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.

Kostenloser Bildkompressor — privat & ohne Upload

Klicken, ziehen oder einfügen Sie Bilder hierher

Maximum 20 images at a time

Erweiterte Einstellungen

Zielgröße Übliche Grenze wählen oder eigenen Wert eingeben

Eigenes Limit (KB, optional)

Ausgabeformat

Leer lassen für normale Komprimierung. 1 KB = 1000 Bytes. Mit Zielgröße folgt die JPEG/WebP-Qualität der gewählten Strategie. PNG bleibt transparent und kann das Ziel überschreiten.

Größe ändern

Plattform-Voreinstellung

Breite (px)

Höhe (px)

Stapelumbenennung

Kumulative ImgMin-Pro-Summen

25,700+

Verarbeitete Bilder

51 GB+

Gespeicherter Platz

Zeitbasierte Schätzung einschließlich der in diesem Browser abgeschlossenen Aufgaben; kein serverweiter Gesamtwert.

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