Circuit Simulator is an open-source electric circuit simulator. ...more

Converber is a unit converter. ...more

Instreamia provides online courses. ...more

OpalCalc is an interesting combination of a scientific calculator and a spreadsheet, which comes packed with features. ...more

Windows Calculator is a software calculator included in all versions of Windows. ...more

Cram is an online platform to create and share online flashcards. ...more

Merriam-Webster is an online dictionary. ...more

codepad is an online compiler/interpreter, and a simple collaboration tool. ...more

SymPy is a Python library for symbolic computation. It provides computer algebra capabilities either as a standalone application, as a library to other applications, or live on the web as SymPy Live or SymPy Gamma. ...more

Liveweave is a HTML5, CSS3 & JavaScript playground for web designers and developers. ...more

fxSolver is a math solver for engineering and scientific equations. ...more

Free Pascal Compiler (FPC) is a compiler for the closely related programming language dialects, Pascal and Object Pascal. It is free software released under the GNU General Public License. ...more

TuxGuitar is a free, open source tablature editor, which includes features such as tablature editing, score editing, and import and export of Guitar Pro gp3, gp4, and gp5 files. ...more

Microsoft Virtual Academy offers hundreds of free courses for anyone interested in improving their computer or IT skills. ...more

Camtasia Studio and Camtasia for Mac are software suites, created and published by TechSmith, for creating video tutorials and presentations directly. ...more

Omnipointment helps students find time for group meetings and helps teachers understand how their student teams are working together. ...more

Wolfram Alpha is a computational knowledge engine or answer engine developed by Wolfram Research. ...more

Kiwix is a free and open-source offline web browser. ...more

impress.js is a presentation framework based on the power of CSS3 transforms and transitions in modern browsers. ...more