Steps to Add a Mailing List App on a Tumblr Site
Create your customized Mailing List app, match your website's style and colors, and add Mailing List to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Mailing List App on Tumblr:
Create a Free Mailing List App
Start for free nowEdit Appearance
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
Go back to the Tumblr dashboard and add a new Text post.Paste Shortcode
Paste this shortcode into the post and save. If you expand the post, you will see your new POWR Mailing List.Click the POWR Settings Icon to open the POWR Editor.Begin editing the following Mailing List 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 Mailing List plugin.
Need to know more about features and integrations of our Mailing List app?
See the detailsRemove the Guesswork of Building Your Brand
A Solid Brand Identity Starts on Your Website
Congratulations on making the first move to develop 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?


Website Element Customization is Next
Some may first take a stab at to DIY a Mailing List app or 'knows a guy' that can build one in 'no time'.
Others attempt to find open source Mailing List apps, or companies abroad that allegedly offer Mailing List apps for a bargain.
POWR Saves You Valuable Time
Plus, updating and customizing a Mailing List app can be difficult, and you may think you have to hire a developer.
Additionally, as your business booms, hackers could see an unsecured Mailing List as a great opportunity to exploit your business and your customers. We consider this and built safeguards!


All POWR apps are built to scale with your business on Tumblr, so we offer the most advanced security features and high-volume capabilities on the market to keep your customers (and you) safe.

Our team of expert engineers work 24/7 to ensure the POWR apps such as your Tumblr Mailing List working for you.
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.
In just a few short months of installing a POWR Popup app, Rbia earned over 600 new contacts – a 250% growth.
Next, they used a Social Feed app and quickly noticed a leap in new followers on Instagram and 200% more engagement on their site.
Last came the Media Slider. A beautiful way to show off their products and accessories to every site visitor the moment they land on their site.

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