How to Integrate with MailerLite

May 31, 2026

Jotform makes it easy to connect your forms with MailerLite so you can automatically send new submissions to your mailing lists and groups. This helps you keep your subscribers organized and updated without needing to add contacts manually.

Once your MailerLite account is connected, you can match your form fields, select which group to add subscribers to, and manage how contacts are updated. You can also manage your integration actions later by editing, disabling, renaming, or deleting them whenever needed.

Setting Up the Mailerlite Integration

You can connect your MailerLite account and configure the integration in just a few steps. Here’s how to set it up:

  1. In Form Builder, in the orange navigation bar at the top of the page, click on Settings.
  2. Then, in the menu on the left, click on Integrations.
  3. Now, search for MailerLite and then click on it.
Form Builder Integrations page showing MailerLite search and selection in Jotform
  1. Now, paste your Mailerlite Account API key into the Enter Your API Key Input box.
  2. Then, click on Authenticate and then log in to your Mailerlite Account.
MailerLite integration page showing API Key input field and Authenticate button in Jotform
  1. If you’ve logged in before through one of your other forms, select that Mailerlite account from the Dropdown menu and then click on Authenticate
  2. Or, to use a different one, click on Use Another Account.
MailerLite integration showing account dropdown and Use Another Account option in Jotform
  1. Once connected, configure these things:
    • Match Your Fields — Match your MailerLite subscriber fields with your Jotform form fields.
    • Select a Group — Choose which MailerLite group new subscribers will be added to.
    • Update Existing Contact — Tick this option if you want existing MailerLite contacts to be updated when they submit the form again.
  2. Finally, click on Save, and you’re all set.
MailerLite integration settings showing field mapping group selection update contact option and Save button in Jotform

Managing Your Mailerlite Integration Actions

After saving the integration, you’ll see the action you’ve set up on the page. Hover your mouse over it and click on the Pencil icon to edit it or the Three Dots icon to access more options:

  • See Action Logs — View successful and failed runs. It’s helpful for troubleshooting.
  • Rename Action — Change the action’s title.
  • Disable Action — Temporarily stop the integration from sending data.
  • Delete Action — Remove the action from your Sign Document.
Integration actions page showing Pencil icon Three Dots menu and action management options in Jotform

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