How to Add An Image Resizer App to a Tumblr Website

The easy way to add Image Resizer to Tumblr in minutes without coding or needing help from 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

    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 script into your Tumblr HTML file. It's best to add it between the Head tags. Then click Update, and save.
  5. Create New Text Post

    Return to your Tumblr Admin page, and create a new Text post.
  6. Copy and Paste Shortcode

    Paste the POWR shortcode into the text post, then save 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 to edit the Image Resizer plugin:

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

Undecided if our Image Resizer app will suit your needs? We have all the details you need.

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Remove the Guesswork of Building Your Brand

Brand Identity Begins With a Great Website

If you have your Tumblr website working, you’ve completed the biggest challenge in building an online presence. Way to go!


But next comes the hard part: how can you draw in, captivate, turn, and support more visitors?

Image Resizer to Tumblr
Add Image Resizer to Tumblr

Website Element Customization is Next

Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can develop an Image Resizer without a hitch.


Others look for low-cost alternative Image Resizer apps from overseas or open source Image Resizer apps that claim to have what they're looking for.

Get Back More Time With POWR

And it takes huge amount of time to customize and update an Image Resizer app, which will make more bugs.


But, if you haven't built a strong security system, your business could be prone to hacking and other security issues. We thought of that!

Add Image Resizer to Tumblr
Support feature

Because POWR is built for scale, has the most advanced built-in security and high-volume capabilities of any other Image Resizer 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 Image Resizer comes with a team of expert engineers that work constantly for you, making sure your Image Resizer is always working smoothly.

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 Image Resizer to Tumblr
Image Resizer to Tumblr
250% contacts growth
Image Resizer to Tumblr
2x engagement improvement
Image Resizer to Tumblr
2x more time on site

Yes, POWR has an app for that.

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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.