JSON Prompt Builder
Build a structured JSON prompt field by field — task type, style, subject, mood, environment — for tools that accept JSON input.
Watch it in action
Fill in the fields and get a clean, ready-to-use JSON prompt.
Step by step
Fill the fields
Set the task type, style preset, main subject, mood and environment — each maps to a JSON field.
Task TypeStyle PresetMain SubjectMoodEnvironment
Build the JSON
Click the gold Generate button. The overlay runs while your fields are assembled into valid JSON.
Copy the JSON
You get a clean, valid JSON prompt with each field populated — ready for any tool that accepts structured input.
Example output
A fantasy portrait, built as JSON.
{ "task": "portrait", "style": "high fantasy oil painting", "subject": "an elven ranger", "mood": "serene, heroic", "environment": "ancient moonlit forest", "lighting": "soft rim light", "quality": "8k, intricate detail" }
Pro tips
- Field-by-field control means repeatable, consistent structured prompts.
- Use a style preset to lock the look, then vary the subject.
- Copy the JSON and tweak any field by hand afterward.
- Complements NL → JSON: start in plain English, refine here.