About PromptAnvil
The prompt toolkit built for image creators — generate structured prompts at scale, refine them with AI, generate images with 8 models, and build reusable configurations with logic rules, weighted descriptors & templates.
What We Do
PromptAnvil helps AI artists, concept artists, and image creators design prompts at scale — with intent. Whether you're generating portraits, sci-fi landscapes, or product variations, you get fine-grained control over structure, diversity, and AI-powered assistance at every step.
Why It Matters
Most prompt tools rely on randomness. PromptAnvil introduces structure: rule-based logic, weight distribution, AI-generated configurations, and a full refinement pipeline — enabling consistent, scalable generation for production use cases.
What PromptAnvil Is — and Isn't
Five seconds to know if it's for you.
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A reusable prompt template builder
Design your style once — generate from it forever.
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A batch generator
1 config → 100+ unique prompts per click, deterministically.
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A visual sd-dynamic-prompts
Same combinatorial power, no syntax, runs in your browser.
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Multi-model by design
Midjourney, FLUX, SDXL, DALL-E, ComfyUI — export to any.
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No install, no account required
Open a tab and start building. Sign in only to sync to cloud.
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A conversational AI assistant
No chat interface — you build structured templates, not have a back-and-forth. Quick Generate can write prompts too, but it's driven by your config, not open-ended input.
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A prompt marketplace
No browsing strangers' prompts. You build and own your library.
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An enterprise LLM platform
Not Langfuse, not PromptLayer. Built for image creators, not ML engineers.
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An image generator (primarily)
There's one built in, but the core value is the template engine.
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A Midjourney or SD replacement
It works alongside your existing tools — not instead of them.
How to Use PromptAnvil
Five steps to structured, high-quality prompt generation.
Select Categories
Choose the prompt categories you want — portraits, landscapes, characters, or anything custom.
Adjust Descriptors
Fine-tune traits like lighting, era, or emotion using weighted sliders.
Use Prompt Logic
Add conditional rules: "If cyberpunk, always add neon lights but never rustic."
Generate
Click Generate to produce your custom batch — from 1 to 100+ unique prompts instantly.
Refine, Export & Reuse
Polish with AI, export as TXT/JSON, save configs to the cloud for future use.
AI-Powered Features
Every AI feature is optional and runs on the Coal credit system. Non-AI features like batch generation, exports, and config creation are always free.
AI Config Generator
Describe what you want in plain English — AI builds a full configuration with categories, descriptors, templates & logic.
Quick Generate
Skip the setup entirely. Select categories, hit generate, and get AI-powered prompts in one shot.
AI Image Generator
6 state-of-the-art models (FLUX, Imagen 4, Recraft V3 & more) — generate images directly from your prompts.
Config Analyzer
AI reviews your configuration for balance, coverage gaps, and suggests improvements.
Smart Refinement
AI-powered refinement with 6 styles (Enhance, Artistic, Technical, Simplify, Shorten, FLUX) in strict or creative modes.
AI Rule & Entry Generator
Automatically generate logic rules and descriptor entries — AI understands your context.
Cloud Sync
Save configs, prompt history & favorites to the cloud via Supabase.
Coal Credits
Fair usage system — free tier included. AI features consume Coal, non-AI features are always free.
Export Anywhere
JSON, TXT, clipboard — use your prompts in Midjourney, Stable Diffusion, DALL-E, ComfyUI & more.
Blueprint System
Color-coded prompt breakdown showing exactly which descriptors were used. Click entries to create exclude rules.
RoadmapJourney
Our path to building the ultimate prompt engineering platform.
Foundation
Core prompt generation engine, templates & config analyzer
Quick Mode & Logic
Quick Mode for beginners, conditional rules & weighted exclusions
Refiner v2 & Accounts
AI refine pipeline with 6 styles, user auth & profile
Tag Linking & Supabase
Cross-key tag system, rating, persistent stats & full Supabase migration
Block Combo & Coal
Visual prompt breakdown, Packs page & Coal credit system
UI Overhaul & Image Gen
Complete redesign, Image Generator with 6 AI models & mobile UX
Prompt Pack Gallery
Community pack marketplace, publish from Studio & Pro plan launch
API & Config Versioning
REST API for prompt generation, batch refiner & version history
SEO & Comparison Pages
Gallery rename, /vs/ pages, changelog & search engine optimizations
Model-Specific Tuning
Targeted prompt optimization for Midjourney v6, SDXL, FLUX.1 & DALL-E 3
Browser Extension
One-click prompt injection for Discord, ComfyUI & SD WebUI
Workflow Automation
ComfyUI node integration, scheduled generation & webhook triggers
(The cat is working hard on the next update...)
Ready to start forging?
Jump in and start creating complex prompt workflows in seconds. No account required for batch generation.