Hey Product Hunt! 👋 Excited to share Tools Hub with you today - a platform I built to solve a daily frustration: juggling multiple bookmarks for simple tasks like JSON formatting, text comparison, and financial calculations. The Story Behind It As a developer, I found myself constantly switching between different tool websites. Each had its own UI, some required signups, and most sent my data to their servers. I wanted something better - fast, private, and all in one place. What Makes Tools Hub Different 🔒 Privacy-First Design Everything processes in your browser. No data uploads, no tracking, no registration. Perfect for sensitive work with API keys, proprietary code, or financial data. ⚡ Lightning Fast Built as a static site with CDN optimization. Instant loading, works offline once cached, and handles everything client-side for maximum speed. 🌍 Truly Multi-Language Fully localized in 5 languages (English, Chinese, Japanese, German, Spanish) - not just translated, but independently optimized for each market. 🛠️ What's Inside - Developer tools: JSON formatter, text diff, markdown editor, Base64 encoder - Finance calculators: IRR, NPV, TVM, mortgage calculator - Plus some fun: 2048, Sudoku, puzzle games 100% free, forever. No premium tiers, no hidden costs. I'd love your feedback! Which tool do you use most? What should I add next? Happy to answer any questions! 🚀

Tools Hub

Developer & finance tools. 100% client-side. No registration

Developer & finance tools. 100% client-side. No registration