Windows 10 and 11
- Cost
- Free to $0.99
- Time
- 2 minutes
"A codec is required to play this file": the most searched HEVC error. Pick your system and you will have it sorted in five minutes.
On phones and TVs the codec is built in and cannot be installed separately: if the device lacks a hardware decoder, your only options are an app with a software decoder (VLC for Android or iOS) or converting the video to H.264. See the list of compatible devices.
Before installing: does your hardware decode HEVC?
| Message or symptom | Cause | Fix |
|---|---|---|
| "You need a new codec to play this item" | Windows without the HEVC extension | Install the extension or use VLC |
| Audio plays but the picture is black | Video decoder missing | Same as above |
| Video stutters or CPU at 100 % | Software decoding (GPU without HEVC or acceleration off) | Enable acceleration in the player, update drivers or convert to H.264 |
| Green, pink or blocky picture | Driver bug, or 10-bit file on an 8-bit-only GPU | Update drivers; turn off hardware acceleration |
| HEIC photos won't open | HEIF and HEVC extensions missing | See the Windows guide |
| QuickTime won't open an .mkv | QuickTime doesn't support MKV | IINA or VLC, or remux to MP4 |
VLC, mpv, Kodi and PotPlayer include FFmpeg's HEVC decoder and work even with nothing installed on the system. Find them all in downloads.
It depends on the system. On Mac, iPhone, Android and Linux you pay nothing. On Windows, Microsoft's extension costs $0.99 / €0.99 unless the PC maker preinstalled it; the free alternative is VLC or mpv, which bring their own decoder.
Only from the official site. Avoid websites offering "free HEVC codec" with their own installers: they are a common adware route. We always link to the original download.