Steps to Add a Membership Form App on a Tumblr Site
Create your customized Membership Form app, match your website's style and colors, and add Membership Form to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Membership Form App on Tumblr:
Create a Free Membership Form App
Start for free nowEdit Theme
Go to Account Settings > Edit Appearance > Edit Theme.Edit HTML
Go to Edit HTML.Paste the 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.New Text Post
Create a new Text post in the Tumblr dashboard.Paste the Shortcode
Paste the shortcode into the post. Then save. If you expand the post, you will see your new POWR Membership Form.Click the POWR Settings Icon to open the POWR Editor.Begin editing the following Membership 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 Membership Form plugin.
Not sure if our Membership Form app is right for you? Find out more about its features and integrations.
See the detailsRemove the Guesswork of Building Your Brand
Brand Identity Begins With a Great Website
Congratulations on getting your business online with Tumblr!
The next step is often gaining website visitors and making sales, but how?


Make Your Website Elements Unique
Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can develop a Membership Form without a hitch.
Others look for low-cost alternative Membership Form apps from overseas or open source Membership Form apps that claim to have what they're looking for.
POWR Saves You Valuable Time
Also, customizing and updating a Membership Form app involves even more time, and is likely to cause new complications.
As your company continues to expand, you're likely to face security issues, as hackers may attempt to take advantage of vulnerabilities in the Membership Form app. POWR has you covered!


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

POWR's team of engineers are working around the clock to keep Tumblr Membership Form and all 60+ other POWR apps working perfectly.
CASE STUDY: Rbia Shades wins big with POWR
After much success locally, Rbia needed a way to collect emails effectively on their brand-new website.
Their website provider did not have what they were looking for, so the search was on. After doing their research, they believed POWR was what they needed.
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.

Yes, POWR has an app for that.
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 Membership 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 Membership Form allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Membership Form perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Membership 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 Membership Form and gather feedback from their audience.
Using POWR Membership 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.


