Tumblr
2x engagement improvement
Lightbox Gallery to Tumblr
2x time on site

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.