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YanYu
YanYu

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[Tool] I built a free "Image to Prompt" converter optimized for Gemini / Nano Banana

Hey everyone,

I’ve been deep into testing Google’s Nano Banana (Gemini) models recently. One challenge I kept running into was analyzing reference images and figuring out the exact keywords to replicate that specific "Gemini style."

To help with this, I updated my site, BananaPrompts, with a new feature that I think you guys will find useful.

👉 The Tool: bananaprompts

I wanted to share exactly what you can find on the site and how it can help your workflow:

  1. The "Image-to-Prompt" Converter This is the main feature I’ve been working on. If you have a reference image and want to know "how do I generate something like this with Nano Banana?", you can upload it to the site. The tool analyzes the image and generates a text prompt specifically optimized for Gemini's architecture, saving you from trial and error.

  2. A Visual Prompt Gallery (The Library) I didn't want just a list of text. The site is organized visually, so you can browse by result. I've currently categorized hundreds of prompts into specific styles, including:

3D / C4D Style: For that clean, plastic, blind-box toy look.

Photorealistic: Calibrated for high-fidelity portrait and scenery generation.

Artistic & Abstract: Sketch, watercolor, and cyberpunk styles.

  1. Native Optimization Every prompt in the library has been tested to ensure it works now. You don't need to tweak the syntax; just click to copy, paste it into your generator, and it’s ready to go.

My Goal: I built this to be the "missing manual" for Nano Banana prompting. Whether you are looking for quick inspiration or need to reverse-engineer a specific image style, I hope this site saves you some time.

I’m constantly adding new categories, so I’d love to hear what styles you guys want to see next!

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