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:
Create a Free Sign Up Form App
Start for free nowEdit Theme
Go to Account Settings > Edit Appearance > Edit Theme.Edit HTML
Click on the Edit HTML link underneath Custom Theme.Paste the Script
Paste this exact POWR script into the HTML file, in between the Head tags. Then click Update, and save.Create New Text Post
Create a new Text post in the Tumblr dashboard.Copy and Paste Shortcode
Paste this shortcode into the post. If you expand the post, you will see your new POWR Sign Up Form.Click the POWR Settings Icon to open the POWR Editor.Begin editing the following Sign Up Form 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 Sign Up Form plugin.
Undecided if our Sign Up Form app will suit your needs? We have all the details you need.
See the detailsRemove the Guesswork of Building Your Brand
Brand Identity Begins With a Great Website
Congratulations on making the first move to grow your online business online -- by getting your Tumblr website live on the web!
Here comes the next big question: How do you get site visitors to engage and buy your product or service?


Now You Have To Make Your Elements Unique
Some small business owners try to design a Sign Up Form app by themselves or get an expensive web designer that promises they can build one.
Others try to find web design companies overseas that claim to offer Sign Up Form apps for low prices or attempt to use open source code.
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 increases, 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!


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

Furthermore, our team of talented engineers work at all hours to keep POWR apps like your Tumblr Sign Up Form at peak performance for you.
CASE STUDY: Rbia Shades wins big with POWR
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.
Shortly after signing on with POWR, Rbia’s first step was to install a popup. They increased their contacts by over 250% (over 600 real contacts).
Soon after, they added our Social Feed app and grew their social media following to over 6000.
Next, they added a Media Slider as a visual way to quickly show their products to new site visitors as they entered their homepage to show how the accessories looked in real life. It showcases their products well and gave customers a great on-site experience.
In fact, they quickly found that visitors who interacted with POWR apps on their site stayed engaged 2.5 times longer than ever before.

All POWR apps are built for peak-performance.
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)
Frequently Asked Questions
Learn more about how to add POWR apps to your website.
Yes, any POWR app will work perfectly on any website. What’s better, is the patented POWR Live Editor is the same regardless of the app.
- Easily add more than one (for free)
- Edit to your needs directly from your live site
- Changes are made instantly
Absolutely! The POWR Sign Up Form widget is optimized for mobile, ensuring that it looks great and functions smoothly across all devices, including phones and tablets.
This optimization enhances user experience, contributing to higher engagement rates on your Tumblr site.
POWR Sign Up Form allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Sign Up Form perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Sign Up Form to your Tumblr site is fully outlined above and straightforward with no coding required.
Simply follow POWR's setup guide, which is as easy as copy/pasting the provided code snippet into your site's HTML.
This ease of installation makes it convenient for Tumblr site owners to implement Sign Up Form and gather feedback from their audience.
Using POWR Sign Up Form on your Tumblr site offers numerous benefits, including enhanced customization options and easy installation without coding.
These features help improve your site's user engagement by allowing visitors to provide valuable feedback, leading to better online growth.


