Install An Image Resizer App on Tumblr

Learn the steps to add Image Resizer to your Tumblr website in minutes with no coding or a developer.

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Steps to Add a Image Resizer App on a Tumblr Site

Create your customized Image Resizer app, match your website's style and colors, and add Image Resizer to your Tumblr page, post, sidebar, footer, or wherever you like on your site.

How To Add a Image Resizer App on Tumblr:

  1. Create a Free Image Resizer App

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  2. Appearance > Theme

    Go to Account Settings > Edit Appearance > Edit Theme.
  3. Edit HTML

    Underneath Custom Theme, click Edit HTML.
  4. Paste 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.
  5. New Text Post

    Go back to the Tumblr dashboard and add a new Text post.
  6. Paste Shortcode

    Paste this shortcode into the post. If you expand the post, you will see your new POWR Image Resizer.Click the POWR Settings Icon to open the POWR Editor.
  7. Begin editing the following Image Resizer plugin directly inside of the Tumblr website:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Image Resizer plugin.

Need to know more about features and integrations of our Image Resizer app?

See the details

Remove the Guesswork of Building Your Brand

Brand Identity Begins With a Great Website

You've already invested time and resources in building 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.

Image Resizer to Tumblr
Add Image Resizer to Tumblr

Make Your Website Elements Unique

Some may first take a stab at to DIY an Image Resizer app or 'knows a guy' that can build one in 'no time'.


Others attempt to find open source Image Resizer apps, or foreign companies that claim to offer Image Resizer apps for a bargain.

POWR Saves You Valuable Time

Also, customizing and updating an Image Resizer app calls for even more time, and is likely to cause new complications.


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

Add Image Resizer to Tumblr
Support feature

POWR supports high-volume sites on Tumblr and prioritizes the security of our Image Resizer app, as well as all 60+ apps, to keep any bad actors at bay.

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.

POWR's team of engineers are working around the clock to keep Tumblr Image Resizer and all 60+ other POWR apps working smoothly.

CASE STUDY: Rbia Shades wins big with POWR

A few months after Rbia Shades launched at local fairs and craft shows, they were looking for a way to sell online.


They wanted to visually appeal to site visitors and demonstrate the quality of their product and lightweight, ergonomic designs.


Their web host did not provide an adequate solution for this, and after some research, decided to give POWR a try.

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 Image Resizer to Tumblr
Image Resizer to Tumblr
250% contacts growth
Image Resizer to Tumblr
Up 2x in engagement
Image Resizer to Tumblr
2x site session time

Yes, POWR has an app for that.

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)

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Frequently Asked Questions

Learn more about how to add POWR apps to your website.