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:
Create a Free Lightbox Gallery App
Start for free nowEdit Appearance
In your Tumblr dashboard, open your Account Settings. Select Edit Appearance and click Edit Theme.Edit HTML
Go to Edit HTML.Paste the Script
Paste this script into the Tumblr HTML file. It's always best to paste it between the Head tags. Then click Update, and save.New Text Post
Go back to the Tumblr dashboard and add a new Text post.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.Begin to alter 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.
All you need to know about our Lightbox Gallery app is just a click away.
See the detailsRemove the Guesswork of Building Your Brand
Begin Building Brand Identity From 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.


Make Your Website 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 foreign companies that claim to offer Lightbox Gallery apps for a bargain.
Save Time With POWR
Plus, updating and customizing a Lightbox Gallery app can be difficult, 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!


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.

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: Rbia Shades is winning with POWR apps
After much success locally, Rbia needed a way to collect emails effectively on their brand-new website.
Their website provider did not have what they were looking for, so the search was on. After doing their research, they believed POWR was what they needed.
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.

All POWR apps are built for peak-performance.
See apps in action
Trusted by the best in the biz!
POWR has helped over a half million businesses on every continent
(besides Antarctica, because of course not)
Frequently Asked Questions
Learn more about how to add POWR apps to your website.
Yes, any POWR app will work perfectly on any website. What’s better, is the patented POWR Live Editor is the same regardless of the app.
- Easily add more than one (for free)
- Edit to your needs directly from your live site
- Changes are made instantly
Absolutely! The POWR Lightbox Gallery widget is optimized for mobile, ensuring that it looks great and functions smoothly across all devices, including phones and tablets.
This optimization enhances user experience, contributing to higher engagement rates on your Tumblr site.
POWR Lightbox Gallery allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Lightbox Gallery perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Lightbox Gallery to your Tumblr site is fully outlined above and straightforward with no coding required.
Simply follow POWR's setup guide, which is as easy as copy/pasting the provided code snippet into your site's HTML.
This ease of installation makes it convenient for Tumblr site owners to implement Lightbox Gallery and gather feedback from their audience.
Using POWR Lightbox Gallery on your Tumblr site offers numerous benefits, including enhanced customization options and easy installation without coding.
These features help improve your site's user engagement by allowing visitors to provide valuable feedback, leading to better online growth.


