aria2 : A utility for downloading files

aria2 is a utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink. It has a powerful segmented downloading ability, downloading a file from multiple sources and multiple protocols and utilizing your download bandwidth to the maximum. It supports downloading a file from HTTP(S)/FTP and BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP is uploaded to the BitTorrent swarm. Using Metalink's chunk checksums, aria2 automatically validates chunks of data while downloading a file like BitTorrent.

• Licenses : GPL
• Operating Systems : POSIX, Linux, Mac OS X, Windows, Cygwin, BSD, FreeBSD
• Implementation : C++

Botan : A C++ library of cryptographic algorithms, including AES, DES, SHA-1, RSA, DSA, Diffie-Hellman, and many others

Botan is a C++ library of cryptographic algorithms, including AES, DES, SHA-1, RSA, DSA, Diffie-Hellman, and many others. It also supports SSL/TLS, X.509 certificates and CRLs, and PKCS #10 certificate requests, and has a high level filter/pipe message processing system. The library is easily portable to most systems and compilers, and includes a substantial tutorial and API reference.

• Licenses : BSD Revised
• Operating Systems : Linux, Mac OS, X Windows, Windows, FreeBSD, NetBSD, Solaris
• Implementation : C++, Assembly

Webalizer : A Web server log analysis program

The Webalizer is a Web server log analysis program. It is designed to scan web server log files in various formats and produce usage statistics in HTML format for viewing through a browser.

• Licenses : GPL

netCDF Operators

The netCDF Operators (NCO) facilitates manipulation and analysis of self-describing data stored in the (freely available) netCDF format.

• Licenses : GPLv3
• Operating Systems : POSIX
• Implementation : C

NetCDF : A format developed at Unidata that was inspired by the CDF format from NASA

NetCDF is a format developed at Unidata that was inspired by the CDF format from NASA. NetCDF stands for "Network Common Data Form" and is a self-describin

g data format, commonly used in scientific and engineering applications.

• Licenses : BSD Original
• Operating Systems : POSIX, IRIX, HP-UX, GNU/Hurd, BSD, OpenBSD, NetBSD, FreeBSD, Unix, Solaris, SCO, Linux, BSD/OS, AIX, Windows
• Implementation : Fortran, C++, C

Scan Tailor : An interactive post-processing tool for scanned pages

Scan Tailor is an interactive post-processing tool for scanned pages. It performs operations such as page splitting, deskewing, adding/removing borders, despeckling, and others. You give it raw scans and you get pages ready to be printed or assembled into a PDF or a DJVU file.

• Licenses : GPLv3
• Implementation : C++

ZynAddSubFX : A powerful real-time, multi- timbral software synthesizer for Linux

ZynAddSubFX is a powerful real-time, multi- timbral software synthesizer for Linux. It has microtonal capabilities, and the instruments it creates sound like those from professional keyboards. It includes effects like reverb, echo, chorus, and phaser.

• Licenses : GPL
• Operating Systems : POSIX, Linux, Windows
• Implementation : C++

RCDevs OpenOTP provides strong two-factor authentication with one time passwords (OTP)

RCDevs OpenOTP provides strong two-factor authentication with one time passwords (OTP). It supports OATH RFC-4226 HOTP (counter-based) and TOTP (Time-based), Mobile-OTP, YubiKey Software/Hardware Tokens, SMSOTP, and MAILOTP. It provides a SOAP/XML and RADIUS API and integrates into your LDAP (OpenLDAP, Novell, ActiveDirectory). It works with Web applications, VPNs, Unix, Microsoft, and more. It is composed of the RCDevs WebADM server application, the OpenOTP SOAP service, the optional Radius Bridge, and the User Self-service Desk end-user Web application. VMWare appliances and Web demos are available.

• Licenses : Freeware
• Operating Systems : Unix, Linux
• Implementation : C, PHP

The Drizzle project : Building a database optimized for Cloud and Net applications

The Drizzle project is building a database optimized for Cloud and Net applications. It is being designed for massive concurrency on modern multi-CPU/core architectures. The code is originally derived from MySQL.

• Licenses : GPLv2
• Operating Systems : Linux, FreeBSD, Mac OS X, Solaris
• Implementation : C++

DrQueue : A distributed rendering queue. It helps manage jobs on a render farm

DrQueue is a distributed rendering queue. It helps manage jobs on a render farm. It works under Linux, Mac OS X, FreeBSD, IRIX, and Windows, supports Maya, Blender, Lightwave, Mental Ray, Bmrt (Renderman), 3Delight, and Pixie out of the box, and can support any other renderer or computing task that can be handled via scripting.

