IINA

IINA is a free, open-source video and audio player for macOS, built on the mpv engine and designed from the ground up to feel like a native Apple application.

What is IINA?

IINA is a modern media player for macOS that wraps the powerful mpv playback engine in a genuinely beautiful, platform-native interface. Where most cross-platform players feel like ports that tolerate macOS, IINA was conceived specifically for it — respecting system conventions like Touch Bar support, picture-in-picture, dark mode, and macOS window management from day one.

The project is maintained by an active open-source community and distributed entirely free of charge, with no ads, no upsells, and no feature gating. It handles virtually every container and codec combination I've thrown at it: MKV with embedded ASS subtitles, HEVC HDR rips, AV1 encodes, even ancient DivX relics from the early 2000s. If mpv can decode it, IINA will play it.

What does IINA do best?

IINA excels at making technically demanding playback feel effortless — no codec packs, no fiddling with third-party libraries, just drop a file and it plays.

Subtitle handling is where IINA genuinely shines above the competition. It auto-loads external subtitle files, renders ASS/SSA tracks with full styling fidelity, and connects directly to OpenSubtitles for one-click downloads without leaving the player. I've stopped hunting subtitle sites entirely.

The keyboard-shortcut system is comprehensive and customisable — scroll the volume wheel, nudge playback by a fraction of a second to sync drifted audio, or crop the video canvas to cut letterboxing on an ultrawide. The floating mini-player mode is genuinely useful for background music or podcasts while you work in another window.

• Hardware-accelerated decoding on both Intel and Apple Silicon
• Plug-in architecture for community extensions (YouTube streaming, SponsorBlock, custom hooks)
• Picture-in-picture that respects macOS system PiP, not a custom overlay
• Music mode with an album-art view and audio visualiser
• Playlist and chapter navigation with a clean sidebar panel

Is IINA free?

Yes — IINA is completely free to download and use, with no premium tier, subscription, or in-app purchase of any kind.

The project is open-source under the GPLv3 licence. Development is funded by community donations and the goodwill of contributors. There is nothing locked behind a paywall, and the feature set you get on day one is the full feature set.

Who should use IINA?

IINA is the right pick for anyone who watches video on a Mac more than occasionally — but it earns its place fastest with power users who care about playback quality and interface craft.

If you're currently using VLC because it plays everything, IINA plays everything too, but doesn't look like it was designed in 2001. If you rely on QuickTime for its lightness, IINA is barely heavier and handles the formats QuickTime refuses. The one group for whom IINA is a harder sell: Windows users who dual-boot and want identical behaviour on both platforms — IINA is macOS-only by design.

How does IINA compare to VLC and QuickTime?

Against VLC, IINA wins on design and macOS integration by a wide margin, matches it on codec coverage, and trails slightly on platform reach (VLC runs everywhere; IINA runs only on macOS). VLC's preferences UI is notoriously complex; IINA's is clean and discoverable.

Against QuickTime Player, the comparison is almost unfair — QuickTime is a lightweight previewer that exports video for Apple's ecosystem. It doesn't support MKV, external subtitles, variable playback speed beyond narrow limits, or the dozens of audio/video codecs IINA handles transparently. Keep QuickTime for screen recording; use IINA for everything else.

Infuse is worth mentioning for users in the Apple TV / streaming-library world — it adds cloud library sync and Emby/Jellyfin integration that IINA doesn't attempt. But Infuse costs money and is optimised for the TV paradigm; IINA is the better desktop player.

What are the best IINA alternatives?

The honest answer is that IINA has no direct peer on macOS right now, but these are the apps worth comparing:

• VLC — cross-platform, equally capable codec coverage, uglier on macOS, free
• QuickTime Player — built-in, instant-launch, limited format support, free
• Infuse 7 — premium streaming-library player, excellent Apple TV companion, paid subscription
• Movist Pro — polished paid alternative with similar mpv/FFmpeg underpinnings, €12 one-off