.VP3 File

The vp3 file extension is most likely best known for its use for the VP3 encoding video file format developed by On2 Technologies.

The VP3 format was included in the On2 Flix product line used as encoding and publishing solution for Adobe Flash Player and JavaFX, available as application software, plug-ins and software development kits for servers, desktops, and browsers.

On2 Flix Engine also supports H.264 formats for Flash Player as well as for iPhone and iPod compatible QuickTime video.

The On2 was acquired by Google that integrated On2's technologies to its products.

VP3 video format was replaced by Theora format.

This vp3 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Files with vp3 file extension can be found as videos in the VP3 video compression file format.

How to open:

It is likely you can playback these files using any device with Flash Player.

How to convert:

Possibly can be converted to other video formats, provided you find a converter that still supports this format.