# Prompt Generator — Visual Prompt Workflow Builder
https://prompt-generator.usetool.org/

> Prompt Generator is a free visual prompt workflow builder for AI engineers and prompt engineers. Build prompt chains as block diagrams: create action blocks, connect them on a canvas, add loops and cycles, and auto-generate step-by-step AI instructions. Supports prompt chaining, cycle detection with loop notation, import/export, multi-project management. No signup, no ads, no server — everything runs in your browser with auto-save to localStorage.

## Features
- Visual drag-and-drop canvas for building prompt workflows
- Block library with CRUD: create, edit, delete, search blocks
- Drag-to-connect: wire blocks with bezier curve connections
- Cycle detection: automatic loop notation ("Cycled: continue step N until M is fully satisfied!")
- Topological sort: auto-generates numbered step-by-step prompt instructions
- Copy to clipboard: one-click copy of generated prompt
- Export as Markdown (.md) or plain text (.txt)
- Import from text or file (.txt, .md) — parses numbered prompts into blocks + connections
- Multi-project management: create, switch, rename, delete projects
- Auto-save to localStorage with 500ms debounce
- Zoom controls (Ctrl+wheel, 25%-200%) with persistence
- Dark mode support
- Mobile responsive with tab navigation (Library / Canvas / Output)
- Futuristic UI: animated flow connections, glow effects, glassmorphic controls

## Use Cases
- AI engineers building complex multi-step agent workflows
- Prompt engineers designing prompt chains with review loops
- Product managers planning AI automation pipelines
- Automation engineers creating repeatable instruction sequences
- Anyone who needs to turn a visual workflow into a copy-pasteable prompt

## Prompt Engineering
This tool is designed for prompt engineering workflows where tasks are decomposed into sequential steps with conditional loops. Common patterns: research → write → review → repeat until quality threshold. The visual canvas makes it easy to rearrange steps, add review cycles, and export the final prompt.

## Technical Details
- Stack: Astro 5 (SSG), Preact + Signals, Tailwind CSS v4
- Bundle: ~10KB gzipped JavaScript
- Zero network requests (no API calls, no tracking cookies)
- Data stored exclusively in browser localStorage
- Works offline after initial page load

## FAQ
- Q: Is it free? A: Yes, completely free. No signup, no ads, no limits.
- Q: Is my data safe? A: Yes. Everything runs in your browser. Nothing is sent to any server.
- Q: Can I create loops? A: Yes. Connect a later block back to an earlier one to create a cycle with automatic loop notation.
- Q: Does it work offline? A: Yes. After initial load, it works entirely offline.
- Q: What is prompt chaining? A: Breaking complex AI tasks into sequential steps where each step builds on the previous one.
- Q: How do I export? A: Click Export in the output panel, choose Markdown or plain text.
- Q: Can I import existing prompts? A: Yes. Click Import, paste numbered text or upload a .txt/.md file.