Calculation of a cost of ton-kilometer

The calculators encode string to base64 string and decode back to original string. Special characters (+/) , generally produced by base64 algorithm, can be replaced by the data provided in additional parameter.

Calculator that allows you to filter the initial list with the specified multiple filters

This calculator matches lines in text using regular expression. It outputs line numbers and lines, which were matched and which were not matched, separating them.

This online calculator filters lines of text by removing designated lines or, you can say, leaving only designated lines

This online calculator can help you solve the problems on work done by the current and electric power. It can calculate current, voltage, resistance, work, power and time depending on what variables are known and what are unknown

This online calculator can perform simple image manipulation tasks, like rotation and flipping/mirroring

This online calculator converts color image to grayscale image using the luminosity method

This online calculator converts color images to black and white images. Two options are possible: luminosity threshold or Floyd–Steinberg dithering.

This online calculator allows you to process the image with the selected box filter, or use your own box filter.

This online calculator can process the loaded image using one of the several morphological operators

This online calculator applies median filter to an image

This online calculator applies a watercolor effect on the loaded image

This online tool remove non-standard elements from SVG files created with the Inkscape program

This calculator removes tab symbols and new line symbols from the text.