Privacy Policy

The short version

YDM talks to YouTube and its own release feed — nothing else. There is no telemetry, no silent auto-updates, no account system, no crash-reporting service, and no third-party server anywhere in the architecture. Everything YDM knows about you lives on your own machine.

Data stored on your device

YDM keeps its working files in %APPDATA%\YDM:

• config.json — your settings (save path, quality, clipboard options, etc.)
• history.json — your last 500 downloads, kept entirely for the in-app History view
• session.json / session_<job>.json — resumable download sessions
• queue.json — the download queue
• instance.json — the local port and a per-run security token (never transmitted)
• ydm.log — diagnostic logs, with signed/credentialed URL parameters automatically redacted

All writes are atomic, and deleting the data folder removes everything. The uninstaller removes its own files and deliberately keeps your downloaded media and unfinished .part files.

Network behavior

• The app's local API binds to 127.0.0.1 only — nothing on your network can reach it.
• Host-header validation blocks DNS-rebinding attacks; state-changing requests must be same-origin.
• Outbound connections go only to YouTube (made on your behalf when you queue a download) and to this site's release feed (the background update check, which can be turned off in Settings → Software update).

This website

The site's own files are static: it runs no analytics and embeds no trackers, fonts, or scripts of ours — every first-party asset is served from this site itself, and the YDM application never sends your data to us.

This website and advertising

To keep the tool and its documentation free, this website displays advertising served by Google AdSense. This is entirely separate from the YDM desktop application, which contains no ads and no tracking. A few things you should know about the ads on these pages:

• Google and its partners may use cookies to serve ads based on your prior visits to this or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit.
• You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of a third-party vendor's use of cookies for personalized advertising at aboutads.info/choices.
• You can review Google's advertising principles and its Privacy & Terms policy for full details.
• Visitors from the European Economic Area, the UK, or Switzerland see a Google consent message before any ad cookie is set, and can choose or withdraw consent there.

We keep ad placements away from download buttons and never use deceptive ad layouts. If an ad ever appears to imitate a download button, please tell us and we will fix it right away.

Contact

Questions about privacy can be directed to QANEN through the contact channel listed on qanen.site.