PromptForge is an AI workspace with 14 tools — writing, code, SEO, research, data formulas, and more — built around your own API key instead of a subscription. No middleman markup, keys encrypted in your browser. Code Helper actually runs JavaScript live and auto-fixes errors with 3 different strategies. Data Wizard executes generated formulas against real sample data. Business Strategist gives you a radar chart, competitor map, and live revenue calculator from one idea.