cm4all

ImpEx is a WordPress plugin that allows you to import and export data from and to your WordPress installation.
The primary goal for ImpEx is to provide a true Open Source WordPress Plugin for importing/exporting your WordPress data (including data from third-party plugins/themes).
This plugin is in an early (but working) stage.
Impex provides :
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WordPress hooks for third-party plugins to expose their own data to ImpEx Import / Export without being dependent on Impex.
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a (semi) streaming architecture for large data exports/imports.
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Definition of configurable import/export profiles defining data providers to use and configuration of these data providers
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<li>A user interface for importing / exporting data via ImpEx WP admin screen</li>
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the ImpEx API is designed to support resumable/cancelable imports and exports.
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ImpEx provides a REST API integrated into WordPress
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ImpEx is explicitly designed for use in managed WordPress instances
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ImpEx development relies heavily on PHP unit testing its feature set to be stable and consistent.
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a <a href="https://ionos-wordpress.github.io/cm4all-wp-impex/impex-cli.html" rel="nofollow ugc">CLI</a> for importing/exporting data via ImpEx REST interface. 
The ImpEx CLI can be used as an alternative to the ImpEx WP admin screen.
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related NPM package <a href="https://www.npmjs.com/package/@cm4all-wp-impex/generator" rel="nofollow ugc">@cm4all-wp-impex/generator</a> enabling transformation of any content to Impex Export format.
Using this package you’re able to convert any content to WordPress and import it using the ImpEx plugin. See the <a href="https://ionos-wordpress.github.io/cm4all-wp-impex/cm4all-wp-impex-generator/static-website-tutorial.html" rel="nofollow ugc">Tutorial</a> 
or <a href="https://www.youtube.com/watch?v=pjG69RmULYo" rel="nofollow ugc">watch the walk-trough at YouTube</a>.
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Your help is welcome !!

cm4all-wp-impex

ImpEx contributes extendable Import / Export functionality to WordPress

BaiatuLuTata

Do you need to back up your post tags, migrate them to another site, or perform a bulk update in a spreadsheet? Post Tags Export/Import is the perfect tool for the job.
This plugin provides a simple interface under “Tools” in your WordPress admin area to handle two key tasks:
<ol>
<li>Export Posts to JSON: With a single click, you can download a clean JSON file containing the <code>title</code>, <code>slug</code>, and an array of <code>tags</code> for every post on your site.</li>
<li>Import Tags from JSON: Upload a JSON file (in the same format as the one you exported) to bulk update tags. The plugin uses the post <code>slug</code> to identify which post to update and replaces its existing tags with the ones from the file.</li>
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This is incredibly useful for: 
* Backing up and restoring tag structures. 
* Editing tags offline in bulk using a text editor or script. 
* Migrating tag information between staging and production environments. 
* Quickly applying a new set of tags to hundreds of posts.
The plugin is designed to be lightweight, secure, and easy to use.

Post Tags Export/Import

A simple and lightweight plugin to export all posts to a JSON file and import tags from a JSON file to update posts, matching them by slug.

cm4all-wp-impex vs Post Tags Export/Import