
Thumbnail Oracle
Video Preview & A/B Testing
About
What's New in Thumbnail Oracle
1.7
May 3, 2026
Preview your YouTube thumbnails exactly how viewers see them — inside a realistic mobile feed. • Feed Preview — Upload your thumbnail and see it in a pixel-perfect YouTube feed mockup, surrounded by real competitor thumbnails • A/B Compare — Upload two thumbnails side-by-side and pick the winner before you publish • YouTube Search — Search YouTube and import real competitor thumbnails to benchmark against • Full Customization — Set channel name, view count, time ago, video duration, and save presets • Preview History — Every preview auto-saved with search, edit, and analytics • Share & Export — Export your feed mockup as a shareable image • Light & Dark Mode — Full support for light, dark, and system appearance • iPad & iPhone — Optimized layouts for both devices
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