mp4

FastFlix is a free GUI for H.264, HEVC and AV1 hardware and software encoding!

Metadata parser for audio and video media files. Supports file and stream inputs in Node.js and browser environments, extracting format, tag, and duration information.

FFME: The Advanced WPF MediaElement (based on FFmpeg)

Small and efficient screen recording utility for Windows 10 and 11

Self-hosted Chrome → NAS pipeline: capture HLS / DASH / MP4 streams from any site and download to your NAS. Single multi-arch Docker image (FastAPI + worker + ffmpeg) distributed via GHCR.

A web-based GUI for quickly generating common FFmpeg command-line operations.

m3u8视频下载工具, 提供windows/macos图形界面, 下载后自动将ts文件合并、转换格式为mp4

Avidemux2, simple video editor

FFmpegCommand适用于Android的FFmpeg命令库，实现了对音视频相关的处理，能够快速的处理音视频，大概功能包括：音视频剪切，音视频转码，音视频解码原始数据，音视频编码，视频转图片或gif，视频添加水印，多画面拼接，音频混音，视频亮度和对比度，音频淡入和淡出效果等

Open karaoke party system

A tag editor with Qt GUI and command-line interface supporting MP4/M4A/AAC (iTunes), ID3, Vorbis, Opus, FLAC and Matroska

🎞 Hardware-accelerated video transcoding using Android MediaCodec APIs. Supports cropping, concatenation, clipping, audio processing, video speed and much more.

Library and tools for working with MP4 files containing video, audio, subtitles, or metadata. The focus is on fragmented files. Includes mp4ff-info, mp4ff-encrypt, mp4ff-decrypt and other tools.

ID3, MP4 and OGG/FLAC metadata parsing in Go

A Swift wrapper for the FFmpeg API

音视频学习，相关文件格式/协议分析，框架学习等。encode decode；rgb yuv h264 aac flv mp4 rtmp；libyuv x264 openh264 faac faad2 fdk-aac librtmp ffmpeg sdl2 webrtc；android ios capture videotoolbox；

jMuxer - a simple javascript mp4 muxer that works in both browser and node environment.

Simple. Fast. Powerful YouTube Downloader.

MP4 multiplexer in pure TypeScript with support for WebCodecs API, video & audio.

Fully managed, portable and easy-to-use C# library to read and edit audio data and metadata (tags) from various audio formats, playlists and CUE sheets

Go library for reading and writing MP4 file

golang library for rtmp, mpeg-ts,mpeg-ps,flv,mp4,ogg,rtsp