Browse free open source Codec software and projects below. Use the toggles on the left to filter open source Codec software by OS, license, language, programming language, and project status.

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  • 1

    ffdshow

    A DirectShow and Video for Windows codec (VFW)

    ffdshow is an advanced DirectShow filter and Video for Windows codec (VFW) codec that supports many audio and video formats. For example: H.264, MPEG-4, MPEG-2, H.263, VP3, VP6, Theora, MJPEG, SVQ3, MP3, AC3, DTS, E-AC3, AAC, and Vorbis.
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    Downloads: 2,580 This Week
    Last Update:
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  • 2
    x264vfw
    x264vfw is the VfW (Video for Windows) version of well known x264 encoder + ffh264 decoder (from FFmpeg/Libav project).
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    Downloads: 382 This Week
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  • 3
    MMC is a commander-style media player for Windows, with native, hw accelerated video playing and translucent gui. Mpxplay is a console audio player for DOS and Win32 operating systems. x264vfw, x265vfw and xAV1vfw are video for windows encoder and decoder codecs, useful with VirtualDub.
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    Downloads: 274 This Week
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  • 4
    MPlayer for Win32/Win64

    MPlayer for Win32/Win64

    MPlayer Mencoder FFmpeg native win32/win64 builds

    Binary builds of MPlayer/MEncoder for win32/win64, FFmpeg MinGW related packages and MinGW-w64 toolchains
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    Downloads: 221 This Week
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  • 5

    avbuild

    ffmpeg build tool and prebuilt packages for all platforms

    iOS, android, raspberry pi, windows store, windows desktop, linux, macOS etc. Multiple toolchains support, include gcc, clang, vs2013, vs2015, vs2017. Hardware accelerated decoders and encoders support. Source code: https://github.com/wang-bin/avbuild
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    Downloads: 898 This Week
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  • 6
    mplayer-for-windows

    mplayer-for-windows

    MPlayer & MEncoder Builds for Windows

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    Downloads: 141 This Week
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  • 7

    YUV Player

    yuvplayer which supports planar/packed yuv

    RAW yuv player project is moved to GITHUB. Visit: https://github.com/Tee0125/yuvplayer Old description: Lightweight player for raw YUV/UYVY files.
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    Downloads: 41 This Week
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  • 8
    FFmpeg

    FFmpeg

    Tools to process multimedia content such as audio, video, subtitles...

    A complete, cross-platform solution to record, convert and stream audio and video. FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles, and related metadata. Provides an implementation of a wider range of codecs. Implements streaming protocols, container formats, and basic I/O access. Includes hashers, decompressors and miscellaneous utility functions. Provides means to alter decoded audio and video through a directed graph of connected filters. Provides an abstraction to access capture and playback devices. Implements audio mixing and resampling routines. Implements color conversion and scaling routines. FFmpeg is a command-line toolbox to manipulate, convert and stream multimedia content. ffplay is a minimalistic multimedia player. FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL.
    Downloads: 6 This Week
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  • 9
    A fast closed captions extractor for MPEG and H264 files. Supports DVD, HDTV transport streams, Replay TV. Use this to create .srt (subtitles) files for your TV captures, have transcripts so you can edit subtitles, etc. This project has moved to its own domain: https://www.ccextractor.org Files in sourceforge are left for archival purposes, but new releases will be available from ccextractor.org.
    Downloads: 21 This Week
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  • 10
    AV1 AVIF

    AV1 AVIF

    AV1 Image File Format Specification - ISO-BMFF/HEIF derivative

    AV1 AVIF is the official specification and reference design for the AV1 Image File Format (AVIF), defining how AV1-encoded bitstreams are packaged into the HEIF container format (based on ISOBMFF) to produce AVIF files. The project outlines the syntax and semantics required for AVIF compliance, including support for multiple image profiles, color depths, chroma subsampling modes, HDR/WCG, alpha channels, animation/image sequences, and various color-space/bit-depth combinations — making AVIF a versatile, modern image format suitable for both simple photos and advanced imagery needing high fidelity. The specification ensures interoperability across encoders and decoders, providing guidelines so that images created by any compliant AVIF encoder can be reliably decoded by compliant decoders. As adoption grows, AV1 AVIF plays a crucial role in promoting a royalty-free, open, high-efficiency image standard that competes with older formats such as JPEG and newer proprietary ones.
    Downloads: 3 This Week
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  • 11