• Licenses : GPL
• Operating Systems : Mac OS X, POSIX, BSD, FreeBSD, Linux, IRIX, Windows, Cygwin
• Implementation : C C++

Chef : An open source systems integration framework built to bring the benefits of configuration mangement to your entire infrastructure

Chef is an open source systems integration framework built to bring the benefits of configuration mangement to your entire infrastructure. You write source code to describe how you want each part of your infrastructure to be built, then apply those descriptions to your servers. The result is a fully automated infrastructure: when a new server comes on line, the only thing you have to do is tell Chef what role it should play in your architecture.

Highlight : A universal converter from source code to HTML, XHTML, RTF, TeX, LaTeX, SVG, BBCode, terminal escape sequences, and XML

Highlight is a universal converter from source code to HTML, XHTML, RTF, TeX, LaTeX, SVG, BBCode, terminal escape sequences, and XML. (X)HTML and SVG output are formatted by Cascading Style Sheets. It supports more than 140 programming languages, and includes 40 highlighting color themes. It's possible to easily enhance the parsing database. The converter includes some features to provide a consistent layout of the output code.

• Licenses : GPLv3
• Operating Systems : Windows, POSIX, Linux, Unix
• Implementation : C++

InfiniDB Community Edition

InfiniDB Community Edition is a scale-up, column-oriented database for data warehousing, analytics, business intelligence, and read-intensive applications. InfiniDB's data warehouse columnar engine is multi-terabyte capable and supports a MySQL interface.

• Licenses : GPL v2
• Operating Systems : Linux, Windows
• Implementation : C++, MySQL

Remind : A full-featured calendar/reminder program

Remind is a full-featured calendar/reminder program featuring sophisticated date calculation, moon phases, sunrise/sunset, Hebrew calendar, alarms, PostScript output, an X front-end, multilingual messages, and proper handling of holidays. It also includes scripts for making a nice WWW calendar server.

• Licenses : GPL
• Operating Systems : POSIX
• Implementation : Tcl, C

UsbCryptFormat : A graphical user interface (GUI) for the encryption of USB flash drives or external hard drives

UsbCryptFormat is a graphical user interface (GUI) for the encryption of USB flash drives or external hard drives. It allows the user to reformat a USB flash drive, an SD card, or an external hard drive with an encrypted filesystem very easily and without the danger of destroying data on an internal hard drive because of incautious handling of device names. So it is usable even for a layperson.

• Licenses : GPL
• Operating Systems : Debian GNU/Linux Ubuntu
• Implementation : bash

Barcode Writer in Pure Postscript implements the printing of many barcode formats entirely within PostScript

Barcode Writer in Pure Postscript implements the printing of many barcode formats entirely within PostScript, so that the process of converting the input string into the printed output is performed by the printer itself. The project supports all major barcode formats including EAN-13, EAN-8, UPC-A, UPC-E, ISBN, Code 128 (A, B, and C), Code 39, Code 93, Code 11, ITF-14, GS1 DataBar, MSI, Plessey, Postnet, Code 2 of 5, Codabar, QR Code, PDF417, MaxiCode, Aztec Code, Data Matrix, PostNet, OneCode, RM4SCC, AusPost, etc.

• Licenses : MIT/X
• Operating Systems : OS Independent
• Implementation : PostScript

xhtmldbg provides you with the facility to check and analyze web page content directly

xhtmldbg provides you with the facility to check and analyze web page content directly. All these are good starting points for targeted xhtml development debugging. It features the ability to watch HTTP headers, to watch _POST variables when submitting html forms, css stylesheet monitoring. dom inspector for better documents structure monitoring, to indicate css stylesheet attributes, to indicate current used cookies, to watch javascript errors, auto reload function up to 60 seconds, analyzing SEO keywords, and quick HTTP_USER_AGENT switching.

• Licenses : GPLv3
• Operating Systems : Linux (32 and 64 bit)
• Implementation : C++, QT 4

The Goblin and the Butterfly (TGATB) : 2D/3D client for the MMORPG of the same name

The Goblin and the Butterfly (TGATB) is a 2D/3D client for the MMORPG of the same name.

• Licenses : GPLv2
• Operating Systems : Linux, Windows, Mac OS X
• Implementation : C, SDL

Stantor-Domodulor : A home automation software system

Stantor-Domodulor is a home automation software system. It lets you manage electric and electronic facilities through Web pages, I-mode, and WAP 2 and 1. Stantor can drive Velleman k8000/k8055/k8061 boards, X10 materials, USB webcams, and sound boards. Stantor correspondents can sent alerts via email and instant messaging. Linux distributions supported are Ubuntu, Fedora, and Mandriva.

