🍌 Nano Banana Aspect Ratio Changing Prompt Generator

Nano Banana Aspect Ratio Change Prompt Generator

The Nano Banana Aspect Ratio Changing Prompt Generator is a simple yet powerful online tool designed to help you create professional AI prompts for image resizing and background extension.

It allows you to generate clear, detailed instructions for Nano Banana, Google AI Studio, and other AI image tools that support prompt-based editing.

Most AI tools struggle to resize or extend an image naturally without cropping or stretching the main subject. This generator solves that problem by producing a ready-to-use prompt that tells the AI exactly how to expand your image background smoothly while keeping the subject untouched and realistic.

What This Tool Does

This tool makes it easy to:

Change the aspect ratio of any image (e.g., 16:9, 9:16, 1:1, or custom sizes).

Create transparent canvases for AI tools like Nano Banana and Google AI Studio.

Generate smart AI prompts that ensure smooth background blending and seamless photo expansion.

Avoid distortion or cropping, keeping your subject exactly as it is.

Whether you’re a designer, content creator, photographer, or marketer, this tool helps you create perfectly sized visuals for social media, product listings, thumbnails, or any digital platform — without using complicated design software.

Why You’ll Love This Tool

Free and Easy to Use: No registration, no ads, no complex setup.

Photorealistic Results: Backgrounds expand naturally, matching your original lighting, texture, and color.

Perfect for Any Ratio: Works with presets like 16:9, 1:1, and 9:16 or your own pixel dimensions.

Time-Saving: Generates detailed AI prompts instantly.

Universal Compatibility: Works seamlessly with Nano Banana, Google AI Studio, DALL·E, Midjourney, and Stable Diffusion.

How It Helps You Create Better Images

When you use this tool, you get:

A ready-made AI prompt that instructs your chosen AI tool to resize the canvas intelligently.

A transparent image template that acts as your second input for Nano Banana.

A faster workflow, because you don’t have to guess what to write in your prompt.

Together, these features ensure your images are expanded naturally — with smooth edges, realistic lighting, and no visible seams.

How to Use the Nano Banana Aspect Ratio Changing Prompt Generator

Changing the aspect ratio of an image can be tricky — especially when you want to keep your subject exactly the same while expanding the background naturally.

That’s where the Nano Banana Aspect Ratio Changing Prompt Generator makes everything simple.

Follow these quick steps to use the tool correctly:

Step 1 – Choose Your Image Size or Ratio

Start by selecting the aspect ratio that fits your image goal.

You can choose a preset ratio like 16:9, 9:16, 1:1, or enter your own custom width and height in pixels.

This tells the tool exactly what size or ratio you want for your final image.

Step 2 – Generate Your AI Prompt

Once you’ve set the ratio or custom size, click the “Generate” button.

The tool instantly creates a complete text prompt you can copy and use in Google AI Studio with Nano Banana.

This prompt is specially written to tell Nano Banana how to keep your subject untouched and extend the background perfectly.

Step 3 – Copy the Prompt

Copy Prompt by clicking copy button or by selecting text.

You’ll use this prompt later inside Google AI Studio.

The copied text includes all the necessary instructions — no editing or rewording needed.

Step 4 – Download or Copy the Transparent Image

After generating the prompt, download the transparent PNG or JPG from the tool.

This image acts as a blank canvas that helps Nano Banana understand your desired output size or ratio.

Step 5 – Use the Prompt in Google AI Studio/ Gemini (Nano Banana)

Now go to Google AI Studio / Gemini (Nano Banana) and select “Try Nano Banana.”

Upload your original photo as the first image, and upload the transparent image you downloaded from this tool as the second image.

Then, paste the copied prompt into the text box and run it.

Within seconds, Nano Banana will generate a new version of your photo — same subject, expanded background, perfect aspect ratio, and smooth natural blending.

💡 Pro Tip

You can use this trick for social media posts, thumbnails, website banners, or product photos.

It helps you fit your image into any required size without stretching, cropping, or losing quality.