YouTube thumbnail from your video
Pick the best frame of your video and save it at 16:9, under YouTube’s 2 MB limit, ready to upload as a custom thumbnail.
- Free
- No sign-up
- Runs in your browser
Your video
Runs in your browser. Your video is never uploaded.
YouTube thumbnail
How YouTube uses your cover
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.
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.
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
- Claude
- ChatGPT
- Codex
- Windsurf
- Gemini CLI
- VS Code