TanShilongMario/PromptFill

designed specifically for AI painting (GPT, Midjourney, Nano Banana, etc.). Help users quickly build, manage, and iterate complex prompts through a visual "fill-in-the-blank" interaction. 通过可视化的"填空"交互方式，帮助用户快速构建、管理和迭代复杂的 Prompt。

What it solves

Prompt Fill is a structured prompt generation tool designed to eliminate the difficulty of remembering, managing, and manually editing complex prompts for AI image and video generation (such as Midjourney, GPT, and Nano Banana).

How it works

It transforms prompts into a "fill-in-the-blank" interactive experience. Users can create templates using a {{variable}} syntax, which the engine automatically converts into interactive dropdown menus. It features a dynamic bank system for managing art tags and categories, allowing users to drag and drop variables into the editor or use autocomplete triggers (/ or {) to build prompts quickly.

Who it’s for

Digital artists, AI prompt engineers, and creators using AI painting tools who need to iterate on complex prompt structures without rewriting them from scratch.

Highlights

  • Structured Prompt Engine: Converts {{variable}} syntax into interactive forms for rapid iteration.
  • Intelligent Bank Management: Color-coded categories for art tags with bidirectional sync between the preview and the bank.
  • Variable Autocomplete: Dual-column panel for selecting variables and options via keyboard navigation.
  • Smarter Prompting: Includes a "Smart Split" feature to automatically annotate variables from existing prompts and an AI-powered prompt expansion tool.
  • Flexible Storage: Supports both browser LocalStorage/IndexedDB and local folder storage to prevent data loss.
  • Export Options: One-click copy of clean text or export as high-definition JPG long images for sharing.

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