Free local prompt tool

Nano Banana Prompt Generator

Build a clearer Nano Banana prompt by separating the subject, action, scene, visual style, lighting, camera, text handling and constraints. The generator turns those ingredients into a copyable draft in your browser, without a model API, account or prompt upload.

Build the prompt

Fill the fields that matter for your image. Empty fields are left out of the result.

Local only

SubjectWhat must appear, and what makes it specific?OperationStart with an action such as “Create a single image of”.ScenePlace the subject in a concrete setting with useful context.StyleDescribe the visual language, medium or material.LightingName a direction, quality, colour or time of day.CameraAdd lens, angle, framing or depth of field.TextSay what text to include, reserve, or avoid.ConstraintsProtect identity, count, silhouette, layout or exclusions.

No prompt leaves this browser.

Output

Nano Banana prompt

Structured draft

Create a single editorial product image of a handmade ceramic teapot with a cobalt-blue glaze. Scene: the teapot on a warm oak table beside a bright window. Style: quiet luxury product photography with tactile, realistic materials. Lighting: soft morning side light with gentle shadows and a warm highlight. Camera: 50mm lens, eye-level three-quarter view, medium close-up. Text handling: no visible text, labels or logos. Constraints: keep the full silhouette clear, preserve the curved handle, clean edges, no extra objects.

Edit the draft before using it in your image workflow.

This builder assembles your words. It does not call Nano Banana, inspect an image, or guarantee a particular result.

How to write a useful Nano Banana prompt

Start with a concrete subject rather than a broad adjective. Then describe the operation you want—such as creating one image, editing a reference, or placing an object in a new setting. A scene gives the subject a location and relationship to nearby objects. Style, lighting and camera details add observable direction without relying on vague praise words like “perfect” or “beautiful.”

Name the subject. Include identity, material, count and the detail that must remain recognisable.
Describe the view. Use scene, camera angle, lens, framing and light to guide composition.
Protect the result. Use text and constraints to reserve layout space, preserve a silhouette or exclude unwanted additions.

What this free prompt generator does

The Nano Banana prompt generator is a deterministic writing aid. It joins the words you provide into a structured prompt and keeps every field visible so you can revise the instruction before copying it. The examples are starting points for product photography, travel poster design and lifestyle portraits; replace them with the subject and reference context you actually own or have permission to use.

Nothing is sent to PicGens or to an image model. The tool does not generate an image, verify model-specific syntax, inspect a reference photo, promise identity preservation, or grant permission to use a person, logo or copyrighted work. Treat the output as a draft, test it in the Nano Banana version you use, and check the result for unwanted text, extra objects and inaccurate likeness before publishing.

Need reusable slots instead of a finished prompt? Try the Prompt Variable Analyzer to mark the parts that should change from one image brief to the next.

JavaScript is required for the interactive prompt builder. The guide above explains the same prompt structure, and the page remains available as a reference without the form controls.