The Code Completion will now also have the context of all panels before suggesting code to you - so if for example you have some CSS or JS, the HTML panel will suggest code based on the other two panels.

Introducing some AI sprinkle in the editor - Code Completion based on the Codestral model (by Mistral).

For now it's a BYOK implmentation which means you need to provide your own API Key − you can get it for free.

After much deliberation I've decided to make the switch from CodeMirror to Monaco.

There's a few reasons for this. CodeMirror 5 is no longer being developed, and the switch to 6 would be a huge rewrite since there's not much compatibility between the two versions.

Monaco itself has lots of features already built-in, things that took quite a few external plugins to get into the CodeMirror implementation.

I'm incredibly thankful to Marijn for his work on CodeMirror, it has served well for many years.

Technical debt is a drag man. Remember the time when MooTools was state-of-art JS framework? We do and so much of JSFiddle was still dependant on it till this day, but since almost all MooTools features are now available in native JS it was high-time to strip it out of the codebase.

This took around a week of work, lots of testing, but it's now done. And the final package of our JS bundle is ~30% smaller.

Add expiration date to your fiddle (time button next to Save), it can be: 1 day, 10 days, 1 month, 6 months, 1 year, and you can keep the fiddle forever. Right now the default is Keep forever but this will probably change.

We've added the ability to download a specific fiddle version from the Editor's interface. I'll be downloaded as a Zipped single HTML file.

Saving a fiddle, even when you're logged out, will put it under the Your recent fiddles modal in the sidebar. They will eventually disappear (since they're anonymous), but now you'll have time to save them under your user after logging in.

Added Tailwind CSS to the list of precompilers - even though it's really HTML, you can activate it from the dropdown in the CSS panel. Tailwind CSS would be best used with HTML Hot-reload enabled.

We've replaced the dated code linter and formatted with more modern ones: Stylelint and Prettier.

The 3.0 updates brings a lot of changes, most notably a modern UI refresh.

There was an increadible amount of under-the-hood changes for the front-end, we've mostly moved away from pre-processors. The light/dark themes are using a modern light-dark() approach. The refactoring allows for more changes to be made in a spedier manner.

Import fiddle code into other fiddles with Modules and Imports.

JS Modules: import [name] from '@jsfiddle/[username]/[fiddle].js'

CSS Import: @import url('@jsfiddle/[username]/[fiddle].css')

See how this works in this fiddle.

The fiddle listings (Public, Private, Titled, etc) will now display latest versions instead of the ones saved as Base versions - this was causing more confusion than good, so we decided to change this long-standing behavior.

Custom Console beta is getting more stable and feature-rich. Just added the ability to evaluate code in the console.