PromptHub

## Inspiration We constantly reuse AI prompts — for writing, coding, brainstorming, or research. But there's no easy way to **save and revisit** them efficiently. Too often, they get lost in chats, documents, or tabs. We wanted a tool that makes **prompt recall as simple as saving a bookmark** — especially for power users who work with AI daily. ## What it does **PromptHub** is a minimal browser extension that lets users: - Quickly **save their favorite prompts** - **View and delete** saved prompts from a simple interface - Store prompts locally in the browser for persistent access It's designed as a lightweight utility for writers, developers, students, or anyone who interacts with AI tools regularly and wants a frictionless way to collect and reuse great prompts. ## How we built it We focused on building a fast and functional **MVP** using: - **HTML, CSS, and JavaScript** for the frontend - **TailwindCSS** for styling a clean and responsive interface - **Web Extension APIs** for compatibility with Chromium-based browsers - **LocalStorage** to persist prompts between sessions without needing a backend We used tools like **GPT-4** and **Claude** and other AI tools to help scaffold the UI and logic quickly, especially during the initial phase. ## Challenges we ran into - Learning how to structure and package a browser extension correctly - Handling browser security constraints (e.g., **Content Security Policy** ) when dynamically updating UI - Working without a backend, while still keeping the user experience smooth and useful - Managing scope creep and prioritizing the **core user flow** (saving and viewing prompts) ## Accomplishments that we're proud of - Built a working extension MVP from scratch in under 48 hours - Designed a clean UI with zero prior browser extension experience - Created something genuinely useful for our daily workflows - Successfully leveraged AI tools to accelerate development without losing control over code quality ## What we learned - The structure and permissions system of browser extensions - How to manage UI and logic in a somehow CSP-compliant way - How helpful AI coding assistants can be for debugging and rapid iteration - The power of building small but focused tools that solve real pain points ## What's next for PromptHub - Add support for folders, tags, and pinned prompts - Enable cloud sync using a backend like Supabase - Add prompt autocompletion and search - Make the UI themeable and keyboard-accessible - Publish to the Chrome Web Store - Explore a lightweight SaaS model or community prompt-sharing features