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What are supported browsers?

We at Hyvä strive to support as many browsers versions as we can, but our supported versions depend on the tools we use to build Hyvä: TailwindCSS and AlpineJS.

For native TailwindCSS, supported browsers are relatively new, with the introduction of CSS Properties such as inset. To be able to support older browsers we added browserlist and postcss-preset-env to keep supporting older browsers.

As for AlpineJS, the oldest browsers we support are based on the Javascript features used in AlpineJS.

Supported Browsers

At the time of writing, Hyvä supports the following browsers.

Browser Desktop Android iOS 1
Chrome 103 103
Edge 103 103
Safari 14.1 14.5
Firefox 102 102
Opera 103 103
Android Browser/WebView 103
Samsung Internet 17 (Chromium 96)
How are supported browsers determined?

The versions in the table reflect the browsers released in June 2022, except for Safari, which is based on the combination of Javascript and CSS features used in Hyvä.

Older version can be used as long queueMicrotask is supported. You can extend this by following the docs in the section Extending Browser Support.

We do not recommend doing so, since older browsers are insecure and are updated for a reason.

Unsupported Browsers

Extending Browser Support

We have a dedicated page on supporting older iOS Safari versions, which is also useful for extending the support for older versions of other browsers.

With Hyvä 1.3.6 we have added postcss-preset-env, you can use this postcss plugin to keep using modern CSS and convert this to older CSS, to configure the supported browsers see the docs on browserlist.

But do note things like flex gap need manual adjustment as explained in the supporting older iOS Safari versions


  1. Chrome, Firefox, and more are available on iOS but use the same rendering engine as Safari, this can change with iOS 17.4