Free tools that never see your files

Tools for documents, money, everyday tasks and science. They all run in your browser: nothing is uploaded, nothing about you is saved, and there is no sign-up.

663free tools, each with its own number

Money 3

Documents 7

Everyday 4

Science 649

Newest: Gillespie stochastic simulator, Gene network viewer, Pathway ODE builder, Volcano plot and PCA, Adduct and neutral loss calculator.

Tap the star next to a tool to add it to My tools. Then you can hide the rest and see only the tools you use.

Coming next: Time zone meeting planner, QR code generator, Sales tax, VAT and GST calculator, Data cleaner, Currency converter.