Video thumbnail grabber
Pick any frame of a video and save it as an image. Step frame by frame, let it find the sharpest frames, and crop them for YouTube, Reels or TikTok.
- Free
- No sign-up
- Runs in your browser
Your video
Runs in your browser. Your video is never uploaded.
Your thumbnail
Each network shows a cover its own way
The frame is drawn from your video at its own resolution, cropped to the shape you pick and never enlarged. Find the best frames skips black and blank moments and keeps the sharpest ones.

TikTok cover
TikTok takes a cover as a time in the video, so the cover is always one of its frames. Find the moment here, then pick the same time in TikTok, or set it in Foliwo, which sends it with the video.

YouTube thumbnail
A custom thumbnail is an image you upload in YouTube Studio, at 16:9. YouTube wants it at least 640 pixels wide and, from a phone, under 2 MB. A frame from your own video is the quickest one that matches what people get when they click. Custom thumbnails need a verified channel.

Instagram Reel cover
A Reel’s cover is one of its frames unless you upload an image. Reels play at 9:16, and your profile grid shows only the middle 3:4 of the cover, so keep faces and text in the centre. Foliwo sets the cover by its time when it publishes.

Pinterest video Pin cover
A video Pin shows its cover in the feed until it starts playing, at 9:16. Foliwo sets the frame you pick as the cover when it publishes the Pin.
Video cover and thumbnail sizes
The shape each network shows a video’s cover at, as Foliwo publishes it.
| Network | The cover is | Shape | File limit |
|---|---|---|---|
TikTok | A frame of the video, picked by its time | Video 9:16 | Nothing to upload |
YouTube | An image you upload (video thumbnail) | Video thumbnail 16:9, Short 9:16 | 2 MB, at least 640 px wide |
Instagram | A frame of the feed post or reel, picked by its time | Reel 9:16, Profile grid 3:4 | Nothing to upload |
Pinterest | A frame of the video pin, picked by its time | Video Pin 9:16 | Nothing to upload |
Questions about video thumbnails
Thumbnail grabbers for each network
Made by Foliwo, the social media scheduler that publishes your videos with the cover you pick.
Stop posting by hand.Start shipping content.
Connect your channels in minutes. Write in Foliwo or ask your AI agent, and let the queue publish.
$1 for your first month · Cancel any time
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