How MailerLite and WordPress work together
MailerLite builds the official MailerLite signup forms plugin, which places MailerLite signup forms on a WordPress site. Pop-ups and promotion pop-ups you switch on in MailerLite appear on the site automatically through the plugin's script, while embedded forms go into a page or post through the MailerLite toolbar icon, or into a sidebar as a widget.
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Start a 14-day MailerLite trial →What you need first
You need a MailerLite account, an API token generated on its Integrations page, and admin access to the WordPress dashboard. On WordPress.com, its own guide says a free site must upgrade before it can install plugins.
Set up the connection
- In MailerLite, open Integrations, choose MailerLite API and generate a new token.
- In WordPress, add the Official MailerLite signup forms plugin from Plugins and activate it.
- Open MailerLite, then Settings, in the WordPress sidebar and paste the token.
- Under Signup forms, add a form made in MailerLite, or a custom form and the group its signups join.
- Place the form with the MailerLite icon in a page or post, or drag the widget into a sidebar.
Test the form
Sign up with an address you control and check that it lands in the right group with the right status. With double opt-in on, the subscriber stays Unconfirmed until they click the confirmation email, and automations do not start for Unconfirmed subscribers.
For custom forms made in WordPress, double opt-in is switched on for all of them at once in the plugin's settings; forms made in MailerLite use their own setting.
When pop-ups do not appear
MailerLite's help says other WordPress plugins can block the pop-up script; then pop-ups will not appear on their own and the script has to be added by hand. A form must also be switched on with its Status toggle in MailerLite before it shows.
Plans and limits
MailerLite's own limits apply to the forms you place: 3 active forms on Free, 10 on Comfort and unlimited on Power, and pop-ups are on every plan. If the site runs a store, MailerLite's separate plugin is covered in the WooCommerce guide.
The WordPress plugin can be connected to a new MailerLite account during its 14-day premium trial.
Sources used for this page
These records support the facts and comparisons above. Merchant-controlled records are labeled so you can separate product claims from independent evidence.
- MailerLite product overview — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- MailerLite current plans and pricing — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- MailerLite automation help library — Merchant documentation · mailerlite.com · Merchant-controlled · read August 23, 2026
- MailerLite integration directory — Merchant documentation · mailerlite.com · Merchant-controlled · read August 23, 2026
- MailerLite groups and segments — Platform documentation · mailerlite.com · Merchant-controlled · read August 24, 2026
- Google email sender guidelines — Platform documentation · support.google.com · Merchant-controlled · read August 23, 2026
- MailerLite help: using MailerLite with WordPress — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- MailerLite WordPress integration — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- MailerLite help: connecting WooCommerce — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- MailerLite signup form features — Merchant documentation · mailerlite.com · Merchant-controlled · read October 6, 2026
- Install a plugin (WordPress.com support) — Independent · wordpress.com · read October 6, 2026