There's a Prompt for that

Just Prompts

BetterPrompt

PromptStacks

Jrnylist

Prompt Genie

HeroGPT

Prompt Paradise

PUMPG Midjourney Prompt Generator

PUMPG (Powerusers MidJourney Prompt Generator) is a tool designed to streamline the creation of prompts for AI art generation, particularly with Midjourney. It simplifies the process by allowing users to start with basic elements and gradually add more detail, including mood, lighting, and objects, to refine their prompts. Additionally, it offers advanced settings for more control over the final output, such as image references for style or character consistency, and tips for optimizing prompt effectiveness, like the use of weights and separation symbols.

Trickle AI: Prompts Warehouse

Promptitude.io

"Promptitude empowers SaaS and mobile app developers to create, test, manage, and improve GPT prompts seamlessly with one simple API call, regardless of the provider.\n\n**"