Shypd.aiThe largest open index of AI toolsPromptFill is a prompt engineering tool that helps users build, manage, and iterate complex prompts for AI painting. It offers a visual "fill-in-the-blank" interaction and supports platforms like GPT, Midjourney, and Nano Banana.
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About
PromptFill is a structured prompt generation tool specifically designed for AI painting applications such as GPT, Midjourney, and Nano Banana. It addresses the challenges of remembering, managing, and modifying complex prompts by providing a visual "fill-in-the-blank" interaction. Key features include variable autocomplete, inline variable syntax for real-time preview, and smart prompt splitting with automatic variable annotation. The tool also offers intelligent bank management with color-coded categories, a multi-template system for different use cases, and visual interaction with WYSIWYG editing and drag-and-drop functionality. PromptFill ensures data persistence with automatic saving to LocalStorage and supports HD social sharing for generated prompts. It is an open-source project, allowing users to self-host and customize their prompt management workflow.
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Open Source
Free
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