• Licenses : GPLv2
• Operating Systems : Fedora, Mandriva, Ubuntu, Linux
• Implementation : HTML, MySQL, PHP, C++, Apache, Video, JavaScript, AJAX

OBD GPS Logger logs OBDII and GPS data

OBD GPS Logger logs OBDII and GPS data. It can then take that logged data and write useful output formats. Interesting information logged and exported includes how fast you're going, how fast the engine's going, the air flow into the engine, and the throttle position.

• Licenses : GPLv2
• Operating Systems : Linux, POSIX, Mac OS X
• Implementation : C

Partition Editor : A graphical frontend to libparted

Gnome Partition Editor is a graphical frontend to libparted. It supports creating, resizing, moving, and copying of partitions.

• Licenses : GPL
• Operating Systems : POSIX
• Implementation : C++

HAproxy : A high-performance and highly-robust TCP and HTTP load balancer

HAproxy is a high-performance and highly-robust TCP and HTTP load balancer which provides cookie-based persistence, content-based switching, advanced traffic regulation with surge protection, automatic failover, run-time regex-based header control, Web-based reporting, advanced logging to help trouble-shooting buggy applications and/or networks, and a few other features. Its own event-driven state machine achieves 20,000 hits per second and surpasses GigaEthernet on modern hardware, even with tens of thousands of simultaneous connections.

• Licenses : GPL
• Operating Systems : POSIX, Linux, BSD, OpenBSD, Solaris
• Implementation : C

Scan Tailor : An interactive post-processing tool for scanned pages

Scan Tailor is an interactive post-processing tool for scanned pages. It performs operations such as page splitting, deskewing, adding/removing borders, despeckling, and others. You give it raw scans and you get pages ready to be printed or assembled into a PDF or a DJVU file.

• Licenses : GPLv3
• Implementation : C++

ClearOS : An integrated network server gateway solution for small and distributed organizations

ClearOS is an integrated network server gateway solution for small and distributed organizations. The software provides all the necessary server tools to run an organization including email, anti-virus, anti-spam, file sharing, groupware, VPN, firewall, intrusion detection/prevention, content filtering, bandwidth management, multi-WAN, and more. Through the intuitive Web-based management console, an administrator can configure the server software along with integrated cloud-based services.

• Licenses : GPL, Public Domain
• Implementation : PHP, Perl, C, Python, Lua

Freeside : An open-source billing and trouble ticketing packag

Freeside is an open-source billing and trouble ticketing package for ISPs, VoIP, hosting, service, and content providers, and other online businesses.

• Licenses : AGPL
• Operating Systems : POSIX, BSD, FreeBSD, Solaris, Linux, Unix
• Implementation : Perl, SQL

Glass : A library for distributed computing and cloud computing, focusing in high performance, low lag applications

Glass is a library for distributed computing and cloud computing, focusing in high performance, low lag applications, particularly virtual and augmented reality.

The Glass framework is a scalable set of components that can be used by applications to perform distributed computing. Applications are built reusing the available components as needed. One of the major goals of Glass is to be a user-friendly framework, not only suitable for new applications, but also for legacy code. This is an important feature, as most available solutions for distributed computing require a substantial amount of rewrite of legacy code; some of them require a complete change of the application design.

• Licenses : LGPL
• Operating Systems : Mac OS X, Windows, Cygwin, POSIX, IRIX, Linux
• Implementation : C++, Java

Ziproxy : A high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images

Ziproxy is a high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images by converting them to lower quality JPEGs or JPEG 2000. It is intended to increase the speed for low-speed Internet connections (mobile, dial-up, other). It's suitable for both home and professional usage. Ziproxy is fully configurable and also features transparent proxy mode, HTML/JS/CSS optimization, operation in daemon mode, a detailed access log with compression statistics, basic authentication, and more.

Licenses : GPLv2, GPL

Operating Systems : Linux, BSD, Cygwin, Mac OS X, FreeBSD

Implementation : C

RetroShare : A cross-platform private P2P sharing program

RetroShare is a cross-platform private P2P sharing program. It lets you share securely with your friends, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides file sharing, chat, messages, and channels.

• Licenses : LGPL GPL
• Operating Systems : POSIX, Linux, Windows, mac
• Implementation : C++, Qt