Sends your photo to Google · with your key · not ours
Edit a Photo with a Prompt
Describe the change. Google's Nano Banana model returns a draft. You hold the key, so there is no account here, no credits, and nothing for us to meter.
This is the one tool on the site that does not run on your device, because a model that invents a new scene cannot fit in a browser. So it is labelled as exactly what it is: your browser sends the photo and the prompt straight to Google using an API key you create for free, and the line below counts the bytes so you can see it happen.
No signup hereKey stays in your browserNever passes through ThumbCrafted
1. Your Google AI Studio key
Create one free at aistudio.google.com/app/apikey. It is sent only to generativelanguage.googleapis.com, in the request header, from your browser. "Remember" keeps it in this browser's local storage and nowhere else; untick it on a shared computer.
2. Photo (optional) and prompt
Drop, paste or click to add a photo to edit. Leave it out to generate from the prompt alone.
What pressing the button does: your browser sends the photo (if any), the prompt and your key to Google's generativelanguage.googleapis.com. Google's usage policy and free-tier limits apply to your key. Nothing is sent to, stored by, or visible to ThumbCrafted. The result is a draft; review it before you use it.
Your photo
Draft from Google
Why this page asks for your key instead of selling credits
Every "AI photo editor" that edits by prompt is a front end over the same few hosted models: Google's Nano Banana, OpenAI's GPT Image, ByteDance's Seedream. The site uploads your photo to its server, forwards it to the model vendor, and charges you credits for the round trip. The model vendor already offers the same call directly, and Google's comes with a free tier. So this page cuts out the middle: you create a key in Google AI Studio, paste it here, and your browser talks to Google. We never see the photo, the prompt, the key, or the result, and there is nothing to charge you for.
What it is honest about
This is the one tool on ThumbCrafted that sends your image somewhere, and it says so in the badge above the fold, in the disclosure beside the button, and in the byte counter that runs while it works. Everything else on the on-device AI tools page runs in your browser and counts zero. Keeping the two clearly apart is the whole point; a tool that blurs that line is asking you to trust a word.
What to expect from the draft
The model generates a new picture guided by your photo and your prompt. It is very good at scenes and lighting, and unreliable at exact preservation: a logo may be redrawn, small text may change, a face may drift. Google calls it an edit; it is closer to a well-briefed repaint. Ask for what you want kept ("keep the product exactly as it is") and check the result at full size. If you only need a background swapped behind the real pixels, the background remover does that on your device without inventing anything.
Common questions
Is this free?
ThumbCrafted charges nothing and has no account. Google's API key has a free tier with daily limits set by Google; beyond it, Google bills your account at its published rates. The page never adds a margin because the request never touches us.
Where does my API key go?
Into the request header of a call from your browser to generativelanguage.googleapis.com, and, if you tick "Remember", into this browser's local storage. It is never sent to ThumbCrafted. You can revoke it at any time in Google AI Studio, and you should restrict it to the Gemini API there.
Does my photo get uploaded?
Yes, to Google, and only to Google. That is what this tool is, and the byte counter under the heading shows it happening. It is the opposite of the rest of the site, which is why it is kept on its own page and labelled in amber rather than green.
Why did I get an error about the model name?
Google renames image models as it releases new ones. The dropdown lists the current ids; if Google reports that one is not available to your key or region, pick another. The error text shown is Google's own, unedited, so what you read is what happened.
Can I keep editing the same picture?
Yes. "Use this draft as the next photo" drops the result into the photo slot so your next prompt builds on it. Download anything you want to keep; nothing is stored anywhere when you leave.
Continue crafting
Keep going without re-uploading — your image carries over to the next tool automatically.