I built a visual prompt builder for AI images/videos so you don’t have to write complex prompts that lets you control camera, lens, lighting, and style for AI based on AI models (It's 100% Unlimited Free)
A developer's 4-year frustration with messy text prompts led to a free, visual composition tool.
A developer, frustrated after four years of crafting verbose, repetitive prompts for AI image and video generation, has launched a visual solution. The tool, named PromptGPT and hosted on Vosu.ai, directly addresses the common workflow where prompts become "a huge messy wall of text" containing repeated technical parameters for cameras, lenses, lighting, and style. Instead of manual typing, users now compose prompts through a visual interface with dropdowns and controls for specific elements like ARRI Alexa camera models, 35mm lenses, f1.4 apertures, and cinematic lighting setups.
The system is built on the insight that most prompts follow a reusable structure: subject, camera, lighting, style, and constraints. PromptGPT allows users to select these components visually, automatically generating the structured text prompt required by models like Stable Diffusion or Midjourney. Key features include the ability to save custom styles and camera setups for reuse, control over camera motion and angles, and management of technical photography details like focal length and depth of field. The creator is currently offering it as a 100% unlimited free tool, actively seeking feedback from the community to refine the platform.
- Replaces manual text prompts with a visual control panel for camera, lens, lighting, and style parameters.
- Automatically generates structured prompts from visual choices, saving user-defined presets for future use.
- Built from 4 years of hands-on prompt engineering experience, currently offered as a completely free tool.
Why It Matters
Democratizes high-quality AI media creation by simplifying the complex prompt engineering barrier for professionals and hobbyists.