How does ImgMin Pro compress images without losing quality?

ImgMin Pro uses the browser's native Canvas API to intelligently compress images. It analyzes each image and applies optimal compression settings based on your chosen mode (Balanced, Best Quality, or Smallest Size). All processing happens directly in your browser — no server upload required.

Is it safe to compress images with ImgMin Pro?

Yes, ImgMin Pro is completely safe. Unlike most online compression tools, ImgMin Pro processes images entirely on your device using client-side JavaScript. Your images never leave your browser and are never uploaded to any server.

What image formats does ImgMin Pro support?

ImgMin Pro supports JPG/JPEG, PNG, and WebP formats, and converts iPhone HEIC photos locally. You can compress up to 20 images at once using the batch upload feature, and download them individually or as a ZIP file.

Can I use ImgMin Pro offline?

Yes, ImgMin Pro is a Progressive Web App (PWA) that works offline. Since all image compression happens in your browser without server communication, you can compress images even without an internet connection after your first visit.

Compresor de imágenes gratis — privado y sin subidas

Haz clic, arrastra o pega imágenes aquí

Maximum 20 images at a time

Configuración avanzada

Tamaño objetivo Elige un límite habitual o introduce uno personalizado

Límite personalizado (KB, opcional)

Formato de salida

Déjalo vacío para compresión normal. 1 KB = 1000 bytes. Con un objetivo, la calidad JPEG/WebP sigue la estrategia elegida. PNG conserva la transparencia y puede superar el objetivo.

Cambiar tamaño

Preajuste de plataforma

Ancho (px)

Alto (px)

Renombrado en lote

Totales acumulados de ImgMin Pro

25,700+

Imágenes Procesadas

51 GB+

Espacio Ahorrado

Estimación basada en el tiempo que incluye las tareas completadas en este navegador; no es un total del servidor.

Your images never leave your browser — zero upload, verified.