Thumbellina

Smart Thumbnail Generator

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How It Works

Thumbellina is a new kind of thumbnail maker, built by a creator who knows how much effort goes into every frame. It watches your footage, listens to your words, and finds the real emotional peaks through audio transcription, frame analysis, and visual scoring. Then it uses AI, carefully and contextually, to enhance what's already there, not to fabricate something new.

We aim to never create fake AI slop. Thumbellina was created to preserve your face, your frame, and your moment. If your video has no people, we design around text and context, not synthetic models.

In a world overflowing with AI slop, Thumbellina is built to be the opposite: a tool that amplifies human emotion instead of replacing it. It's the good kind of AI, the kind that still needs a human touch. I made it because I was tired of thumbnails that felt fake. Now, it helps creators make better ones without losing their authenticity.

Supported: MP4, MOV, WebM, AVI • Best results with 1080p or higher

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Max 250MB • MP4, MOV, WebM, AVI

Custom Thumbnail Text

0/30 charactersLanguage: EN
0/30 charactersLanguage: EN