Need a fresh still from a short instruction, or a photo restyled with one clear edit? The free ToolXoX Nano Banana AI tool switches between Text to Image and Image to Image so you can write a prompt, optionally add a reference file, pick an aspect ratio, Generate, and download without signing up.
When Nano Banana AI Fits
Use it when you want instruction-style results fast. Common jobs:
- New concept art from a written scene or product idea.
- Outfit or background swaps on a photo you already have.
- Object add or remove tests before a heavier edit pass.
- Character consistency checks across a few prompt variants.
Text to Image builds a new picture from your words. Image to Image starts from a JPEG, JPG, PNG or WEBP reference (up to 10MB) and edits or restyles it. NSFW prompts are not supported. Be specific in the instruction and Generate again with a small change if the first try misses.
What You Get on Nano Banana AI
On the tool page you choose Text to Image or Image to Image, write a prompt, upload a reference when you are editing, set Aspect Ratio (Auto plus common sizes such as 1:1, 16:9, 9:16, 3:2 and 4:3), complete the security check, click Generate, wait through the queue, then download. Free for normal use. It works on phone and computer.
Short, concrete instructions beat long wish lists. Name the subject, the change, and the framing. Vague prompts wander; tight ones land closer on the first pass.
How to Use Nano Banana AI
1. Decide whether you need a brand-new image or an edit of a photo you already shot.
2. Open the Nano Banana AI tool on ToolXoX on your phone or computer.
3. Switch to Text to Image or Image to Image. For edits, upload a JPEG, JPG, PNG or WEBP under 10MB.
4. Write a clear prompt, pick an Aspect Ratio, complete the security check, then click Generate.
5. Preview the result. If it is close but not right, change one detail in the prompt and Generate again.
6. Download the file you want to keep and name it so you can tell versions apart.
Prompt Habits That Help
Say what should change and what should stay. For Image to Image, mention the outfit, background or object you want moved. For Text to Image, set subject, lighting and camera distance in one short paragraph.
- Good: "front portrait, red jacket, soft window light, plain grey wall".
- Weak: "make it better and more cinematic somehow".
If the first result drifts, keep the subject line and only swap the part that failed. Small edits beat rewriting the whole prompt from scratch.
Source Tips
- Use a sharp reference when you edit; soft phone zooms confuse the model.
- Stay under 10MB and stick to JPEG, JPG, PNG or WEBP.
- Match Aspect Ratio to the final layout so you crop less later.
A clean product photo plus one clear instruction usually beats a busy collage with three edits asked at once.
Conclusion
Pick Text to Image for a new still or Image to Image when a photo needs a directed change. Write a tight prompt, set the Aspect Ratio, Generate, and nudge one detail if the first preview misses. Download the version that matches the job and move on.
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