K-Lite Codec Pack 19.3.5 / 19.3.9 Beta

This free codec bundle installs everything your system needs to handle virtually any audio or video format - from common MP4 and MKV files to professional HEVC and AV1 content.

Not sure which codec you're missing? Use our Codec Finder to identify the exact decoder your file requires, or run the Codec Troubleshooter to diagnose playback problems before downloading.

For most users, K-Lite Codec Pack provides the simplest solution by installing all essential codecs at once.

Unlike installing random codecs that often conflict with each other, K-Lite Codec Pack provides a carefully curated collection that works seamlessly with Windows Media Player, MPC-HC, and other DirectShow-compatible players.

The installation wizard lets you choose exactly which components to install, avoiding unnecessary bloat on your system.

What's Included in K-Lite Codec Pack

The pack centers around LAV Filters, which handles decoding for all major video formats including H.264, HEVC/H.265, VP9, and AV1.

For playback, K-Lite includes the lightweight Media Player Classic Home Cinema, widely regarded as one of the best free video players available.

The MPC Video Renderer ensures smooth playback with proper color reproduction and HDR support on compatible displays.

For subtitle handling, the pack integrates DirectVobSub to display SRT, ASS, and other external subtitle formats automatically.

File analysis capabilities come from MediaInfo, which reveals detailed codec information, bitrates, and container specifications for any media file.

Choose Your Version

K-Lite Codec Pack Basic provides essential decoders for everyday use - ideal if you only need to fix playback issues without additional tools.

K-Lite Codec Pack Standard adds broader format support and includes MPC-HC as the default media player.

K-Lite Codec Pack Full delivers encoding capabilities alongside decoding, suitable for users who create video content.

For the most comprehensive solution with advanced encoding tools, professional filters like madVR, and FFDShow processing options, download the K-Lite Mega Codec Pack.

Why Choose K-Lite Over Other Codec Packs

K-Lite Codec Pack maintains an aggressive update schedule, incorporating the latest codec improvements within days of their release.

Unlike abandoned alternatives such as Codec Pack All in 1 or legacy solutions like ACE Mega CodecS, K-Lite receives continuous development with bug fixes and new format support.

The pack never installs conflicting components that break existing functionality. Each update automatically removes outdated codecs before installing newer versions, preventing the decoder conflicts that plague manual codec installations.

Advanced users can customize every aspect through the detailed installer options, while beginners can trust the recommended defaults for trouble-free setup.

Format Support and Compatibility

K-Lite handles modern compression standards including HEVC for 4K content, AV1 for streaming optimization, and VP9 for web video. Legacy format support covers DivX, Xvid, MPEG-2, and virtually every container format from AVI to MKV to WebM.

Audio codec support spans MP3, AAC, FLAC, DTS, AC3, and lossless formats. The included splitters properly handle Matroska containers with multiple audio tracks and embedded subtitles.

If you prefer standalone players, K-Lite also improves playback in VLC Media Player, PotPlayer, and MPC-BE by providing system-wide DirectShow filters these applications can utilize.

Version 19 Updates

The latest release includes updated components: MPC-HC version 2.5.6.34, LAV Filters version 0.80-12, MPC Video Renderer version 0.9.19.2490, and MediaInfo Lite version 25.10.

System Requirements

K-Lite Codec Pack supports Windows XP, Vista, 7, 8, 10, and 11 with full compatibility for both 32-bit and 64-bit systems. The pack requires minimal disk space and system resources, making it suitable for older hardware while taking full advantage of modern processors and GPU acceleration.

For portable use, copy the installation to a USB drive and carry your complete codec solution between computers without registry modifications.

Related Resources

Learn more about video codecs in our guide on How Codecs Work or explore The Future of Video Codecs to understand HEVC, AV1, and VVC developments.

For HEVC-specific playback guidance, see Best Players for HEVC Files and Playing HEVC Files on VLC Media Player.

Download K-Lite Codec Pack now and permanently solve media playback problems on your Windows system.