Freeware: Open Source

Open Office is the open source equivalent to Microsoft Office. Download OpenOffice and use OpenOffice Writer, Open Office Calc, office suite and more. Get your free Open Office download.

vtiger CRM is an open source Customer Relationship Management (CRM) software mainly for Sales force working in small and medium businesses.

Open source program, with a Scriptol code source and a PHP executable, to synchronize the contents of a website with a local source directory. A single command is sufficient to parse all files and upload the ones that have been modified or added.

ManagePC is a free open source .NET application for PC management in Windows environments.

Mouse Gestures is an open source (LGPL) pure Java library for recognition and processing mouse gestures. With Mouse Gestures you have a fast way to execute commands without using the keyboard, menus or toolbars.

Bluelock is an open source application that locks your Windows PC if a particular Bluetooth device is not detected.

Mozilla is an open-source web browser, designed for standards compliance, performance and portability. Mozilla.

Ogg Vorbis is a completely open, patent-free, professional audio encoding and streaming technology with all the benefits of Open Source.This encoder allows to rip CD tracks to Ogg-Vorbis 1.

OpenEnterpriseX is a free, open source, comprehensive and standards-based Java(TM)/J2EE(TM) development suite distribution for building enterprise application.

ChainBuilder ESB is an open source solution for use in Service Oriented Architecture (SOA) environments. ChainBuilder ESB creates standards-based components though drag and drop graphical user interfaces.

FileSplitter is a freeware and open source, no frills tool to split up files into a specified number of chunks.

TuxGuitar is an easy to use and open source music composer, multitrack tablature editor and player.

ChainBuilder ESB is an open source Enterprise Service Bus. ChainBuilder ESB allows IT developers with Service Oriented Architecture (SOA) infrastructures to create standards-based ESB components through Eclipse-based graphical user interfaces.

Apatar is the open source leader in data mashup integration. It is the first company to bring open source data mashups solutions.

Visifire is a set of open source charts - powered by Microsoft Silverlight. With Visifire you can create and embed visually stunning animated Silverlight Charts within minutes. Visifire is easy to use and independent of the server side technology.

TinyGraphs is an open source Excel add-in that creates sparklines,mini column graphs, and area graphs from a row of data.

Dr. DivX is an open source video conversion application that lets you create DivX video from nearly any source file, including MPEG-1, MPEG-2, MPEG-4, DV, AVI and MOV. Melding power with simplicity, Dr.

MailManager is the leading Open Source Email Response Management product. It is used by thousands of people in call centers, businesses, education and government.

Magnolia is the first open-source content-management-system (CMS) which adheres to the upcoming standard of Java content repositories (JCR). Its main goal is ease of use for all parties involved in running a CMS.

WR Time Tracker is an open source, free web-based work time tracking system. It is simple and very easy to use.

T42 is a free, open source implementation of unix ntalk protocol. Built in "personal secretary" will record your missing calls for you, akin to answering machine.

DC++ is an open source client for the Direct Connect protocol. Direct Connect allows you to share files over the internet without restrictions or limits. The client is completely free of advertisements and has a nice, easy to use interface.

Powerful, flexible signature randomizer for email and news clients; freeware, open source. To my knowledge, it is the most featureful signature generator for Windows. Supports text, RTF and HTML-formatted signatures.

Open source skinnable visual components package for Delphi. Default skins: Win Classic, WinXP, Opera Standard, skins based on popular Opera skins and others.

An open source 3D Cube screensaver. Features include:Select you own images for the 3D Cube screensaver. Select the Speed of Rotation. Free and Easy Distribution of the screensaver.Source Code also available.

Speech and Debate Timekeeper is an open source, multi-platform timer for speech and debate competitions.

OpenOffice.org is the open source project through which Sun Microsystems is releasing the technology for the popular StarOffice productivity suite.

Joomla! is a powerful Open Source Content Management System for building professional web sites easily. It is often the system of choice for small business or home users who want a professional looking site that's simple to deploy and use.

The Market Analysis System (MAS) is an open-source software application that provides tools for analysis of financial markets using technical analysis.

NAnt Wizard is a compact and lightweight application that facilitates your work with NAnt, an extremely popular open-source .NET build tool. You won't have to build your projects using the command line anymore.

Visifire is a set of open source data visualization components - powered by Microsoft« Silverlight. With Visifire you can create and embed visually stunning animated Silverlight Charts within minutes.

Freeware with full source code!The Open QBuilder (OQBuilder) is a simple "visual query builder". You can use OQBuilder in your Borland Delphi and Borland C++Builder applications to make easier SQL-code generation.

Zekr is an open platform for research on the Holy Quran.It is a Quran based project, planned to be a universal, open source,cross-platform application to perform most of the usual refers to Quran.

Feedreader is a lightweight open-source aggregator that supports RSS and ATOM formats. It works under all Windows versions from Windows 95 to XP.

Dipstick is a free, open source utility that lets you quickly evaluate mirror sites and figure out which one is the best suited for download for you at this very moment.

JSummer is a platformindependent, open source tool to compute and check MD5, MD4, MD2, SHA-160, SHA-256, SHA-384, SHA-512, RIPEMD128, RIPEMD160, WHIRLPOOL, TIGER, HAVAL message digest.

lphant is a new free open source p2p client for the edonkey/emule network written in c# using the .NET framework. lphant is fully compatible with emule/edonkey protocol.

SumatraPDF is a free, slim, open-source PDF viewer that does what any other pdf viewer does. It's small size and low memory consumtion makes it an ideal program for older systems. Sumatra has a minimalistic design, small and starts up very fast.

JSummer is a platformindependent, open source tool to compute and check MD5, MD4, MD2, SHA-160, SHA-256, SHA-384, SHA-512, RIPEMD128, RIPEMD160, WHIRLPOOL, TIGER, HAVAL message digest.

Mixere is a free, open-source application for mixing WAV, AIFF, MP3, Ogg Vorbis, Flac, and Mod audio files. Mixere is ideal for live performance, and especially for multi-layered sound collages.

Open source (BSD) PowerShell snap-in featuring CmdLets dedicated to time-series forecasting.

Speak Clipboard is free open source screen reader for Windows XP. It can read out loud the content of your clipboard in plain English. It is great for checking your spelling or grammar, listening to your e-mails or listening to article.

Yasminuroban is an open source "Sokoban" alike game totally written in DHTML (JavaScript, CSS and HTML) that uses keyboard. Includes level editor.

Tipue is an open source JavaScript site search engine. It works with any browser that supports JavaScript 1.3 and at least partially supports the W3C DOM Level 1. Tipue Standard Edition creates and updates Tipue on your site.

Lokad Sales Forecasting for osCommerce is an open source application that features integrated sales forecasts reports for your osCommerce web application. If you keep too much inventory, your expenses go up.

Php-residence is an open source program that can be used in your browser designed to manage daily or weekly rental of house apartments or hotel rooms. It uses a PostgreSQL or MySQL database on backend.

The Project Calculator is an open source software that lets you perform simple and complex calculations using an engine which uses technology .Net 2.0 fully integrated with the operating system.

Open-source CD ripper with built-in support for the new Ogg Vorbis audio codec. Fully supports Freedb lookup and submit.

Sinergia is an open source, web based, help desk solution, developed in C# using version 3 of the .NET framework, and SQL Server database. Among the supported features are: Case Management, Case data structure customization. Management Reports.

HovText is a small freeware and open source Windows application that removes any formatting from the clipboard. That means the text will be pasted as raw text without any HTML code, font size, color or layout etc.