How to Add A Lightbox Gallery App to a Tumblr Website

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 underneath Custom Theme.
  4. Paste Script

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

    Return to your Tumblr Admin page, and create 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. 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

You've already invested time and resources in launching 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 turn them into customers.

Lightbox Gallery to Tumblr
Add Lightbox Gallery to Tumblr

Make Your Website Elements Unique

Some small business owners try to develop a Lightbox Gallery app solo or get an expensive web designer that promises they can build one.


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

Save Time With POWR

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


As your company continues to expand, you're likely to face security issues, as hackers may attempt to manipulate 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
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.

POWR's team of engineers are working around the clock to keep Tumblr Lightbox Gallery and all 60+ other POWR apps working perfectly.

CASE STUDY: Rbia Shades is winning with POWR apps

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

POWR apps are made to grow your online revenue.

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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.