Haoyi Tools is a privacy-first file processing toolkit. Convert images/audio/video formats, compress images up to 90%, crop with custom ratios, add watermarks, and generate QR codes. All processing happens locally in your browser - your files never leave your device.
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Maker
📌
👋 Hi Product Hunt! Excited to share Haoyi Tools with you!
🎯 What is Haoyi Tools?
A privacy-first file processing toolkit that runs 100% in your browser.
✨ Key Features:
🔄 Format Conversion
• Images: JPG, PNG, WebP, GIF, BMP
• Audio: MP3, WAV, OGG, FLAC
• Video: MP4, WebM, AVI, MOV
🖼️ Image Compression - Up to 90% size reduction
✂️ Image Cropping - Custom ratios, presets, rotate & flip
💧 Watermarking - Text or image watermarks
📱 QR Code Generator - Text, URLs, WiFi, email, vCards
🔒 Privacy First:
Unlike most online tools, we don't upload your files to servers.
• All processing in your browser
• No file uploads
• No tracking
• Works offline after initial load
🛠️ Built with:
• React + TypeScript
• FFmpeg.wasm for media processing
• 100% client-side architecture
💡 Perfect for:
• Designers protecting client work
• Photographers processing sensitive photos
• Anyone who values privacy
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