Master AI Prompt Engineering
Create, optimize, and manage prompts for ChatGPT, Claude, Midjourney, and Stable Diffusion
Professional-grade tools for prompt engineering. All data stays in your browser. Explore partners like CalcShapes to round out your creative toolkit.
Complete Prompt Engineering Toolkit
Smart Prompt Generator
Generate optimized prompts using AI. Describe your goal, select your model, and get production-ready prompts instantly.
Try Generator →Prompt Optimizer
Improve existing prompts with AI analysis. Get side-by-side comparisons, scoring, and actionable improvement suggestions.
Optimize Now →Midjourney Prompt Builder
Craft perfect Midjourney prompts with style presets, parameter sliders, and live preview. Master image generation.
Build Prompts →Stable Diffusion Composer
Build advanced SD prompts with positive/negative tags, weight controls, and template suggestions.
Compose Prompts →Image-to-Prompt Analyzer
Upload any image and get AI-generated prompts for recreating it. Works with Midjourney and Stable Diffusion.
Analyze Images →Curated Prompt Library
Browse hundreds of tested prompts organized by use case. Search, filter, and bookmark your favorites.
Explore Library →Interactive Learning Guide
Master prompt engineering with our comprehensive guide. Learn techniques, best practices, and advanced strategies.
Start Learning →My Prompts Manager
Save and organize your prompts with folders, tags, and search. All stored locally in your browser.
Manage Prompts →Why Choose PromptForge?
Privacy First
All your prompts stay in your browser. No accounts, no tracking, no data collection.
AI-Powered
Generate and optimize prompts using GPT-5-nano through Vercel AI Gateway.
Local Storage
IndexedDB stores your prompts locally. Export anytime, import anywhere.
Always Free
No subscriptions, no paywalls. All features available to everyone, forever.
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