Thumb
Spark
AI Generator
Generate
thumbnails
that get clicked
Describe your video and get 4 AI-generated options in under 30 seconds.
1792 × 1024 · YouTube-optimized · 16:9
Video title
*
Description
(optional)
More context = better thumbnails. Describe the vibe, not just the topic.
⚡ Generate 4 Thumbnails
Generating thumbnails… this takes about 20–30 seconds
Your thumbnails
0 options