by Chris Wahlfeldt on WordPress.org
Import posts and custom post types from JSON and CSV files with intelligent field mapping for WordPress fields, ACF, and custom meta.

Upload interface - Select your JSON/CSV file and target post type
Import large amounts of content into WordPress from JSON or CSV files. Perfect for migrating from other platforms, importing API data, or bulk-creating content with a user-friendly mapping interface.
JSON Format: Array of objects
[
{
“title”: “Post Title”,
“content”: “Post content”,
“custom_field”: “value”
}
]
CSV Format: Headers in first row, data in subsequent rows
title,content,custom_field
“Post Title”,”Post content”,”value”
“Another Post”,”More content”,”another value”
This plugin processes files locally on your server. No data is transmitted externally. Uploaded files are processed and removed from temporary storage.