Privacy by design
Your swing belongs to you.
Swingalysis processes videos, drawings, comparisons, saved projects, screenshots, and annotated-video exports locally in your browser.
Swingalysis does not require a name, email, phone number, account, advertising identifier, contact list, or exact location. It has no upload, analysis, telemetry, advertising, or cloud-storage service.
What stays local
Selecting a video creates a browser object URL. Lightweight drawings, transforms, source filenames, and comparison settings can be saved in IndexedDB, but the video itself is never copied there. Playback, drawing, comparison, screenshots, and annotated-video downloads all work without an upload.
No server copy
- Selecting a video opens the local file through a browser object URL.
- Browser saves use IndexedDB for settings only, not video files.
- Project JSON backups exclude the original video files.
- Annotated-video files are rendered and downloaded in the browser.
Operational data
Swingalysis does not send product analytics or video metadata. A hosting provider may still process ordinary web-request information needed to deliver the static application, according to that provider's policy.
Your controls
Download a project JSON backup whenever you want a portable copy of drawings and settings. Reopen the original source videos when you return to a saved project. Remove local project settings by clearing this site’s browser storage. Because there is no account or cloud copy, Swingalysis cannot recover cleared projects or missing source videos.