Free Nano Banana prompt generator
Write naturally and let the generator transform your request into Nano Banana-ready instructions that read like a clear edit request. You get a detailed command with what to adjust, what to preserve, and the final visual target.
Keep the same room geometry and furniture positions, but increase daylight exposure and shift to a warmer palette with subtle oak details. Replace the curtains with sheer linen, add a cozy reading nook in the corner, and soften the wall texture so shadows look natural. Maintain depth and perspective from the existing camera angle.
This is the free version
Works where you write
PromptDC rewrites selected text in any app, every browser, your IDE and your terminal on Mac and Windows.
One keyboard shortcut
Select text, press Cmd+Shift+E or Ctrl+Shift+E, review the result, then Replace or Copy. It never presses Enter for you.
Your profiles, your models
Pick a default profile per app, or bring your own API key on the Lifetime plan.
Free here: 3 enhancements. In the app: from $9/mo, or Lifetime from $69 with your own API key.
Nano Banana performs well with prompt flow that sounds like directing a shot: who is in frame, what is changing, and what must remain stable. This generator structures your input into clear edit-style instructions, so changes are explicit and less ambiguous. Use it when you want quick direction shifts, subject swaps, style pivots, or detail additions without rebuilding the whole concept from scratch.
Common questions
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Enhance any text you select in any app on desktop, in browsers, in your editor or terminals.
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