Ninja Forms.
No address field in Ninja Forms, so you tag yours. Two minutes, once per form.
Ninja Forms has no address field type, so there is nothing to detect automatically. You add a CSS class to each of your text fields and the plugin takes it from there.
Three steps.
Install the Postio plugin, activate it, and save your API key under Settings → Postio.
Add plain Single Line Text fields to your form for line 1, line 2, town and postcode.
Open each field, go to Display → Element Class, and enter the matching class from the table below.
What to tag.
Only postio-line-1is required. Everything else is optional — tag the fields you have and leave out the ones you don't.
| CLASS | FIELD | NOTES |
|---|---|---|
| postio-line-1 | Address line 1 | Required. Doubles as the search box unless you add postio-search. |
| postio-line-2 | Address line 2 | Optional. |
| postio-town | Town or city | Optional. |
| postio-postcode | Postcode | Optional. |
| postio-search | Separate lookup box | Optional. Add this if you want a dedicated "start typing" field above the address. |
Details.
The class goes in Display → Element Class, not the field label or key.
Using something else?
UK address lookup on the block and classic checkout, plus My Account addresses. No configuration.
Every Address field on every form, wired automatically.
Automatic on WPForms Pro. On WPForms Lite, two minutes with CSS classes.
Native Address field, free core, wired automatically.
Native Address field with sub-inputs, free, wired automatically.
CF7 has no address field, so you tag yours. Two minutes, once per form.
Elementor Pro only. Tag your fields with CSS classes and you are done.
Ready in under a minute.
Sign up, grab a key, paste it in. Your first hundred lookups are on us.