How to Add A Newsletter Sign Up App to a Tumblr Website

The easy way to add newsletter sign up to Tumblr in minutes without coding or needing help from a developer.

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Steps to Add a newsletter sign up App on a Tumblr Site

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

How To Add a newsletter sign up App on Tumblr:

  1. Create a Free newsletter sign up App

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  2. 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 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 Text Post

    Back inside the Tumblr site editor, add a new Text Element.
  6. Paste Shortcode

    Paste this shortcode into the post and save. If you expand the post, you will see your new POWR newsletter sign up.Click the POWR Settings Icon to open the POWR Editor.
  7. Begin to change the newsletter sign up plugin:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the newsletter sign up plugin.

Need to know more about features and integrations of our newsletter sign up app?

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Remove the Guesswork of Building Your Brand

Begin Building Brand Identity From Your Website

Congratulations on getting your business online with Tumblr!


The next step is often gaining website visitors and making sales, but how?

newsletter sign up to Tumblr
Add newsletter sign up to Tumblr

Website Element Customization is Next

Some small business owners try to build a newsletter sign up app by themselves or get an expensive web designer that promises they can build one.


Others try to enlist web design companies overseas that appear to offer newsletter sign up apps for low prices or attempt to use open source code.

Reduce Time Spent by Half With POWR

And it takes huge amount of time to customize and update a newsletter sign up app, which will result in more issues.


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

Add newsletter sign up to Tumblr
Support feature

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

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

Furthermore, our team of incredible engineers work nonstop to keep POWR apps like your Tumblr newsletter sign up functioning 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 started to see success with POWR Popup almost immediately, adding over 600 new contacts in the first 90 days.


They then realized that there was a full suite of other solutions they could use to improve their online experience for site visitors.


Soon, Rbia embedded an Instagram Feed app on their website and noticed site visitors who interacted with the app doubled the time spent on their page while growing their followers to over 11k on Insta at the same time.

Add newsletter sign up to Tumblr
newsletter sign up to Tumblr
250% contacts growth
newsletter sign up to Tumblr
2x engagement improvement
newsletter sign up to Tumblr
Time on site up 2x

Every POWR app works on any platform.

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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.