Privacy
Reviewed June 13, 2026
Your video files stay on your device
VidSlim runs FFmpeg WebAssembly in your browser. Selected videos, intermediate files and generated downloads are processed in browser memory and are not uploaded to VidSlim servers.
Website analytics
The site uses Vercel Web Analytics for aggregated traffic statistics such as page, route, referrer, country, browser, device type and operating system. Vercel states that Web Analytics does not use third-party cookies and does not collect identifiers that track visitors across websites. Video contents and selected file names are not sent through this analytics integration.
Vercel Web Analytics privacy documentationSession analytics
The site may use Microsoft Clarity to understand anonymous interaction patterns such as page visits, clicks, scrolling, browser and device information, heatmaps and reconstructed session recordings. VidSlim sends a denied analytics-storage consent signal by default, so the integration operates without Clarity cookies. Selected video file names are explicitly masked, and video contents are never provided to Clarity.
Microsoft Clarity privacy disclosure guidanceLocal browser data
VidSlim does not require an account and does not intentionally store your videos in cookies or persistent browser storage. Temporary in-memory data is released when processing finishes, is cancelled, or the page is closed.