is an extensive suite of free programs that deal with Algebra & Functions, Geometry & Trigonometry, and Statistics & Probability. Released last month, these Java-based cross-platform tools were developed through an NSF project directed by Christian Hirsch (Western Michigan) and Brin Keller (Michigan State). Support for the tools includes sample lessons, data sets, and extensive help.

Web based code review and project management for Git based projects.

Gerrit is a web based code review system, facilitating online code reviews for projects using the Git version control system.

Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer.

Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.
Runs on Windows, Linux and Mac OS X. Gephi is open-source and free.

Welcome to the Text Mechanic! A collection of free, online, browser-based, text editing/manipulation tools.

FileInfo.com contains a searchable database of thousands of file extensions with detailed information about the associated file types. You can use FileInfo.com to lookup information about unknown file types and find programs that open the files.

Geany is a text editor using the GTK2 toolkit with basic features of an integrated development environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages. It supports many filetypes and has some nice features.

LaTeX ( /ˈleɪtɛk/, /ˈleɪtɛx/, /ˈlɑːtɛx/, or /ˈlɑːtɛk/) is a document markup language and document preparation system for the TeX typesetting program.

For more than a decade, the Nmap Project has been cataloguing the network security community's favorite tools. In 2011 this site became much more dynamic, offering ratings, reviews, searching, sorting, and a new tool suggestion form. This site allows open source and commercial tools on any platform, except those tools that we maintain (such as the Nmap Security Scanner, Ncat network connector, and Nping packet manipulator).

Easy Install is a python module (easy_install) bundled with setuptools that lets you automatically download, build, install, and manage Python packages.

Google Calendar Labs is a testing ground for experimental features that aren't quite ready for primetime. They may change, break or disappear at any time.

The open source is a great way to implement the newest ideas and latest concepts into design.

vvvv is a graphical programming environment for easy prototyping and development. It is designed to facilitate the handling of large media environments with physical interfaces, real-time motion graphics, audio and video that can interact with many users simultaneously.

"Eggs are to Pythons as Jars are to Java..."

Python eggs are a way of bundling additional information with a Python project, that allows the project's dependencies to be checked and satisfied at runtime, as well as allowing projects to provide plugins for other projects.

There are several binary formats that embody eggs, but the most common is '.egg' zipfile format, because it's a convenient one for distributing projects. All of the formats support including package-specific data, project-wide metadata, C extensions, and Python code.

requires macports for mac

The JavaScript Code Quality Tool

JSMin is a filter which removes comments and unnecessary whitespace from JavaScript files. It typically reduces filesize by half, resulting in faster downloads. It also encourages a more expressive programming style because it eliminates the download cost of clean, literate self-documentation.

S5 is a slide show format based entirely on XHTML, CSS, and JavaScript. With one file, you can run a complete slide show and have a printer-friendly version as well. The markup used for the slides is very simple, highly semantic, and completely accessible. Anyone with even a smidgen of familiarity with HTML or XHTML can look at the markup and figure out how to adapt it to their particular needs. Anyone familiar with CSS can create their own slide show theme. It's totally simple, and it's totally standards-driven

Welcome to CMake, the cross-platform, open-source build system. CMake is a family of tools designed to build, test and package software. CMake is used to control the software compilation process using simple platform and compiler independent configuration files. CMake generates native makefiles and workspaces that can be used in the compiler environment of your choice.

The best tools to help you preserve your privacy online. Surf securely and communicate with privacy. No adware, no spyware, just good software

www-based

Web applications have evolved from simple HTML pages into rich, interactive applications that provide a great user experience. Today's web apps pose a challenge for developers, however: how do you create and maintain efficient JavaScript code that downloads quickly and works across different browsers?
The Closure tools help developers to build rich web applications with JavaScript that is both powerful and efficient. The Closure tools include:

Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping).

Nmap was named “Security Product of the Year” by Linux Journal, Info World, LinuxQuestions.Org, and Codetalker Digest.

py2exe is a Python Distutils extension which converts Python scripts into executable Windows programs, able to run without requiring a Python installation.

An assortment of projects developing new open source technology related to virtualization and the cloud.

Every website is different and every designer’s set of tools and resources will be different too.

For this reason it is important to stay on top of those sites most popular among designers and this list acts as a solid starting point.

Explore these resources and let me know in comments your favorites as well.

