Free, secure, and privacy-friendly online tool for preparing modern website images and fallbacks. The converter supports JPG/PNG/WebP to AVIF, JPG/PNG/AVIF to WebP, WebP/PDF back to JPG or PNG, adjustable quality settings, server-side processing, automatic file cleanup, and Cloudflare Turnstile protection. Project Scope: - JPG/PNG/WebP to AVIF conversion with adjustable quality settings - JPG/PNG/AVIF to WebP conversion for website fallbacks - WebP/PDF to JPG or PNG conversion - Picture fallback recommendations for production websites - Quality control with adjustable settings (40-100) - Privacy-first approach with automatic file deletion - Cloudflare Turnstile CAPTCHA protection - Server-side image processing - No installation required - works directly in browser Architecture: - Frontend: Next.js 16+ with React and TypeScript - Backend: PHP 8.0+ with GD and Imagick support where available - Security: Cloudflare Turnstile CAPTCHA (optional) - Image Processing: PHP GD library for server-side conversion Results: - Free, accessible image conversion tool available online - Practical AVIF/WebP fallback workflow for websites - Privacy-friendly with automatic file cleanup - Secure conversion operations with CAPTCHA protection - Fast server-side processing with PHP GD library - User-friendly interface with quality control
