Moving from Code Snippets to Fluent Snippets? This plugin copies your snippets across, puts each one in the right place, and tells you which ones need a look before you switch them on.

It started as a Python script of mine. This is the same idea, inside WordPress.

How it works

Go to Tools > CS2FS Converter. You’ll see all your snippets, what each one becomes in Fluent Snippets, and any notes.
Untick the ones you don’t want and click Generate. You get a JSON file to keep as a backup.
Open Fluent Snippets and click “Import local”. Done.

Everything arrives as a draft, so nothing runs twice while Code Snippets is still active. When you’re ready, deactivate Code Snippets and publish the snippets you need.

What carries over

The code, name, description, tags and priority.
The right type and location for every kind of snippet: PHP, CSS, JavaScript, and HTML for the head, body or footer.
Which snippets were active, so you know what to publish.

What needs a look

The converter flags these, both on the list and after the import:

Snippets with a condition (Code Snippets 4). Fluent Snippets has its own conditions, so set them up again there.
Single-use snippets. Fluent Snippets has no “run once”, so a published one runs on every page load.
Content snippets. Pages using [code_snippet] need the Fluent Snippets shortcode instead.

Snippets in the trash are left out.

Once you’ve moved everything, delete this plugin. You only need it once.

Where each snippet goes

Run everywhere: PHP, everywhere
Only run in the admin: PHP, admin only
Only run on the site front-end: PHP, everywhere, with a check that stops it in the admin
Only run once: PHP, everywhere (flagged)
Content (shortcode): PHP + HTML, shortcode (flagged)
Head, body and footer content: PHP + HTML in wp_head, wp_body_open or wp_footer
Admin and site CSS: CSS in admin_head or wp_head
Head and footer JavaScript: JS in wp_head or wp_footer

You can still change the type of any snippet on the list before exporting.

CS2FS Converter