Question 1

How are thumbnails generated?

Accepted Answer

Your video is scanned in the browser and the sharpest, best-lit frames are identified automatically. Three candidate thumbnails from well-spread moments are presented so you can pick your favourite.

Question 2

What image format and resolution are the thumbnails?

Accepted Answer

Thumbnails are exported as 1280×720 JPG files — the standard YouTube thumbnail size, which works well on all major video and social platforms.

Question 3

Can I add text to the thumbnail?

Accepted Answer

Yes — you can optionally type a title text and choose whether it appears at the top, centre, or bottom of the thumbnail before generating.

Question 4

Do I need to upload the full video to the server?

Accepted Answer

No — frames are extracted directly in your browser, so only the small JPEG images are sent to our server for text overlay processing. This keeps things fast regardless of your video size.

Question 5

Which video formats are supported?

Accepted Answer

Any video format your browser can play is supported, including MP4, MOV, WebM, and AVI. There is no file size limit for frame extraction.

Question 6

Is the Thumbnail Maker free to use?

Accepted Answer

Yes — you can try it for free as a guest. Creating a free account gives you 25 credits with no credit card required.

Thumbnail Maker

Frequently Asked Questions