AI thumbnail maker for YouTube that generates scroll-stopping covers in seconds
Fix any diagram without redrawing it
Stage
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Founded
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Based in
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Pricing model
Freemium
Free
Pricing
Lite: $19/month (or $14/month annually) for 35 thumbnails per month. Starter (most popular): $39/month (or $29/month annually) for 75 thumbnails per month. Pro: $79/month (or $59/month annually) for 200 thumbnails per month. All plans include a 7-day free trial and full access to 50+ style packs. Fr
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Key features
50+ pre-made Style Packs for different niches
Copy the visual style of any YouTube video or channel
Custom persona from 1-3 photos for consistent facial appearance
Plain-language editing with natural text commands
2K resolution thumbnails in 16:9 and 9:16 formats
Automatic video analysis from YouTube links
Video caption support up to 40 characters
Faceless channel support
Free tools including YouTube thumbnail downloader and resizer
Version history to revert to earlier thumbnail versions
Upload images and reference patches to fix
Mark specific regions to replace and elements to use
Automatic style, lighting, and edge alignment
Support for multiple image types as patches
Preserve surrounding image context and physics
What makes it different
Generate finished thumbnails in 30 seconds without designer experience
No complex prompts required—choose from proven style packs instead
Automatically reads video content to suggest appropriate thumbnail designs
Consistent facial appearance across all thumbnails via persona feature
2K resolution exports optimized for YouTube that stay under 2MB file limit
Keep 90% of AI-generated content while fixing only what needs to be changed
Leave everything else untouched and preserve overall layout
Serves creators who need specific fixes, not full image regeneration
Thumbo
ReDiagram