    Intel QuickSync Decoder

    A free decoder that utilizes the Intel QuickSync technology

    Abstracts the hassle of HW accelerated decoding in Intel's 2nd generation Core i3/i5/i7/Pentium/Celeron (SandyBridge) or newer Intel CPU/GPU using the Intel QuickSync technology. Started as an internal decoder within FFDShow. Can be easily ported to other DirectShow decoders. The Intel QuickSync decoder is now used within FFDShow, LAV video decoder and PotPlayer.
    Downloads: 13 This Week
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  • 12
    Dolphin DVR Player

    Dolphin DVR Player

    One very easy-to-use powerful but totally free player for DVR videos

    Dolphin DVR Player is one very easy-to-use powerful but totally free player for DVR videos, NVR Videos, HVR videos and CCTV videos. Dolphin DVR Player is one professional H.264/H.265 video player and can play all H.264/H.265 video files smoothly. Dolphin DVR Player is also one NVR, HVR and CCTV video player, only if the video coding is H.264 or H265, the Dolphin DVR Player can detect the video coding type automatically.
    Downloads: 37 This Week
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  • 13
    Lyra

    Lyra

    A Very Low-Bitrate Codec for Speech Compression

    lyra is a neural audio codec designed to deliver intelligible, natural-sounding speech at extremely low bitrates, making real-time communication viable on constrained networks. It replaces hand-engineered codecs with learned models that capture speech characteristics more efficiently and reconstruct waveforms with a neural vocoder. The system targets mobile-class hardware, balancing latency and quality so it can run in real-time on phones. Its architecture is resilient to packet loss and jitter through framing strategies and error concealment, helping conversations remain understandable under adverse conditions. The codebase includes encoder and decoder components, along with tools for data preparation and evaluation. By pushing bitrates down to just a few kilobits per second while retaining quality, lyra expands access to voice calls where bandwidth is scarce.
    Downloads: 1 This Week
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  • 14
    ** Now on Github; https://github.com/aizvorski/h264bitstream ** libh264bitstream provides a complete set of functions to read and write video bitstreams conforming to the ITU-T H.264 | ISO/IEC 14496-10 AVC video standard.
    Downloads: 7 This Week
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  • 15
    This is a program with one, specific purpose: to provide the ability to demux ALL of the streams in any number of Matroska container (mkv) files automatically.
    Downloads: 7 This Week
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  • 16

    FFmpeg iOS

    FFmpeg libraries for iOS

    This is FFmpeg libraries compiled for iOS. If you want to build it yourself, see https://github.com/kewlbear/FFmpeg-iOS-build-script.
    Downloads: 12 This Week
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  • 17
    x264 on win32 w/ DirecShow input and fully variable-framerate support.
    Downloads: 6 This Week
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  • 18
    libsmacker

    libsmacker

    A C library for decoding .smk Smacker Video files

    libsmacker is a cross-platform C library which can be used for decoding Smacker Video files produced by RAD Game Tools. Smacker Video was the king of video middleware in the 1990s, and its 256-color compressed video format was used in over 2600 software titles. Please visit the Project Web site for detailed information.
    Downloads: 8 This Week
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  • 19

    h264enc

    Advanced shell script for video encoding

    Advanced shell script for encoding DVDs, Blu-rays or video files to the H.264 format using the encoding utility MEncoder from the MPlayer project. Supports all the useful options an end-user would need to make a successful encode. The script is a CLI front-end to MEncoder and various audio encoders and container muxers. h264enc is no longer actively developed. Please ty out: https://sourceforge.net/projects/ffx264/ https://sourceforge.net/projects/ffhevc/
    Downloads: 7 This Week
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  • 20
    blackvideo-mini-player

    blackvideo-mini-player

    A standalone lightweight auxiliary CLI video player for BlackVideo.

