PromptBoost – Stop rewriting AI prompts

Hey Product Hunt 👋 I’m Sharvari (aka Sharu), one of the founders behind PromptBoost. This started as a very personal problem. At one point, I had 47 ChatGPT tabs open, trying to find a prompt I’d spent 30 minutes refining. I tried saving prompts in Notion, Apple Notes, Google Docs, even screenshots! and still kept losing good ones or rebuilding them from memory. The breaking point was realizing I’d rewritten the same prompt structure four times in a single week. That’s when my co-founder Rakesh and I decided to build something ourselves. Rakesh developed the app, and we focused on one core idea: prompts shouldn’t be disposable chat messages, they’re real work that deserve structure, history, and reuse. What we ended up building is a local-first desktop app where prompts live on your machine, not in the cloud. You bring your own models and API keys, refine prompts step by step, and reuse what works. Along the way, a few decisions became intentional: - No subscriptions - No prompt lock-in - No forced cloud workflows This is very much a learn-in-public launch, and I’ll be here all day. Happy to answer questions about the tech stack (Rust/Tauri), why we chose desktop + local-first, or how we think about prompt workflows. Also genuinely curious — how are you managing prompts today? What’s the most frustrating part? Thanks for checking it out 🙏