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PixMino

Compress an image to 50 KB

Bring a photo under 50 KB for upload forms, profile pictures and email signatures, with the highest quality that still fits.

  • 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 50 KB

  1. 1

    Add the image

    Drop it onto the page or choose it from your device.

  2. 2

    Check the limit

    50 KB is already selected. Set dimensions too if you've been given them.

  3. 3

    Optimize and download

    Compare the result with the slider and download it.

How big an image fits in 50 KB

As a rough guide, a typical photo saved as JPG reaches 50 KB at around 700 to 1,000 pixels on its longest side. Plain backgrounds allow larger sizes; detailed scenes like foliage or crowds need smaller ones. PixMino measures the real file, so you don't have to guess.

Common uses

  • Profile photos on forums, intranets and directories.
  • Images inside email signatures, where every kilobyte travels with each message.
  • Photo fields in online forms that cap uploads at 50 KB.
  • Thumbnails and small previews on web pages.

Choosing a format

JPG is the safe choice for forms. For your own website, WebP or AVIF will usually keep more detail at the same 50 KB. If you have a logo or graphic with transparency, try WebP before PNG.

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 the file be exactly 50 KB?

It will be 50 KB or less, usually just under, at the highest quality that fits.

My image is already under 50 KB. What happens?

PixMino still optimizes it. If the result would be larger than your original, it tells you, so you can keep the original.

Can I compress many images to 50 KB?

Yes. Switch to Batch, set 50 KB and keep automatic dimension reduction on for images that can't reach it at full size.