What Lime Convert does
Paste text on the left, get the result on the right. That covers most of what happens here: changing case, sorting a list, pulling text out of a screenshot, turning a spreadsheet export into JSON, checking whether a barcode’s check digit adds up.
Every tool but Live Word Cloud runs in your browser. The text you paste is never uploaded, and there is no account to make. Live Word Cloud is the exception because the answers have to travel from the audience’s phones to your screen, so they pass through its server.