Desproxy is tunneling proxy (using the CONNECT method, as used by HTTPS) with helper programs to use this proxy. These include a DNS server and a SOCKS4/SOCKS5 proxy, running with or without inetd for simple port forwarding with inetd. This allows you to use TCP applications (IRC, telnet, fetchmail, SSH, etc.) through your firewall proxy. Features include proxy authentification and multiplatform support.
Image Alchemy has the ability to convert between over 90 different raster image formats (including all colorspace and compression variations of each format). Color management features include gamma correction, undercolour removal, seven high quality dithers, colorspace conversion, and palette manipulation. It also includes a Postscript interpreter.
SnackAmp is a multi-platform audio file and streaming music (MP3,Ogg, wav, etc.) player and file organizer suitable for very large music collections. Stand alone executables for Windows or Linux are available for download. An integrated Web server provides the ability to remote control the client and serve your music collection as streaming audio.
Dar is a shell command that makes backup of a directory tree and files. Its features include splitting archives over several files, DVD, CD, ZIP, or floppies, compression, full or differential backups, strong encryption, proper saving and restoration of hard links, extended attributes, file forks, Door inodes, and sparse files, remote backup using pipes and external commands (such as ssh), and rearrangement of the "slices" of an existing archive. It can run commands between slices, before and after saving some defined files or directories (for a proper database backup, for example), and quickly retrieve individual files from differential and full backups. Several external GUIs exist as alternatives to its CLI interface, like kdar, DarGUI, SaraB, etc.
Xvid (formerly XviD) is an open source MPEG-4 video codec, implementing MPEG-4 Simple Profile, Advanced Simple Profile, and Advanced Video Coding standards. It is written in C with assembler optimizations for quality and speed (including MMX, SSE, and 3Dnow! code for i386 and AltiVec for PowerPC), and is especially optimized towards offline, multi-pass compression for storage and archival purposes.