HEIC HEVC on web browser



Hello all,

i hope this finds you well.

i was just wondering if there will be an option for the web version to support HEIC and HEVC previews like its currently for JPG and MP4/MPEG?

Thanks in advance!!


Wouldn’t this require that this is supported by your browser? Or do you want Nextcloud to convert it to a browser-compatible format?

It looks like currently there is very little support of this format (mainly on Apples OSes) and some application start to implement solutions (Adobe and others). Patents and licensing seems to be the main obstruction at the moment.


Not sure if this would be on Nextcloud server as well as for the browser.

i logged in to my server using Safar browser on a mac and it didn’t preview the file the same way it does for JPG.


so, continuing on this thread, this is what it actually looks on the web browser while checking the uploaded HEIC photos image

While the JPG look like this image

With this being said, where is the preview being generated on the browser or on the server or both?

i can view the images on the ios app normally.

Thanks in advance for any help understanding this.


There is currently no support for this format, so no preview is available.

Please file an issue on GitHub and see what the developers says.


It would be great to have heic / heif support for nextcloud, there is also an item open on bountysource

And on github there is a feature request already.


Maybe it could be implemented into the Camera RAW previews app?


Hi, as my PRs seem to stall let me try to get some traction on them here. I’ve solved the preview generation for HEIC files in Nextcloud core: https://github.com/nextcloud/server/pull/10526

In order to get it also working for the gallery, I’ve also got a change in the pipeline. However I wonder who from the core devs would be willing to review the PR and how can we get it merged?


doing a follow up on this topic.