CodePen Alternatives

CodePen

Pen Embed
Debug View Embed (I am using Free Account, hence you can't view it unless I upgrade to pro)

"If you’re a free member, you can view Debug View on your own Pens while logged into your CodePen account on a supported browser. If you’re logged out, you’ll see an error screen reminding you to log in." - CodePen

How to embed codes from CodePen to Notio

Potions.dev

https://potions.potions.dev/widgets/mkBbwsubZTYm7MaQq9RBZltdxNf1/flvldicdnfqiikpcs215yzm78

Notion - The all-in-one workspace for your notes, tasks, wikis, and databases.

Highlights:

free to use
donate to keep the service free
borders are noticeable
How to embed codes from Potions.dev to Notion

JSitor

<iframe width="100%" src="<https://jsitor.com/embed/xGSiO2yF1?result&light&>" frameborder="0"></iframe>

https://jsitor.com/embed/xGSiO2yF1?result&light&

JSitor - NodeJS, JavaScript, HTML, CSS, online editor

All snippets available on this application are publicly accessible. The author of this application are not responsible or liable for loss or damage of any kind during the usage of provided code. - About JSitor

How to embed codes from JSitor to Notion

https://liveweave.com/xY2Bwa/demo