Prompt Library is a macOS application that helps users save, organize, and instantly reuse their best AI prompts across various platforms like ChatGPT, Claude, and Gemini. It transforms scattered prompt management into a structured system where users can store proven instructions and access them quickly without interrupting their workflow.

The application allows users to save prompts, tag them for organization, and arrange them into collections based on different contexts such as marketing, product, engineering, support, and hiring. Users can search instantly using a global launcher shortcut, filter prompts in real-time as they type, and navigate quickly with keyboard controls. The system enables inserting prompts directly into any Mac application with one click, copying prompts without inserting them, and creating new prompts rapidly.

Prompt Library works through a global shortcut (⌘⌥P) that launches a searchable interface from anywhere on the Mac. Users can type what they need, surface the exact prompt without breaking their flow, and insert it into the current application they're working in. The application stores everything locally on the Mac with no accounts or cloud required, making it completely offline.

The benefits include having a single source of truth for all prompts instead of scattered snippets, instant recall of proven instructions instead of searching through old files, and higher output quality by reusing prompts that already worked rather than rewriting from scratch. Use cases include organizing marketing campaigns with campaign-ready prompts, creating role-specific persona prompts, and isolating debugging prompts for fast triage.

The target users are Mac users who work with AI tools like ChatGPT, Claude, and Gemini across various professional contexts including marketing, product development, engineering, support, and hiring. The application is model-agnostic and works with all AI tools, storing prompts locally without requiring internet connectivity.