PromptSpace Pro: Cloud-Synced Brutalist Prompt IDE & Gumroad SaaS Template

Hey Product Hunt! 👋 As developers and AI creators, we found ourselves constantly losing track of successful prompt iterations, copy-pasting templates into Notion, and worrying about our API keys leaking into third-party cloud services. That’s why we built PromptSpace Pro—a cloud-synced, high-contrast, brutalist Prompt IDE designed to give you absolute control over your AI workflows. Built on Next.js 14, the workspace is optimized for instant deployment to Vercel and fully synchronized with a secure, serverless Turso Cloud database. Your prompts, history, and analytics are cloud-accessible but remain entirely under your personal control. Core developer features: Git-style Prompt Diffing: See exactly what changed between saves and rollback versions in 1 click. Parallel Batch Testing (Bulk Runner): Run variables in a matrix table to compare outputs side-by-side. Token Cost Analytics: Beautiful interactive charts showing estimated API spending across OpenAI, Anthropic, and local Ollama models. The Solopreneur Bonus (SaaS-in-a-Box): We didn't want this to be just another tool. We built it as an autonomous digital asset. PromptSpace Pro comes pre-packaged with a gorgeous glassmorphic Gumroad License Activation Gate. You can deploy it to Vercel, connect Turso DB, apply your brand styles, and sell your own self-hosted workspace copies for $19 - $99! We are here today to answer your questions, hear your feedback, and learn how you manage your prompt libraries. What LLM provider do you use most for prompt engineering? Let’s discuss! 🚀