FileKeeps

Thumbnail Maker

Turn a video scene or an image into a YouTube thumbnail with a title — processed in your browser

On-Device

1. Choose a background (video or image)

2. Pick a style

Accent color

3. Add text

Font sizeText style
Text color
Text position

4. Preview & save

Choose a background first (a video scene or an image).

Capture the exact scene from your video or upload an image, and turn it into a YouTube thumbnail (1280×720). Pick a style preset, add a title and subtitle, then save as PNG/JPG. Everything is composed on a canvas in your browser.

What you can do

  • Capture a video scene or upload an image
  • 6 style presets (dark, light, cinematic, and more)
  • Title and subtitle with shadow, outline, or box text
  • 1280×720 PNG/JPG output

How to use

  1. 1Upload a video (or an image)
  2. 2For a video, capture the scene you want
  3. 3Pick a style, add text, and save

Supported formats · MP4 · MOV · WebM · PNG · JPG → PNG · JPG (1280×720)

Capture the exact scene you like from your video and turn it into a YouTube thumbnail. Play or scrub the video, pause on the moment you want, capture it as the background, then add a style preset and a title — saved as 1280×720 PNG/JPG. You can also upload an image as the background. All composition happens on a canvas in your browser, so files are never uploaded to a server.

How to use it

  1. 1Select or drag in a video or an image.
  2. 2For a video, pause on the scene you want and press 'Use this scene as background'.
  3. 3Pick a style preset, add your title and text style, then save as PNG or JPG.

When it comes in handy

For example, it's handy when you've just finished editing a video and want to grab its most striking moment as the thumbnail right away.

No separate design tool to learn — pick a preset, type a title, and it saves at YouTube's standard size (1280×720).

If the text is hard to read

On bright or busy backgrounds, switch the text style to Shadow, Outline, or Box. The 'Bold & Dark' preset lays a dark gradient along the bottom so white text stays readable on any background.

Frequently asked questions

Are the files uploaded to a server?+

No. Both the scene capture and the composition happen on a canvas in your browser, so files never leave your device.

What size is the output?+

1280×720, YouTube's standard. You can choose PNG or JPG.

Can I use an image instead of a video?+

Yes. Upload an image and it becomes the background right away.

Does it support non-Latin titles?+

Yes. Text is rendered with the site's Pretendard font, crisp for Korean and Latin alike.