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Kokoa YouTube Embed Fixer

The YouTube videos you pasted in by hand years ago, turned into blocks that fit any screen.

What it does

Adds a panel with a button to the block editor's sidebar. When you press it, it checks the saved content of the post and replaces every old-style YouTube embed with a native YouTube video block, responsive and in 16:9.

It recognises five kinds of embed: iframes inside a paragraph, inside an HTML block, in classic HTML without blocks or on their own, and old Flash objects. It accepts youtube.com, youtube-nocookie.com and youtu.be links. The change is saved to the database straight away and the editor refreshes itself; if there is nothing to convert, it tells you and leaves the post alone.

Why it is worth it

An iframe pasted in by hand usually has a fixed width and height: on mobile it overflows the screen or looks distorted, and in the editor it shows up as a chunk of HTML rather than a video. The WordPress video block adapts to the available width and keeps its proportions, without touching the theme.

YouTube Embed Fixer panel in the WordPress editor sidebar next to an old-style embedded video
Image pending · Block editor with a post containing an old YouTube iframe (HTML block or paragraph) and the YouTube Embed Fixer panel open in the sidebar. File name: kokoa-youtube-embed-fixer-1.png
YouTube video converted into a responsive block, with the success notice in the editor
Image pending · The same post after pressing the button: the video now a YouTube block and the green success message in the panel. File name: kokoa-youtube-embed-fixer-2.png

How it works

  1. Open the post in the block editor and find the YouTube Embed Fixer panel in the settings sidebar.
  2. Save the post and press Fix YouTube Embeds.
  3. The plugin saves the converted post and reloads the blocks in the editor. A notice confirms the conversion or tells you there were no videos to convert.

Requirements

  • The WordPress block editor.
  • Licensed under GPL v2 or later.

Got old videos on your blog?

We install it and adapt it to your site: the embed formats you used and your theme's design.

Let's talk