Free
The Carbon Footprint Calculator
Learn to calculate your CO2
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Efficient Conversion Tool for Windows Users
User friendly utility to easily convert between 449 units of measurement
A full version app for Windows, by acethinker.
Efficient Curve Fitting Tool for Windows
A free program for windows
A full version game for windows, by VGstudio
Convert in all the major currencies
Efficient Matrix Calculations with Luckhan Matrix Calculator
Eufloria: A Free Productivity Tool for Windows
Powerful .NET decompiler
Evaluate Your Gaming Setup with Street Fighter IV Benchmark
Efficient FLV File Extraction Tool
Free alternative to Microsoft Office
Scientific Calculator: Mathematics at your fingertips
A free and useful PDF converter for Windows
Trial version of a basic converter
Free and Open Source Alternative to Macsyma or Maple