Install A Sign Up Form App on Tumblr

The easy way to add Sign Up Form to Tumblr in minutes without coding or needing help from 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. Edit Appearance > 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.
  4. Copy and 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. Text Post

    Back inside the Tumblr dashboard, add a new Text Element.
  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 alter 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

Brand Identity Begins With a Great Website

If you have your Tumblr website working, you’ve tackled the biggest challenge in building an online presence. Awesome!


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

Sign Up Form to Tumblr
Add Sign Up Form to Tumblr

Make Your Website Elements Unique

Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can grow 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.

Reduce Time Spent by Half With POWR

Also, customizing and updating a Sign Up Form app calls for even more time, and is likely to cause new complications.


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

Add Sign Up Form to Tumblr
Support feature

POWR has the most advanced security features, is built for scale, and currently supports high-volume sites on Tumblr and other similar platforms.

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

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: POWR put Rbia Shades on the success track

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 Sign Up Form to Tumblr
Sign Up Form to Tumblr
Grow contacts by 250%
Sign Up Form to Tumblr
2x your engagement
Sign Up Form to Tumblr
Time on site up 2x

POWR apps are made to grow your online revenue.

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.