PotPlayer 26.8.19 / 26.9.18 Beta

PotPlayer is what happens when a media player is built for people who want to open the settings panel.

It plays MKV, MP4, AVI, HEVC, AV1 and several hundred other formats out of the box, with its own FFmpeg-based decoders and hardware acceleration already wired up.

Past that, almost every stage of playback is something you can swap out.

The heritage explains the design. PotPlayer was written by Kang Yong-Huee, the same developer who created KMPlayer years earlier, and who built this one after joining Daum, now part of Kakao.

That is the second time he has built a player around the same idea: put the decoders inside, then expose the whole pipeline to anyone who wants to tune it. It is why PotPlayer and KMPlayer still feel like cousins, and why both have settings panels that make VLC look austere.

What PotPlayer Includes Out of the Box

A clean install already covers what most people open. H.264, VP9, MP3 and AAC play on first launch with nothing added.

The internal decoders are FFmpeg-based, the same foundation under mpv and most modern players, so everyday files are reliable from the start.

HEVC is where it gets more interesting. PotPlayer decodes H.265 natively if your GPU can help, which covers 4K rips, streaming downloads and modern phone footage.

Audio is the part that trips people up. OpenCodec for PotPlayer extends the internal decoder with full AAC LATM, AC3, EAC3, TrueHD, MLP and DTS, which is usually the fix when a file plays with a picture and no sound, or with the channels in the wrong places.

It is a small, targeted add-on that leaves your system-wide codec setup alone, which is the main reason to prefer it to a full pack.

For AV1 files from YouTube, Netflix downloads or a local library, the AV1 Video Extension adds system-level decoding that PotPlayer will pick up and use.

Building the Full Playback Pipeline

The real separator is that PotPlayer does not insist on its own decoders. It can route any format through an external DirectShow filter instead, so you can pick whichever one performs best on your hardware.

LAV Filters is the standard companion: splitters and decoders covering H.264, HEVC, VP9, AV1, AC3, EAC3, DTS-HD and TrueHD, across containers from MKV to MP4 to OGG.

With it installed and hardware acceleration switched on, PotPlayer hands 4K HEVC to the GPU rather than the processor, which is what keeps playback smooth on mid-range machines. You wire it up under Preferences then Filter Control.

Two guides cover the settings rather than the theory: playing HEVC files with PotPlayer for the decoder chain, and transform your media player with LAV Filters for D3D11 and for bitstreaming audio to a receiver.

If you would rather not assemble it piece by piece, LAV Filters Megamix bundles LAV, madVR, XySubFilter, DirectVobSub and a slim PotPlayer build in one installer.

Subtitles are a genuine strength and need no help for most people - the built-in renderer handles SRT and styled ASS properly. DirectVobSub is worth adding only for VobSub IDX/SUB files, or when you want one subtitle renderer working across several players at once.

When the subtitle file itself is the problem, our Subtitle Converter moves between SRT, ASS, SSA and SBV in the browser, with nothing to install.

How PotPlayer Compares to Alternatives

VLC Media Player is still the right answer for anyone who wants to install a player and never think about it again. It sidesteps DirectShow entirely and plays HEVC, AV1 and VP9 with nothing added.

What you give up is the pipeline. VLC will not use madVR or a D3D11-native decoder chain the way PotPlayer and LAV Filters will, and its subtitle engine is weaker on heavily styled ASS.

MPC-BE is the closest thing to a direct rival. It ships with LAV Filters already inside, takes less disk space, and sits on the same DirectShow architecture, so the choice comes down to interface: MPC-BE is leaner and more predictable, PotPlayer gives you more without asking you to install it. MPC-BE users who want the best subtitle rendering usually add MPC SubtitleSource.

KMPlayer overlaps heavily, which is no accident given they share an author. The practical difference is that KMPlayer carries YouTube streaming and downloading built in, and PotPlayer does not.

mpv is the other direction entirely: no interface to speak of, very little memory, and everything driven by config files and the command line. PotPlayer is the better daily player, mpv the better one to automate.

If you would rather configure the whole stack once, the K-Lite Codec Pack installs MPC-HC, LAV Filters, DirectVobSub and optional madVR together and sorts out filter priority for you. The Full edition adds the Codec Tweak Tool and Icaros thumbnails. Neither installs PotPlayer, but PotPlayer will happily use the filters they register.

Portability and Offline Use

There is a portable build as well as the installer, offered as a 7z or zip archive. It carries both the 32-bit and 64-bit executables plus the OpenCodec library, so it runs from a USB stick and registers nothing with Windows.

That makes it the sensible option on a work machine, a shared PC, or anywhere you would rather not leave a player installed.

For playback with no install at all, our Online Web Player opens MP4, WebM, AV1, MP3, FLAC and streaming playlists in the browser.

Quick questions

Install PotPlayer, add OpenCodec, and you have a player that handles almost anything without touching the rest of your system.

Add LAV Filters only when 4K HEVC or receiver audio gives you a reason to, and reach for the Codec Troubleshooter if a file still refuses to play once everything is in place.