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Dev.to
Dev.to
7/7/2026
How to reduce image file size without losing quality (5 techniques)

How to reduce image file size without losing quality (5 techniques)

Short summary

Three techniques significantly reduce image file size without quality loss: convert to WebP/AVIF formats (which save 25-60% vs JPEG), strip EXIF metadata to remove 50-200KB per image while protecting privacy, and size images to actual display dimensions rather than uploading 10x-oversized originals. Use target file-size constraints rather than guessing quality sliders for precise compression. All techniques are available in free browser tools requiring no sign-up.

  • WebP/AVIF formats reduce file size 25-60% compared to JPEG with no visible quality loss
  • Strip EXIF metadata to remove 50-200KB per image while protecting privacy
  • Size images to actual display dimensions rather than uploading oversized originals

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