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Video Thumbnail Online Free — PrivaTools

TL;DR: Upload a video and pick a timestamp — download a single JPG screenshot from that moment.

Generate video thumbnails online for free — extract poster frames from MP4/MOV/WebM at any timestamp. Save as JPG or PNG. Perfect for video previews.

Video Thumbnail is part of PrivaTools — a free, open-source alternative to iLovePDF, Smallpdf, and Adobe. Server-side tools process your file in an isolated container and discard it immediately; many tools never upload at all and run entirely in your browser.

How to Use Video Thumbnail

  1. Upload a video — MP4 / MOV / MKV / WebM up to 500 MB.
  2. Choose timestamp — Time in seconds (e.g. 5.5 = 5.5 seconds in). Default is the middle of the video.
  3. Download the frame as PNG — FFmpeg extracts the exact frame at that timestamp.

Frequently Asked Questions

How do I find a good thumbnail moment?

Trial and error — try different timestamps to find a visually interesting frame. For automated 'best' selection, use Video to PDF and pick from the keyframe samples.

What resolution will the PNG be?

Same as the source video's resolution. Use Resize Crop Image after if you need a specific size for social media.

Can I extract multiple thumbnails at once?

Yes — Video to PDF extracts multiple keyframes and lays them out as PDF pages.

Last reviewed 2026-05-01 by the PrivaTools maintainers. Source code on (MIT-licensed, self-hostable).

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