PromptVault
A local prompt library with versioning, tag-based search, and a global hotkey that injects any prompt into the focused text field. Works across Claude, ChatGPT, Cursor, terminal, anywhere.
🎯The Problem
Prompt power-users hand-roll setups in Notion, Obsidian, or Apple Notes, then copy-paste prompts into ChatGPT or Claude all day. There is no shipping app focused purely on a fast, hotkey-driven local prompt library with proper versioning.
💡The Solution
A native menu-bar app with a Raycast-style picker: hit the hotkey, fuzzy-search your prompts, hit Enter to inject. Prompts live as Markdown files in a folder you control, with version history and optional template variables.
👥Target Users
Heavy LLM users (devs, writers, marketers, researchers), Cursor/Claude Code power-users, and anyone running 50+ prompts they reuse weekly.
📊Difficulty: 4/10 — Beginner-Friendly
This is a beginner-friendly micro-SaaS idea, ideal for first-time builders or developers looking for a manageable side project. Ideas at this difficulty level typically involve straightforward architectures, well-documented APIs, and clear user flows.
Estimated Timeline
A few weekends to a working MVP
Skills Needed
Basic web development, a simple database, and a payment integration
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