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JSON Prompt Generator

Build a validated video prompt as JSON in a guided 5-step wizard. Pick a starting template, choose a model (Veo, Sora, Kling, Runway Gen-4, Luma Ray 3, or Hailuo), describe the scene, tune the cinematography with clickable chips, and copy a ready-to-paste JSON object. The schema and model limits are fully configurable, and a built-in linter checks any pasted JSON for you.

항상 무료 사용하기 쉬움 즉각적인 결과 비공개이며 안전합니다

사용법 JSON Prompt Generator

작동 원리 — 이 빌더는 결정론적입니다: 사용자가 입력한 필드를 바탕으로 프롬프트를 조합할 뿐, 영상을 렌더링하거나 생성하지는 않습니다. JSON을 비디오 모델 UI(Veo, Sora, Kling, Runway, Luma, Hailuo)나 프롬프트 기반 비디오 생성 도구로 복사하세요. 초안은 브라우저(localStorage)에 저장되며, 아무것도 업로드되지 않습니다.
동영상 프롬프트 만들기
모델 선택
  1. 1 시작
  2. 2 AI 모델
  3. 3 장면
  4. 4 스타일
  5. 5 리뷰

시작점을 하나 정하거나, 빈 화면에서 시작하여 자신만의 샷을 묘사해 보세요. 모든 내용은 나중에 수정할 수 있습니다.

동영상을 렌더링할 모델을 선택하세요. 아래의 제한 사항은 선택한 모델에 따라 달라집니다.

Who or what the camera is on. Concrete nouns beat abstractions.
What the subject is doing, with a clear arc the model can render.
Where the action happens - time, place, grounding details.
Spoken line, ambient bed, or SFX. Veo and Sora generate audio; other models ignore it.
선택하신 항목
JSON 프롬프트
미완성

JSON 유효성 검사
린트

JSON 프롬프트를 붙여넣으면 선택한 모델의 스키마를 기준으로 린팅이 수행됩니다.

스키마 · 2026-05
참고 문헌
유형 필수 옵션 / 참고 사항
subject string * Who or what the camera is on. Concrete nouns beat abstractions.
action string * What the subject is doing, with a clear arc the model can render.
environment string 선택 사항 Where the action happens - time, place, grounding details.
camera enum 선택 사항 locked-off static shot slow push-in slow pull-back tracking shot slow pan slow tilt up dolly in dolly zoom vertigo effect smooth orbit around the subject crane up handheld shot aerial drone shot whip pan slow zoom in rack focus
lens enum 선택 사항 portrait 85mm lens 50mm lens 35mm lens 24mm wide-angle lens 100mm macro lens anamorphic lens 200mm telephoto lens
lighting enum 선택 사항 golden hour light soft diffused light hard sunlight rim light low-key lighting high-key lighting volumetric light neon light warm practical light overcast light backlit silhouette
grade enum 선택 사항 teal and orange grade cinematic grade natural grade desaturated grade warm grade cool grade noir black and white grade vintage film grade pastel grade
mood enum 선택 사항 cinematic energetic serene dreamy moody playful epic intimate nostalgic surreal
audio string 선택 사항 Spoken line, ambient bed, or SFX. Veo and Sora generate audio; other models ignore it.
duration number *
aspectRatio enum * 16:9 9:16 1:1 4:3 3:4 4:5 21:9
모델의 한계
모델 오디오 기간 화면비 참고
Kling AI 아니요 1–15s (5 / 10 / 15 seconds) 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 Kling 3.0: kinetic motion, strong physics, per-character lip-sync (Omni). Honors camera and motion; audio ignored.
Veo 1–8s (4, 6, or 8 seconds) 16:9, 9:16 Veo 3.1: native synchronized audio and lip-sync. Strongest prompt fidelity on the Google pipeline (Gemini / Vertex AI).
Sora 1–60s (up to 60 seconds) 16:9, 9:16, 1:1, 4:5 Sora 2: best-in-class prompt fidelity and native audio. Consumer app closed Apr 2026; API sunsets Sep 24, 2026.
Runway Gen-4 아니요 5–10s (5 or 10 seconds) 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 Gen-4 / Gen-4.5: character references and strong camera control. Audio added in post.
Luma Ray 3 아니요 5–10s (5 or 10 seconds) 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 Dream Machine Ray 3: HDR/EXR output, seamless loops, character references. No native audio.
Hailuo (MiniMax) 아니요 5–10s (5 or 10 seconds) 16:9, 9:16, 1:1 Fast and low-cost, excels at high-motion action. No native audio.
도구 링크
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내용 읽기

