Free image converter, 100% private. Convert images between JPEG, PNG, WebP and AVIF directly in your browser. No uploads, no servers, completely private.
- Next.js 15 - React framework with App Router
- Tailwind CSS v4 - Utility-first CSS
- TypeScript - Type safety
- Lucide React - Icons
- next-themes - Dark mode support
pnpm install
pnpm devOpen http://localhost:3000 in your browser.
- 🖼️ Drag & drop or click to upload images
- 🔄 Convert between JPEG, PNG, WebP, and AVIF
- 🎚️ Adjustable quality for lossy formats
- 📊 File size comparison with savings percentage
- 🌙 Dark/light theme
- 🌐 English/Chinese i18n
- 🔒 100% client-side processing - images never leave your browser
pnpm dev # Start development server
pnpm build # Production build
pnpm start # Start production server
pnpm lint # Run ESLintMIT