Haoyi Tools

Haoyi Tools is a privacy-first file processing toolkit that operates entirely in your browser, ensuring files never leave your device. It supports format conversion for images (JPG, PNG, WebP, GIF, BMP), audio (MP3, WAV, OGG, FLAC), and video (MP4, WebM, AVI, MOV), compresses images by up to 90%, offers custom ratio cropping, watermarking, and QR code generation. Built with React, TypeScript, and FFmpeg.wasm, it functions offline after the initial load without file uploads or tracking, making it ideal for users prioritizing privacy.