Download OmniPlayer: MKV Video Player Pro for macOS

You grab a 30 GB MKV of a concert, drop a subtitle file next to it, and open it in OmniPlayer Pro. The progress bar shows little preview frames as you scrub, so jumping to the right song takes a second. You bump the saturation a notch, switch to the commentary audio track, and it all just plays.

Plays hefty MKV torrents and YouTube URLs without stutter

• Playing hefty MKV and torrented video files without stutter
• Quick online streaming — paste a YouTube or Vimeo URL and it plays
• Fine-tuning subtitles: load local SRT files, tweak colour and size on the fly
• Building playlists with search, delete and repeat modes for long sessions
• Grabbing a 60-second GIF from a scene without leaving the player

Subtitles and video tweaks stay tucked away until needed

• Built for Intel Macs running macOS 11 or later
• Video adjustments (brightness, contrast, saturation) are on hand, but the interface keeps them out of the way
• Handles HTTP and HTTPS streams, plus multiple audio tracks in a single file

No more crashes on 30 GB MKV rips

Version 2.1.22 is a small point release, but one fix stands out for anyone who downloads large files. The app previously stumbled on a 30 GB MKV — think a full Blu-ray rip or a long tournament recording — and that bug is now squashed. In everyday terms, you drop in a chunky file and playback starts without the spinner hanging around.

Earlier releases tightened up the playlist engine and smoothed out subtitle searching. The online lookup now leans on both the file title and its hash, so you get better matches for obscure foreign films. Nothing flashy in the patch notes, just the kind of tweaks that stop you reaching for another player mid-session.

Auto-hide the floating control bar for a cleaner picture

The defaults are sensible, but a few switches make the player feel more yours. Open preferences and hit the General tab first.

• Auto-hide controls during playback. Turn this on immediately. The floating control bar vanishes after a moment, and you get a clean full-screen picture. Move the mouse to bring it back.
• Remember last playback position. Already enabled for auto-stop, but check the tick box. It saves your spot in every file, which matters when you chip away at a long video over several evenings.
• Screenshot format. The default is fine, but if you post frames to social channels, switch to PNG for lossless grabs or JPEG for smaller file sizes. The GIF capture length sits in the same panel — dial it to 60 seconds only when you really need a long looping clip.

Under Subtitles, set a preferred encoding if you watch content in languages like Chinese or Japanese. The real-time size and colour sliders work during playback anyway, but locking a default encoding stops garbled text on first load.

Offline collectors, streamers and subtitle tweakers thrive here

OmniPlayer Pro suits three camps of Mac users particularly well. If you see yourself in one, the tool likely earns its keep.

The offline collector with large files. You have a drive full of MKV torrents, concert rips, and archived lectures. The player opens them without transcoding, handles multiple audio tracks, and the progress-bar previews let you scrub through a two-hour file in seconds. No other lightweight player on an Intel Mac handles a 30 GB file as calmly after the latest fix.

The subtitle tweaker. You watch a lot of international content and you are fussy about readability. OmniPlayer lets you load an external SRT, pull subtitles from online databases by title, and adjust colour, size and encoding while the video runs. The real-time feedback beats opening a separate editor.

The casual caster. You want to throw a video onto the living room TV via Chromecast or DLNA without a complicated setup. Paste a URL or open a local file, click the cast icon, and it lands on the big screen. The Roku support is a bonus if that is your streaming stick of choice.

Good to know: the latest update specifically fixed a bug with loading 30 GB MKV files, so oversized rips are no longer an issue.

• Fixed a bug when loading a 30 GB MKV file
• Minor bug fixes

• macOS 11 or later
• Intel 64-bit