DeskDazzle is a free, offline-first workspace that runs entirely in your browser: documents, spreadsheets, slides, PDF tools, notes, tasks and a file manager, powered by a Rust → WebAssembly core. Nothing is uploaded, no account is required, and there is no application server behind it.
Signing in is optional. DeskDazzle offers Sign in with Google only so you can sync your own notes, tasks, layout and settings between your own devices; the name, email address and profile picture from that account are used to identify you and nothing else.
The app itself needs JavaScript to run. These pages describe what it does: