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

Learn the steps to add Sign Up Form to your Tumblr website in minutes with no coding or a developer.

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Steps to Add a Sign Up Form App on a Tumblr Site

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

How To Add a Sign Up Form App on Tumblr:

  1. Create a Free Sign Up Form 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 the POWR script into the HTML file between the Head tags. Then click Update, and save.
  5. Create New Text Post

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

    Paste the shortcode into the post. Then save. If you expand the post, you will see your new POWR Sign Up Form.Click the POWR Settings Icon to open the POWR Editor.
  7. Begin to change the Sign Up Form plugin:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Sign Up Form plugin.

Not sure if our Sign Up Form app is right for you? Find out more about its features and integrations.

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Remove the Guesswork of Building Your Brand

Establishing Brand Identity 101 - Your Website

Congratulations on making the first move to design your e-commerce site online -- by getting your Tumblr website live on the web!


But here comes the next big question: How do you get site visitors to engage and buy your product or service?

Sign Up Form to Tumblr
Add Sign Up Form to Tumblr

Website Element Customization is Next

Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can expand a Sign Up Form without a hitch.


Others look for low priced alternative Sign Up Form apps from overseas or open source Sign Up Form apps that claim to have what they're looking for.

POWR Saves You Valuable Time

Plus, updating and customizing a Sign Up Form app can be challenging, and you may think you have to hire a developer.


Additionally, as your business booms, hackers could see an unsecured Sign Up Form as a great opportunity to exploit your business and your customers. We consider this and built safeguards!

Add Sign Up Form to Tumblr
Support feature

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

security feature
All common questions are answered by searching POWR's robust Help Center or by reaching out to our customer support team, which is available 24/7.

Our Sign Up Form comes with a team of expert engineers that work constantly for you, making sure your Sign Up Form is always working perfectly.

CASE STUDY: Rbia Shades completely transformed their online experience

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.

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 complete 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 Sign Up Form to Tumblr
Sign Up Form to Tumblr
Grow contacts by 250%
Sign Up Form to Tumblr
Engagement up 2x
Sign Up Form to Tumblr
2x more time on site

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.