Toolflux Free browser tools for developers and freelancers

Work out final amount and interest for a lump sum or monthly savings plan - year-by-year chart, time-to-target answer, German tax and inflation view.

Hypotenuse, general triangles, sine and cosine on the unit circle, prism and pyramid volumes - with a Pythagoras proof you can watch.

Calculate area, circumference, volume and surface area for a circle, cylinder, cone or sphere - with one drawing that shows how the four shapes connect.

Six modes in one tool: days between dates, human-readable duration, add or subtract, age, countdown, and German working days.

Project a lump-sum investment or an ETF savings plan in one tool. See the real TER drag in Euros, plus optional German Vorabpauschale tax for an honest after-tax estimate.

Which barcode does your product need? The generator recommends EAN-13, ISBN-13, Code 128, or ITF-14, shows the check-digit derivation, and flags whether the code still scans once printed.