THE TOOLBOX

University & education tools

4 free tools for university & education. Run these tools in your browser without an account.

• Exact fraction calculatorCalculate with exact fractions, see the arithmetic steps and compare a mixed number with its decimal approximation.
• International Morse translatorTranslate letters and digits to Morse, or decode space-separated Morse.
• Photography depth-of-field simulatorSee how aperture, lens length, sensor size and focus distance change framing and depth of field.
• Audio spectrum explorerExplore frequencies in a local PCM WAV, one window at a time.

Filter this category by task, audience or timing →