built 140+ free browser tools in Next.js — full list inside

Hey dev community 👋 I've been building a collection of free online tools for developers and businesses over the past few months. Everything runs 100% in the browser — no server uploads, no signup, no tracking. Here's what's live right now: 🖼️ Image Tools Image Compressor (reduces PNG/JPG up to 80%) Image Resizer (exact px or percentage) Background Remover (AI-powered) Image Format Converter (JPG ↔ PNG ↔ WebP ↔ AVIF) 📄 PDF Tools Merge PDF, Split PDF, Compress PDF PDF to JPG, Word to PDF 💻 Developer Tools JSON Formatter & Validator CSS Minifier, JS Minifier, HTML Formatter Regex Tester, Color Picker, URL Encoder UUID Generator, JWT Decoder, Unix Timestamp Converter 🔐 Security Tools Password Generator (client-side only) Hash Generator (MD5, SHA-256, SHA-512) Base64 Encoder/Decoder 🧮 Calculators Age Calculator, BMI, Currency Converter (live rates) Loan EMI Calculator, Mortgage Calculator Percentage, Tip, Unit Converter 🤖 AI Tools Grammar Checker, Text Summarizer AI Blog Writer, Ad Copy Gen