Eric Petit (titer)

• Original author
• Core construct, multithreading, and BeOS/OS X/Linux ports
• MPEG demuxer
• MPEG-2, AC3, and MPGA decoders using libmpeg2, liba52, and libavcodec
• LPCM "decoder"
• MPEG-4, MP3, and AAC encoders using libavcodec, libxvidcore, libmp3lame, and libfaac
• AC-3 pass-through
• AVI muxer
• MP4 muxer using libmp4v2
• BeOS interface
• OS X interface
• French translation

Laurent Aimar (fenrir)

• H.264 and Vorbis encoders using libx264 and libvorbis
• OGG/OGM muxer using libogg
• GTK2 interface
• wxWidgets interface

Van Jacobson (van)

• Universal input architecture
• MPEG Standard Target Decoder timing model
• Auto-typing MPEG stream files
• Minor bug fixing in MPEG stream support
• Minor DVD reader fixes
• Chapter mark bug fixes

John Allen (johnallen)

• Core enhancements
• Threading enhancements
• Simplified Mac OS X GUI

Joe Crain (dynaflash)

• Mac OS X GUI enhancements/rewrite

Damiano Galassi (ritsuka)

• macOS GUI
• macOS sandbox and hardened runtime support
• Improved color spaces support
• Various libhb fixes and enhancements

Edward Groenendaal (eddyg)

• Major bug fixes
• Subtitle scan & color
• Performance improvements

David Foster (davidfstr)

• Subtitles from file inputs
• SSA subtitle support

Rodney Hester (rhester)

• iPod firmware 1.2+ 640x480 MPEG-4/H.264 support

Andrew Kimpton (awk)

• MPEG Audio fixes
• MPEG Stream Support

Chris Lee (clee)

• PAR/anamorphic support
• dvdread enhancements
• Linux GUI

Chris Long (chrislong)

• iPod firmware 1.2+ 640x480 MPEG-4/H.264 support

Brian Mario (brianmario)

• Windows GUI

Maurj (maurj)

• Dolby Surround and Dolby Pro Logic II mixdowns
• 6-channel AAC audio from 5.1 source
• Mono AAC audio from mono source
• PAR/anamorphic support in MP4 file format
• Chapter markers in MP4 file format
• Mac OS X GUI enhancements
• Support for DTS audio sources

Mirkwood (mirkwood)

• Windows CLI port

Nyx (Nyx)

• Frame reordering and flushing in MP4

Philippe Rigaux (prigaux)

• 3rd party library integration
• Mac OS X GUI enhancements
• PAR/anamorphic support
• Universal binary build process
• Conversion from jam to make for compiles

Jonathon Rubin (jbrjake)

• Massive core enhancements
• Significant improvements to H.264 support

Scott (s55)

• Windows GUI
• UI concepts and design
• Hardware acceleration
• Devops and infrastructure
• Online documentation

John Stebbins (j45)

• GTK GUI
• TrueHD demuxing
• libavcodec video encoding quality enhancements
• Libhb architecture improvements, JSON API
• Stream and sync improvements
• Flatpak support
• Numerous bug fixes and enhancements

Chris Thoman (huevos_rancheros)

• Ported video filters from libmpcodec

Mark Krenek (travistex)

• Mac OS X GUI enhancements
• Mac OS X GUI queueing system

Kona "Mike" Blend (KonaBlend)

• Build system and related guides

David Rickard (RandomEngy)

• HandBrake Interop Library

Tim Walker (Rodeo)

• Hardware acceleration / Intel QSV
• Libhb and macOS GUI fixes and enhancements
• Dependencies support and integration
• Miscellaneous fixes and enhancements

Bradley Sepos (BradleyS)

• Build system and toolchains
• Dependencies, platform, and device testing
• NLMeans denoiser and other filters
• UI concepts and design
• Official presets
• Online documentation

Maxym Dm (maxim_d33)

• Hardware acceleration / Intel QSV
• Miscellaneous fixes and enhancements

Simon L (Nomis101)

• Internationalization / UI translations lead
• Build system and toolchains fixes and enhancements
• Miscellaneous fixes and enhancements

Artem Galin (agalin89)

• Hardware acceleration and presets / Intel QSV
• Miscellaneous fixes and enhancements