    Lightweight cross-platform video player (Ada + SDL2 + FFmpeg). Support player for the BlackVideo. Works standalone via CLI or right-click on any video file. Usage Method 1 — Command Line Step 1. Unzip blackvideo-mini-player-v2.3.0.win.zip Step 2. Open the build\ folder, then type cmd directly in the address bar and press Enter — this opens a terminal already in that folder. Alternatively: open Command Prompt anywhere and use cd with the copied path: cd "C:\path\to\blackvideo-mini-player\build" Step 3. Run the player: blackvideo-player.exe "C:\Users\You\Videos\movie.mp4" Method 2 — Right-Click (Recommended) Step 1. Unzip blackvideo-mini-player-v2.3.0.win.zip Step 2. Right-click tools\context_menu\install_context_menu.bat → Run as administrator That's it. Now: Right-click any video file in Explorer Click Open with BlackVideo Player The video plays immediately To remove the right-click entry: tools\context_menu\uninstall_context_menu.bat
    Downloads: 5 This Week
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  • 21
    mp4 faststart

    mp4 faststart

    This software can place the index information at the beginning of the

    When playing MP4 files using HTML5, some files require a long buffering time before playback. This is because some software places the MP4 file's index information at the end of the file. This software can place the index information at the beginning of the file, thus solving the problem of excessive buffering time. 使用 HTML5 播放 MP4 文件时,部分文件需要较长的缓冲时间才能播放。这是因为某些软件会将 MP4 文件的索引信息放在文件末尾。 本软件可以将索引信息放在文件开头,从而解决缓冲时间过长的问题。
    Downloads: 5 This Week
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  • 22
    Video processing source code for algorithms and tools used in software media pipelines. The currently available source code is written in C++ with their associated libraries and DirectShow Filters. Filters include an H.264 encoder, H.264 decoder, H.264 source filter, RTSP sink and source filters, YUV source, RGB to YUV color conversion, croppers, scalers, video mixing/picture in picture filters, rotate filter, virtual mic, and many more. Code is released under BSD license with exception of H.264 codec related classes which are released under LGPL.
    Downloads: 1 This Week
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  • 23
    BlackBelt CodecPack

    BlackBelt CodecPack

    A clean, lean CoDec Pack. FFDShow and LAV Combined.

    Contains support for popular formats. Works especially well with MediaPortal. LAV, ffdshow - why choose between when you can have both in one pack ! WMV/WMA, DivX, AVI, ASF, FLV, Ogg FLAC, HEV1, x264, x265 etc. NO SPYWARE, NO ADWARE, NO TOOLBARS, NO PLAYER - JUST PURE CODECS Windows XP / Vista / 7 / 8 / 10 - 32/64 bit.
    Downloads: 2 This Week
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  • 24
    FRONTEND for mencoder for Windows and Linux. Convert rmvb,avi,mp4,wmv, ogv, mkv, mov, mpg, vob,ogv, ogg, ogm etc To avi (divx5), xvid, dvd iso, h264 in a simple way. Required java runtime 6 and over. (On Linux is required mencoder, dvdauthor and mkisofs)
    Downloads: 1 This Week
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  • 25

    FastoCloud PRO

    IPTV/NVR/CCTV/Video cloud https://fastocloud.com

    IPTV/Video cloud Features: Cross-platform (Linux, MacOSX, FreeBSD, Raspbian/Armbian) GPU/CPU Encode/Decode/Post Processing Stream statistics CCTV Adaptive hls streams Load balancing Temporary urls HLS push EPG scanning Subtitles to text conversions AD insertion Logo overlay Video effects Relays Timeshifts Catchups Playlists Restream/Transcode from online streaming services like Youtube, Twitch Mozaic Many Outputs Physical Inputs Streaming Protocols File Formats Presets Vods/Series server-side support Pay per view channels Channels on demand HTTP Live Streaming (HLS) server-side support Public API, client server communication via JSON RPC Protocol gzip compression Deep learning video analysis Supported deep learning frameworks: Tensorflow NCSDK Caffe ML Hardware:
    Downloads: 3 This Week
    Last Update:
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