Software development and collaboration tools for teams.

Some of the best SEO tools ever invented exist on a geek's homemade Google Docs spreadsheet pulling in raw API data.

Prezi is a cloud-based presentation software that opens up a new world between whiteboards and slides. The zoomable canvas makes it fun to explore ideas and the connections between them. The result: visually captivating presentations that lead your audience down a path of discovery.

learn git one commit at a time
by Nick Quaranto

CMSmatrix lets you easily compare the features in content management system products.

Doxygen is a documentation system for C++, C, Java, Objective-C, Python, IDL (Corba and Microsoft flavors), Fortran, VHDL, PHP, C#, and to some extent D.

ex·u·ber·ant : produced in extreme abundance : PLENTIFUL synonym see PROFUSE

Ctags generates an index (or tag) file of language objects found in source files that allows these items to be quickly and easily located by a text editor or other utility. A tag signifies a language object for which an index entry is available (or, alternatively, the index entry created for that object).

Making over a billion long URLs usable! Serving billions of redirects per month.

'Diggity' family of search tools will help security teams and pen testers find searchable flaws before bad guys, Stach & Liu researchers say.

click, diagnose, treat

RVM is a command line tool which allows us to easily install, manage and work with multiple ruby environments from interpreters to sets of gems.

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be? exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions.

Google on Tuesday unveiled Swiffy, a free tool for developers to convert some Flash files (.SWFs) into HTML5 code.

RT is a battle-tested issue tracking system which thousands of organizations use for bug tracking, help desk ticketing, customer service, workflow processes, change management, network operations, youth counselling and even more.

Safer Browsing, see where your short URLs really go

Anonymizer, a company that helps businesses and individuals conceal private information when searching the Web

The startup webapp pulls data from LinkedIN profiles to visualize your qualifications and connections.

Create your newspaper. Today.Turn Twitter and Facebook into online newspapers
in just a few clicks.Treat your readers to fresh news daily.

Exceptional tracks errors in web apps. It reports them in real-time and gathers the info you need to fix them fast.

a simple web-based issue tracking application.

If This Then That
this (trigger) that (action) on (channel)

AlternativeTo is a new approach to finding good software. Tell us what application you want to replace and we give you great alternatives, based on user recommendations.

Take Ubuntu or Fedora wherever you go

Roundup is a simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces. It is based on the winning design from Ka-Ping Yee in the Software Carpentry “Track” design competition.

Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.

- To help Project Managers find, evaluate and select the best Project Management solution for their needs, and
- To help Companies offering project management services or software to get the word out about their solution.

JIRA provides issue tracking and project tracking for software development teams to improve code quality and the speed of development.

$$, but free for academic institutions

Collaborative, lightweight project management tool, brought to you by the experts in agile software development.Tracker is a simple, story-based project planning tool that allows teams to collaborate and react instantly to real-world changes. It's based on agile software development methods, but it can be used on a variety of types of projects. Tracker frees you up to focus on getting things done, without getting bogged down keeping your plans in sync with reality.

A complete list of help desk software products.

You need a few tools open to begin hacking away.

Daniel Nouri is a Python and JavaScript enthusiast with nine years of professional Python experience. He works independently and is available for hire as software engineer, Python trainer, and open source consultant.

curl is a command line tool for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET and TFTP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks.

Bringing Serious Developer Tools and Techniques to Arduino, the Popular Single-Board Platform
by Maik Schmidt
You want to get into this popular open-source electronics prototyping platform, but you don’t want to have to work with development tools designed for artists and hobbyists. Maik shows you how to develop software for Arduino in a professional way.

analyzes Python source code looking for bugs and signs of poor quality.
Pylint is a python tool that checks if a module satisfies a coding standard. Pylint is similar to PyChecker but offers more features,

PyChecker is a tool for finding bugs in python source code. It finds problems that are typically caught by a compiler for less dynamic languages, like C and C++. It is similar to lint. Because of the dynamic nature of python, some warnings may be incorrect; however, spurious warnings should be fairly infrequent.

XXX -> forwards to Go Daddy
phpFormGenerator is a an easy, online tool for creating reliable, efficient, and aesthetically pleasing web forms in a snap. No programming of any sort is required: phpFormGenerator generates the HTML code, the form processor code (PHP), and the field validation code automatically via an easy, point-and-click interface.