Mac OS X Softwares to Built-in Media Converter

VLC Media Player is a free and open-source cross-platform multimedia player that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. Known for its robust format support and stability, VLC is a favorite for playing virtually any media file without the need for external codecs.

NessViewer is a comprehensive media management suite designed for organizing, viewing, editing, and streaming various media types, including images, audio, and video. It functions as an all-in-one solution for personal media libraries.

iFlicks is a macOS application designed to organize and enhance your video library, specifically tailored for seamless integration with iTunes (now Apple TV app). It automates the process of adding metadata, converting video formats, embedding subtitles, and ensuring your media is perfectly formatted for playback on Apple devices.

Elmedia Player is a versatile and free media player for macOS, designed to handle a wide range of video and audio formats effortlessly. It boasts integrated online video downloading capabilities and seamless streaming features, making it more than just a player.

doubleTwist is a versatile media management and playback application that allows users to organize their music, videos, and photos, sync with various devices including Android and iTunes libraries, and discover new content through features like internet radio.

aTunes is a versatile, open-source audio player and music manager built on Java, offering robust features for organizing, playing, and managing various audio formats. It leverages MPlayer for playback and includes capabilities like internet radio streaming, podcast management, and integration with music services.

Vox Music Player is a high-fidelity audio player designed for discerning music lovers. It offers extensive support for popular and lossless formats, cloud sync capabilities, advanced playback features, and integration with streaming services, all within a lightweight and elegant interface. It aims to deliver superior sound quality and manage large music libraries efficiently.

Quod Libet is a highly extensible GTK+-based audio player for Linux, focusing on powerful music library management and flexible tagging. Written in Python and using the Mutagen library, it offers extensive customization and handles diverse audio formats seamlessly.

QuickTime Player is Apple's versatile multimedia framework and player, offering seamless playback of various audio, video, and image formats. Beyond simple playback, it includes basic editing, screen recording, and conversion capabilities, making it a useful tool for Mac users.

Miro was a comprehensive, open-source media player and internet TV application. It allowed users to discover, download, and play videos and music from various online sources, including podcasts, video feeds, and BitTorrent. It offered features like built-in torrenting, media conversion, and integration with Android devices.

Banshee was a versatile media player and management application that supported various audio and video formats, podcasts, and seamless library organization. It included features like smart playlists, integrated media conversion, and device synchronization.

KMPlayer, also known as K-Multimedia Player, is a versatile media player for Windows, Android, and iOS. It supports a vast array of audio and video formats, offering a comprehensive playback experience with advanced features and customization options.