Privacy, without fine print.
Your PPTX files are processed inside your browser. DeckDelta does not upload their names, text, speaker notes, media, relationships or hashes.
Local processing
Opening, validating, extracting and comparing presentations happens on your device. Closing or reloading the page clears the current comparison.
Anonymous product events
The app sends one of only four fixed event names—sample loaded, comparison started, comparison completed or report downloaded—to a same-origin endpoint. The collector stores only that event name and a count. Events never contain filenames, slide text, notes, media names, hashes, paths, report contents, IP addresses, user-agent values or arbitrary properties.
Downloads
JSON, CSV and HTML reports are assembled locally and downloaded directly by your browser. They may contain presentation content because you asked DeckDelta to include it; handle exported reports according to your own confidentiality policy.
Limits
DeckDelta does not render slides pixel by pixel and does not support the legacy binary .ppt format. Use PowerPoint or another trusted renderer when visual fidelity must be reviewed.
Last updated: 9 August 2026.