Hey Product Hunt! 👋 I'm excited to launch ExperToolBox — a free collection of 45+ online tools built entirely in vanilla JavaScript. No frameworks, no backend, no accounts required. The core idea: every tool should work instantly, privately, and for free. 🖼️ IMAGE TOOLS - Remove Background — AI-powered, runs in-browser via WebGPU - Image Compressor — drag, compress, download. Zero uploads. - Image Converter — WebP, JPG, PNG, BMP batch conversion - Image Resizer — presets for social media, custom dimensions - Color Palette Extractor — dominant colors as HEX/RGB/HSL - Favicon Generator — from image or emoji, 4 sizes 🔑 GENERATORS - Password Generator — crypto.getRandomValues(), not Math.random() - QR Code Generator — URL, WiFi, email, phone types - UUID Generator — bulk generate up to 100, 5 formats - Random Picker — spin wheel with draw history - Secret Message — self-destructing encrypted messages 💱 CALCULATORS - Currency Converter — 27 major currencies - Mortgage Calculator — full amortization table + pie chart - BMI Calculator — metric & imperial, WHO scale - Timezone Converter — live clocks, DST-aware, 30 cities - Tip Calculator — bill splitter with presets 🔄 CONVERTERS - JSON to CSV — table preview, auto-detect structure - Base64 Encoder — standard + URL-safe variant - Markdown to HTML — 3-panel live editor - Color Converter — HEX, RGB, HSL, CMYK + palette generator - PNG to PDF — merge multiple images, reorderable pages - PDF to Image — powered by PDF.js, 1×–3× quality ✍️ TEXT TOOLS (20+) - Regex Tester — live highlighting, capture groups, cheatsheet - Find & Replace — with full regex and whole-word support - Text Diff — auto-compare, color-coded line by line - Case Converter — 9 formats including camelCase, snake_case - Sort Lines — 7 modes, case-insensitive, dedup option - Word Counter — real-time + keyword frequency + goal tracker - Remove Duplicates, Extra Spaces, Empty Lines, Accents... - Column Extractor, URL List Cleaner, Add Prefix/Suffix... Built with: Pure HTML + CSS + Vanilla JS Backend: None Data collection: None Price: Free forever 👉 https://expertoolbox.com

ExperToolBox — Free Online Tools

45+ free browser tools — no signup, no uploads, no limits

45+ free browser tools — no signup, no uploads, no limits