Video Prompt Builder — Free AI Prompt Generator

Turn a rough idea into a structured video prompt for Veo, Kling, Runway, Wan, Hailuo or Seedance. Free, no account needed.

Prompt Builder

You give it: A rough idea

You get back: A prompt in real cinematography language

Six cinematic style presets and a strength control, with the craft language it applies shown rather than hidden. Attach a reference still and it writes the shot from what it sees.

Free · no account. Part of design each shot — getting one shot right.

Use it with

• Shot Director — Three genuinely different ways to shoot it
• Frame Planner — Its opening and closing frames, and the move between
• Which Model? — Ranked models, real costs, and what's likely to break
• Prompt Library — Copy-ready prompts across genres and models

RevaultAI — a curated gallery for AI-generated film.