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About Totsum

A first look at your data, on your own machine. Ask in plain language, shortlist what matters, and hand the expert a report built to be verified. Built in Brussels by a small independent company.

This site sets no cookies, so there is no banner to click away. If you arrive from a campaign link, the campaign tag in that link is never stored in your browser. When you start a download, run the hardware check or complete an order, our server records a single line that holds the platform, the result of the check and that campaign tag, but no IP address, and it keeps that line for seven days. That is how we count which posts bring people here.

Like any AI, Totsum will sometimes get an answer wrong. Results are a first look, recorded for your qualified reviewer to judge, and Totsum never marks a result Valid.

Parts of this website were written with the help of an AI. A person reviewed every page before it was published.

Totsum Data Explorer is a desktop app for a first look at your CSV, Excel, JSON and Parquet files: you ask questions in plain language, an AI that runs locally on your machine answers with previews, and a follow-up report hands your shortlist to an expert for validation. Can work on a computer with no network connection; no account, no sync, no telemetry, no update check. One-time license, for Windows and macOS.