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 Appearance > Edit Theme

    In your Tumblr dashboard, open your Account Settings. Select Edit Appearance and click Edit Theme.
  3. Edit HTML

    Click on the Edit HTML link.
  4. Paste POWR 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

    Return to your Tumblr Admin page, and create 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 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

Congratulations on getting your business online with Tumblr!


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

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-cost 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 booms, 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

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 talented engineers work nonstop to keep POWR apps like your Tumblr Lightbox Gallery at peak performance for you.

CASE STUDY: Rbia Shades completely transformed their online experience

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.

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

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.