Install A Lightbox Gallery App on Tumblr

Steps on adding Lightbox Gallery to Tumblr in minutes with no coding and no 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. Appearance > 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. Copy and Paste Script

    Paste the POWR script into the HTML file between the Head tags. Then click Update, and save.
  5. Create Text Post

    Create a new Text post in the Tumblr dashboard.
  6. 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. 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

Begin Building Brand Identity From Your Website

You've already invested time and resources in creating your business online just by having a Tumblr website.


Your work isn't done yet, though! Now it's time to attract and engage visitors, then make them into customers.

Lightbox Gallery to Tumblr
Add Lightbox Gallery to Tumblr

Make Your Website 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 priced 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

Also, customizing and updating a Lightbox Gallery app calls for even more time, and is likely to cause new bugs.


As your company continues to expand, you're likely to encounter security issues, as hackers may attempt to take advantage of vulnerabilities in the Lightbox Gallery app. POWR has you covered!

Add Lightbox Gallery to Tumblr
Support feature

All POWR apps are built to scale with your business on Tumblr, so we offer the most advanced security features and high-volume capabilities on the market to keep your customers (and you) safe.

security feature
Our top-notch customer support team is available to you 24/7 and a complete Help Center for answers to all common 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: Rbia Shades wins big with POWR

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% growth in contacts
Lightbox Gallery to Tumblr
Up 2x in engagement
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.