I built a comprehensive web developer toolkit that I wish I had when starting out. Everything runs client-side, so your data never leaves the browser.

Tools included: - SVG to React/JSX converter with optimization and color extraction - Password generator with strength indicators - URL shortener - Base64 encoder/decoder for files and text - Color palette generator from images - JSON formatter with YAML conversion - CSS minifier with auto-prefixer - QR code generator for URLs, WiFi, email, etc.

Tech stack: Next.js 14, TypeScript, Tailwind CSS, shadcn/ui

Why I built this: I was tired of switching between different online tools, some with ads, some requiring registration. Wanted something fast, private, and free.

Key features: - No registration required - No ads - No data leaves your browser - Modern, responsive UI - SEO optimized for each tool

Built this over the past few months and learned a ton about performance optimization, UX design, and making tools that developers actually want to use.

Would love feedback from the HN community! What tools do you find most useful? Any features you'd like to see added?

Link: https://www.konverter-online.com