Video Inspector & Frame Grabber — Free Online Tool
Upload a video you own and instantly see its resolution, duration, file size and best platform use — then capture three still frames for thumbnails and covers. Everything runs in your browser; your file never leaves your device.
My Video Inspector & Frame Grabber
Upload a video you own. See resolution, duration and size, and save still frames for thumbnails.
- File name
- —
- Duration
- —
- Resolution
- —
- Aspect ratio
- —
- File size
- —
- Best use
- —
How to use it
- Choose or drop your MP4, WebM or MOV file into the box above.
- Read the duration, resolution, aspect ratio and best-use line.
- Tap “Capture 3 frames” and save the best frame as your thumbnail.
Frequently asked questions
Is my video uploaded anywhere?
No. The file is read locally by your browser. Closing the tab deletes everything — nothing is sent to a server.
Which frame makes the best thumbnail?
Usually the 50% frame — mid-action faces and clear subjects outperform opening titles. Add bold text on top in your editor.
Which video formats work?
MP4, WebM and MOV work in most modern browsers. If a format will not play, convert it first with a free editor.
Can I use this for other people's videos?
No — only for videos you own or have permission to use. This tool never downloads videos from Facebook, YouTube or Instagram.
Related tools
More free tools from ToolsOwl — all browser-only, all safe.
This tool never downloads other people's Facebook, TikTok or Instagram videos. It works only on files and text you provide. See our official download-your-own-video guide.