How to Add A Lightbox Gallery App to a Tumblr Website

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

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

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

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

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Remove the Guesswork of Building Your Brand

A Solid Brand Identity Starts on 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 engage, captivate, make, and support more visitors?

Lightbox Gallery to Tumblr
Add Lightbox Gallery to Tumblr

Now You Have To Make Your Elements Unique

Some may first try to DIY a Lightbox Gallery app or 'knows a guy' that can build one in 'no time'.


Others attempt to find open source Lightbox Gallery apps, or companies abroad that allegedly offer Lightbox Gallery apps for a bargain.

Get Back More Time With POWR

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


But, without building a strong security system, your business could be prone to hacking and other security issues. We thought of that!

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
Our award-winning customer support team is available 24/7, as well as a dedicated Help Center to answer any questions.

Our team of expert engineers work 24/7 to ensure the POWR apps such as your Tumblr Lightbox Gallery working for you.

CASE STUDY: Rbia Shades completely transformed their online experience

Rbia Shades needed to expand beyond its region by bringing its products online. They needed a low-maintenance, non-techie solution.


After much research, they chose POWR as their no-code tool of choice.

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
250% growth in contacts
Lightbox Gallery to Tumblr
2x your engagement
Lightbox Gallery to Tumblr
2x site session time

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.