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PixMino

Compress an image to 500 KB

Keep a large, detailed photo under 500 KB. Most photos stay sharp at this size, even at high resolution.

  • No signup
  • Your images stay on your device
  • Free, no watermark
Mode

Drop an image here

or

Choosing several images switches to batch mode.

  • JPG
  • PNG
  • WebP
  • AVIF
  • HEIC
Up to 50 MB

How to compress an image to 500 KB

  1. 1

    Add the photo

    JPG, PNG, WebP, AVIF and HEIC are all accepted.

  2. 2

    Choose Best quality

    500 KB is already set. Best quality keeps fine detail where it fits.

  3. 3

    Optimize and download

    Check the result at full size with the slider and download.

How much detail 500 KB keeps

As a rough guide, 500 KB is enough for a JPG photo of about 2,300 to 3,200 pixels on its longest side at good quality. Many phone photos fit with only a moderate reduction in size, and screenshots usually fit at full size as JPG or WebP.

Common uses

  • Portfolio and gallery images that should stay crisp on large screens.
  • Listings and forms that allow up to 500 KB per photo.
  • Sharing a set of photos by email without hitting attachment limits.
  • Turning PNG screenshots into much lighter JPG or WebP files.

When the image is already small

If your image is already under 500 KB, there may be nothing to gain. PixMino tells you when the result is larger than the original, so you can keep the original instead.

Supported formats

PixMino opens five formats and saves four. HEIC photos from iPhones are saved as JPG or PNG.

JPG

Best for
Photos and images with soft gradients.
Transparency
Not supported.
Compression
Lossy, with adjustable quality.

PNG

Best for
Screenshots, logos and graphics with sharp edges or text.
Transparency
Supported.
Compression
Lossless. Can use fewer colours where the change is invisible.

WebP

Best for
Websites that need small files.
Transparency
Supported.
Compression
Lossy, usually smaller than JPG at similar quality.

AVIF

Best for
The smallest photo files for modern websites.
Transparency
Supported.
Compression
Lossy, often smaller than WebP. Slower to create.

HEIC

Best for
Photos taken on iPhone and iPad. Opened by PixMino, saved as JPG or PNG.
Transparency
Not used by camera photos.
Compression
Lossy and very efficient, but poorly supported outside Apple devices.

AVIF and HEIC use codecs downloaded the first time you need them; after that they work offline. Animated images are converted as a single frame.

Questions

Will compressing to 500 KB lose visible quality?

For most photos at typical sizes, no. Use the comparison slider at full size to check areas with fine detail.

Can PNG files be compressed to 500 KB?

Screenshots and graphics often can, using fewer colours where it's invisible. Large photos as PNG usually need conversion to JPG or WebP.

Is 500 KB the same as 0.5 MB?

Yes. PixMino counts 1 MB as 1,000 KB, so 500 KB is 0.5 MB, or 500,000 bytes.