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Jonathan Harris edited this page Mar 10, 2026 · 12 revisions

QuickLook Video

Welcome

This app allows macOS Finder to display thumbnails, previews, Quick Look previews, and metadata for most types of audio and video files.

AVFoundation, Quick Look and Spotlight understand a limited number of media files - mostly only MPEG audio and video codecs within ISO file formats. This app adds support for wide range of other codecs and "non-native" media file types, including:

  • File formats: Matroska .mka, .mkv, WebM .webm, Windows Media .wma, .wmv, Ogg Video .ogm, .ogv, AVI .avi, QuickTime .mov, Flash Video .flv, .f4v, Real Media .ra, .rm, .rv, SMPTE .gxf, .mxf.
  • Audio codecs: Vorbis, Windows Media Audio, WavPak, ATRAC, etc.
  • Video codecs: VP6, VP8, VP9, AV1, HEVC/H.265, VVC/H.266, Dolby Vision, Theora, Sorenson 1 & 3, Cinepak, Flash, Real Video, DivX, Intel Indeo, QuickTime animation, etc.

How does it work?

The app provides a Spotlight extension that adds support for non-native file formats, and two Media Extensions that add support to AVFoundation for non-native file formats and video codecs.

(Long-time Mac users may remember Perian which performed a similar function with the QuickTime framework before QuickTime was replaced by AVFoundation).

Installation and Usage

See Getting Started.

Troubleshooting

See the troubleshooting guide if you have any problems.

Finder   Finder Info QuickLook preview

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