이 도구의 작동 방식과 사용 시기를 알아보세요.

How to Use This Tool

Follow the 5-step wizard and copy the generated JSON into Veo, Sora, Kling, Runway Gen-4, Luma Ray 3, Hailuo, or any prompt-to-video tool. The builder is deterministic: it assembles your inputs into JSON and does not render video.

1. Start

Pick a starting template (Cinematic, Product / ad, Action, or Dreamy) or start blank. Templates pre-fill the style choices so you can jump straight to describing your shot.

2. Select a model

Choose Veo, Sora, Kling, Runway Gen-4, Luma Ray 3, or Hailuo. The wizard adapts instantly: the duration range, allowed aspect ratios, and audio field visibility all follow the selected model. Veo and Sora generate native audio; the other models ignore the audio field but honor camera and motion.

3. Describe the scene

Fill the subject (who or what the camera is on) and the action (what it is doing, with a clear arc). Add an environment for time and place. These are the core of the prompt.

4. Style the shot

Tap chips to pick camera movement, lens, lighting, color grade, and mood, then set the duration. Every option value is validated against the schema and filtered to what the selected model supports.

5. Review and copy

The output updates live and only includes keys with values, in schema order: subject, action, environment, camera, lens, lighting, grade, mood, audio, duration, aspectRatio. Copy it to your clipboard or download it as a .json file.

Validating JSON

Paste any JSON prompt into the Validate JSON section and pick a model. The linter reports missing required keys, unknown keys, invalid enum values, out-of-range durations, and aspect ratios the selected model does not support.

Features

  • Guided 5-step wizard with a progress bar
  • Starting templates plus an example shot
  • Clickable chip selectors instead of plain dropdowns
  • Configurable schema, templates, and model limits from a single config file
  • Per-model duration clamping and aspect ratio filtering
  • Built-in JSON linter with per-model checks
  • Bundled schema reference table
  • Draft auto-save in the browser (localStorage)
  • Copy JSON, download .json, and Ctrl/Cmd+Enter to copy

자주 묻는 질문

사용자가 결과를 신뢰하기 전에 자주 묻는 질문에 대한 간결한 답변.

The output uses these keys in order: subject, action, environment, camera, lens, lighting, grade, mood, audio (Veo/Sora only), duration, and aspectRatio. Required keys are subject, action, duration, and aspectRatio.

No. It is a deterministic builder that arranges your inputs into JSON. Paste the output into a video model UI such as Veo, Sora, Kling, Runway, Luma, or Hailuo to generate the actual video.

Only Veo and Sora generate native audio, so the audio field is hidden for Kling, Runway Gen-4, Luma Ray 3, and Hailuo. The linter still warns if you paste JSON that includes an audio key while linting against those models.

Veo: 1–8s at 16:9 or 9:16. Sora: 1–60s at 16:9, 9:16, 1:1, or 4:5. Kling: 1–15s at six ratios. Runway Gen-4 and Luma Ray 3: 5–10s at six ratios. Hailuo: 5–10s at 16:9, 9:16, or 1:1. The schema table shows the exact limits.

No. Everything runs in your browser. Your draft is saved only in your browser's local storage and is never transmitted anywhere.

Yes. Models, templates, durations, aspect ratios, and enum options are defined in config/json-prompt-generator.php. The tool reads everything from that single config file.

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