Compress Videos to Reduce File Size

MPEG-4 Part 14 - the most universal video container supporting H.264, H.265 (HEVC), and AV1 codecs. Perfect for web streaming, social media, mobile devices, and general distribution. Excellent compression with broad compatibility across all platforms and devices. Standard for YouTube, Instagram, TikTok, and virtually all modern video applications. Balances quality, file size, and universal playback support.

Audio Video Interleave - legacy Microsoft container from 1992, widely compatible but inefficient by modern standards. Supports various codecs but typically uses older compression methods. Large file sizes compared to MP4 but plays on virtually any device including very old systems. Common in older video archives, legacy content, and situations requiring maximum backwards compatibility with vintage hardware and software.

Matroska Multimedia Container - open-source format offering maximum flexibility with support for unlimited video, audio, and subtitle tracks in single file. Excellent for movies with multiple languages, commentary tracks, and complex media. Supports any codec including H.264, H.265, VP9, and AV1. Popular for high-quality video archiving, anime, and content requiring advanced features. Growing adoption across media players.

QuickTime Movie - Apple's native video format, standard for macOS, iOS, and professional video editing (Final Cut Pro, iMovie). Supports high-quality codecs and advanced features like alpha channels. Excellent compatibility on Apple devices but may require additional codecs on Windows. Professional standard for video production, motion graphics, and Apple-based workflows. Ideal for 4K and high-resolution video editing.

Windows Media Video - Microsoft's proprietary format optimized for Windows platforms and Windows Media Player. Good compression with DRM support for protected content. Native playback on Windows systems but limited compatibility elsewhere. Common in corporate environments, Windows-based training videos, and legacy Windows applications. Largely superseded by MP4 but maintained for Windows ecosystem compatibility.

Flash Video - legacy format that dominated early internet video streaming (YouTube pre-2015, livestreaming platforms). Small file sizes with acceptable quality for web delivery. Obsolete due to Flash deprecation in 2020 but encountered in archived web content and legacy video libraries. Maintained for accessing historical internet video content and converting old Flash-based videos to modern formats.

WebM - open-source container developed by Google for HTML5 video, using VP8, VP9, or AV1 codecs. Royalty-free with excellent compression efficiency (VP9 matches H.265, AV1 exceeds it). Native support in all modern browsers without plugins. Ideal for web streaming, HTML5 video players, and YouTube (uses WebM for higher resolutions). Better compression than H.264 at equivalent quality, making it perfect for bandwidth-conscious web applications.

Ogg Video - open-source container using Theora video codec, part of Xiph.Org's patent-free multimedia suite. Free from licensing fees, making it attractive for open-source projects. Lower compression efficiency than modern codecs but universally supported in open-source software. Common in Linux applications, Wikipedia videos, and projects requiring completely free formats. Historical format from early HTML5 video standardization efforts.

MPEG-4 Video - Apple's variant of MP4 format used by iTunes Store, Apple TV, and iOS devices. Nearly identical to MP4 but supports Apple's FairPlay DRM for protected content. Standard for purchased/rented movies and TV shows from Apple. Better compatibility with Apple ecosystem than standard MP4. Ideal for iTunes users and Apple device libraries requiring DRM-protected video content.

MPEG Program Stream - standard container for MPEG-1 and MPEG-2 video, fundamental to DVD, VCD, and broadcast television. Foundation of digital video standardization. Typical bitrates 4-9 Mbps for DVD quality. Widely supported by all playback devices including DVD players and older hardware. Essential format for DVD authoring, broadcast production, and legacy video workflows. Still relevant in professional broadcasting and DVD production.

Motion Picture Experts Group format - encompasses MPEG-1, MPEG-2, and MPEG-4 standards developed for digital video compression. Industry foundation for DVD, Blu-ray, broadcast television, and streaming. Different MPEG versions optimized for various applications (MPEG-1 for VCD, MPEG-2 for DVD/broadcast, MPEG-4 for internet streaming). Professional standard in television production, cinema distribution, and video archiving across all broadcast standards.

Video Object - DVD-Video format containing multiplexed video (MPEG-2), audio (AC3, DTS, PCM), subtitles, and menu navigation data. Standard structure for commercial DVDs. Supports multiple audio tracks and subtitle languages. Copy protection (CSS) often included. Essential for DVD authoring, extracting DVD content, and accessing video from DVD backups. Contains chapter information and interactive menu systems for professional DVD production.

AVCHD (Advanced Video Coding High Definition) - format used by consumer HD camcorders from Sony, Panasonic, and others. Uses H.264 codec with high bitrates for excellent quality. Typical for prosumer and consumer video cameras recording 1080p/1080i footage. Contains metadata for camera settings, timecode, and GPS. Standard for importing camcorder footage into video editing software. Maintains high quality suitable for broadcast and professional post-production.

Blu-ray BDAV (Blu-ray Disc Audio-Video) - transport stream format for Blu-ray discs and AVCHD cameras. Contains H.264 or VC-1 video at high bitrates (up to 40 Mbps). Standard for HD camcorders and Blu-ray video recording. Supports 1080p, 1080i, and 4K resolutions. Essential for Blu-ray authoring, extracting Blu-ray content, and working with high-definition camcorder recordings. Professional quality suitable for broadcast and digital cinema workflows.

3GPP (Third Generation Partnership Project) - mobile video format designed for 3G cellular networks and early smartphones. Highly compressed for limited bandwidth and storage. Typical resolutions QCIF to QVGA with low bitrates (64-384kbps). Standard on feature phones, early smartphones, and mobile messaging services (MMS). Legacy format largely replaced by MP4 but still encountered in old mobile phone recordings and archived mobile content.

3GPP2 - mobile video format variant for CDMA networks (Verizon, Sprint legacy networks). Similar to 3GP but with CDMA-specific optimizations. Used in early CDMA feature phones and smartphones. Supports MPEG-4 and H.263 video with AMR or AAC audio. Historical format from pre-4G era, maintained for accessing archived mobile video from CDMA devices and legacy cellular network recordings.

RealMedia - pioneering streaming video format from RealNetworks (1997), enabling video streaming on dial-up internet. Variable bitrate optimization for low-bandwidth delivery. Revolutionary in late 1990s internet but obsoleted by modern formats (MP4, WebM). Common in archived news sites, early internet video content, and legacy streaming media libraries. Historical format essential for accessing early internet video archives and vintage streaming content.

RealMedia Variable Bitrate - improved version of RealMedia using variable bitrate encoding for better quality-to-size ratio. Allocates more bits to complex scenes, less to simple ones. Popular in early 2000s for anime fansubs and movie distribution. Better quality than standard RM at similar file sizes. Legacy format encountered in archived video collections and vintage internet downloads from pre-YouTube era.

Advanced Systems Format - Microsoft's multimedia container supporting Windows Media Video and Audio. Designed for streaming with DRM capabilities. Foundation for WMV and WMA formats. Supports metadata, chapters, and multiple streams. Common in Windows Media ecosystem and corporate streaming solutions. Legacy format maintained for Windows compatibility and accessing archived Windows Media content from 2000s-era web streaming.

Shockwave Flash - Adobe Flash format containing animations, vector graphics, and video content. Dominated interactive web content and online video (YouTube 2005-2015). Obsolete after Flash end-of-life in December 2020. Small file sizes for animations but security concerns led to deprecation. Historical format essential for archiving Flash games, interactive websites, and early internet animations from Flash era (1996-2020).