Your prompts. One library. Across every AI assistant. Open Prompt Manager is a free, open-source Chrome extension for saving, organizing, and instantly reusing your best AI prompts. Instead of keeping prompts scattered across notes, documents, and old conversations, build one searchable prompt library and use it directly on any website. ⚡ Use your prompts anywhere Open your prompt library from Chrome’s side panel or directly inside supported AI websites, find the prompt you need, and insert it into the chat in one click. Open Prompt Manager includes built-in support for 18 AI services. Need another site? Custom website support lets you add your own. 🗂 Build a real prompt library - Save, edit, reorder and delete prompts - Organize prompts with tags - Search and filter your library instantly - Save selected text as a new prompt from the right-click menu - Copy prompts to your clipboard for use anywhere - Import and export your complete library as JSON 🔧 Create reusable prompts with variables Turn one prompt into a reusable template with dynamic variables. Open Prompt Manager asks for the values when you use the prompt, so you can reuse powerful templates without rewriting them every time. 🌍 Discover prompts from the community Browse the Open Prompt Database to discover useful community-created prompts and add them directly to your own library. Found something worth sharing? You can also publish one of your prompts to the community. 🎛 Works the way you work Choose how you want to access your library: - Chrome side panel - In-page prompt panel - Floating button - Hot corner - Custom keyboard shortcut Light and dark themes are supported, and you can control exactly which websites the extension is allowed to access. 🔒 Private by default Your prompt library is stored locally in your browser. - No analytics - No tracking - No hidden subscription - Website permissions are optional and under your control - Your prompts are not uploaded unless you explicitly choose to share one with the Open Prompt Database 💡 Perfect for Prompt engineering, coding, research, writing, marketing, customer support, studying, AI benchmarking — or anyone who regularly finds themselves typing the same instructions into an AI assistant. Save a good prompt once. Use it everywhere. Open Prompt Manager is completely free and open source. GitHub: https://github.com/jonathanbertholet/promptmanager