Factum Probatum
See what is in the export, before anyone reads it.
Drop a WhatsApp chat (the _chat.txt file or the export zip) or a Signal text export. You get message counts, gaps, edits, deletions, calls and hashes.
Nothing leaves this page. The file is read and analysed in your browser. No chat content is sent anywhere, there are no analytics scripts, and no model is used: the analysis follows fixed rules.
Choose the export
or drop it here. A .txt or .zip; media in a zip is counted, never opened.
Who took part
Check the names that took part
These are the names that head messages in the file. Names that head two or more lines are ticked. A name that heads only one line is listed unticked and is shown in the report as an unconfirmed participant: its line is read as a message and counted as one, but the name is not counted as a participant until you tick it. If you re-run with a name unticked, a line headed by it that does not fit the time order is kept as body text of the message before it. Add a name if one is missing.
Two questions only you can answer
Keep or pass on the report
The saved file is a record of your export and contains the file name, the participant names and short previews of the messages listed in it. Store and share it as you would the export itself.
Order the Factum package for this export
The package turns this export into an evidence table and ledgers, each number cited to a message line. Ordering opens our site's form. If you confirm, it carries only the items below, in the web address; no message text, names or file go with it.