by
fatcatapps
4.4 (77 reviews)
Forms for Mailchimp by Optin Cat
Forms for Mailchimp by Optin Cat helps you grow your MailChimp list. Create popups, inline forms, sidebar widgets & more.
Forms for Mailchimp by Optin Cat ranks #4,703 among WordPress.org plugins with 2,000+ active installations, is #229 of 3,118 in the Communication category, a 4.4/5 rating from 77 reviews, and was last updated Apr 11, 2026. Data from WordPress.org, refreshed twice daily — see methodology.
Compatible with WP 7
vtrunk
Current Version vtrunk
Updated 3 months ago
Last Update on 11 Apr, 2026
Refreshed 9 hours ago
Last Refreshed on
#229 of 3,118 in Communication
Top 10% by installs
Downloads -12.9% this week
Rank
#4,703
-3 this week
Active Installs
2K+
—
No change
KW Avg Position
11.4
0.2 better
Downloads
276K
+18 today
Support Resolved
0%
—
No change
Rating
88%
Review 4.4 out of 5
4.4
(77 reviews)
Next Milestone 3K
2K+
3K+
432
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
Pro
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Rank Changes
Current
#4,703
Change
Best
#
Downloads Growth
Downloads
Growth
Peak
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4.4
77 reviews
Overall
88%
5
62
(81%)
4
1
(1%)
3
4
(5%)
2
2
(3%)
1
8
(10%)
Tracked Keywords
Showing 5 of 5| Keyword | Position | Change | Type | Updated |
|---|---|---|---|---|
| mailchimp widget | 5 | — | Tag | 1 day ago |
| mailchimp block | 7 | — | Tag | 1 day ago |
| mailchimp wordpress | 10 | — | Tag | 1 day ago |
| mailchimp | 17 | — | Tag | 1 day ago |
| MailChimp form | 18 | — | Tag | 1 day ago |
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- Version
- trunk
- Last Updated
- Apr 11, 2026
- Requires WP
- 3.9.1+
- Tested Up To
- 7
- PHP Version
- N/A
- Author
- fatcatapps
Support & Rating
- Rating
- ★ ★ ★ ★ ☆ 4.4
- Reviews
- 77
- Support Threads
- 0
- Resolved
- 0%
Keywords
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Frequently Asked Questions
Common questions about Forms for Mailchimp by Optin Cat - Grow Your MailChimp List
Yes, you need a MailChimp account. You can sign up for a free MailChimp account here.
Yes, you'll need to set up at least one MailChimp list.
Go to your Dashboard -> Optin Cat -> Add New or Select your previously created form. To integrate your MailChimp form with your MailChimp account please follow the steps below. Go to your Dashboard -> Optin Cat -> Add New or select a previously created MailChimp form. Go to Email Marketing Provider section -> enter your MailChimp API key. Enter your MailChimp API key in to the field. If you entered the correct MailChimp API key, a green checkmark will appear. Otherwise, a red error sign will appear. If this is the case, please double check your MailChimp API key. A dropdown will now appear. Select your MailChimp List that you would want your MailChimp form to populate.
You can find your MailChimp API key here.
After entering the correct MailChimp API key a dropdown containing all of your MailChimp lists will appear. Select the MailChimp list of your choice there.
This feature is only part of the premium version of this plugin. For more information, click here.
Keep in mind that MailChimp will send a confirmation email before adding subscribers to your MailChimp list. This email could be delayed by a couple of minutes or end up in your spam folder. If you're sure that subscribers aren't added to MailChimp, please check with your host if they have PHP CURL installed and if they allow requests to https://api.mailchimp.com/.
Not at this time. We might add support for MailChimp groups in the future if there's popuplar demand for it. If you'd like to see this feature, please leave a comment in the suppport forum.
You can add MailChimp optin forms to your site by going to Optin Cat -> Add New. First you'll have to choose a MailChimp form type - sidebar widget, post box (goes inside of a WordPress post or page), or lightbox popup. Then choose a layout and modify the text, colors and design using the point & click editor. Afterwards, connect the from to the MailChimp API and select a Thank You page. Finally, publish your MailChimp form. This varies based on the MailChimp form type - instructions can be found in the user interface.
If your blog has a sidebar (like most blogs), you should definitely set up a MailChimp form and place it at the top of your sidebar. This is a quick & easy win. Adding a MailChimp post box to the bottom of your blog posts is highly recommended. Readers are highly engaged after reading a post and will be more likely to opt in. For extra effectiveness, you could set up individual MailChimp forms with unique call to actions & text for each category. This will result in even more MailChimp subscribers. The most effective way to grow your list is our MailChimp popup. This MailChimp form is a lot more agressive than sidebar widgets & post boxes so it should be used with care. The premium version of this plugin comes with some advanced settings that let you fine-tune the popup further so you can maximize conversions while not annoying your users. To recap, the most effective & aggressive MailChimp form is the popup. The MailChimp post box will get you less conversions, but it's a lot more subtle. Finally, the MailChimp sidebar widget will most likely get you the least conversions. Nonetheless, it's worth setting up since it's a quick and easy win.
