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🗜️ Compression Guide4 min read · Updated Aug 2026

How to Compress Images up to 90% Without Quality Loss

High-resolution smartphone photos and camera RAW files often weigh between 5 MB and 20 MB. Compressing them efficiently reduces bandwidth consumption, speeds up website load times, and avoids email attachment bounce backs.

Need to shrink image file sizes fast?

Use our real-time smart compressor with before/after split slider.

Open Compressor Tool➔

The Secret: Modern Web Formats (WebP & AVIF)

Traditional JPEG compression discards high-frequency visual data to save space. Modern next-generation formats like WebP provide up to 30% smaller file sizes compared to JPEG at equivalent visual perception scores (SSIM).

How to Compress Using MyImgResizer:

  1. Open the Compress Image Tool.
  2. Upload your JPEG, PNG, or WebP files (up to 20 files for batch compression).
  3. Select WebP or JPG as your target format.
  4. Adjust the Quality slider between 75% and 85% (the sweet spot for human vision).
  5. Inspect the split-view slider to verify zero perceptible blur, then click Download or Download All (ZIP).