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FreeToolsDaily

Image compressor

Make photos and graphics smaller for websites, email and uploads, while keeping them sharp.

Free No sign-up Files stay on your device

How it works

How to use the Image Compressor tool

  1. 1

    Add images

    Drop JPG, PNG or WebP files. You can compress up to 50 at a time.

  2. 2

    Choose a strength

    Balanced suits most images. Optionally limit the longest side, which saves the most space on large photos.

  3. 3

    Compare and download

    Drag the before/after slider to check quality, see how much you saved, then download.

How each format is compressed

JPG and WebP are compressed by re-encoding at a lower quality. Small, invisible details are discarded first, so a quality of 70–80% usually looks identical to the original at a fraction of the size.

PNG is lossless, so FreeToolsDaily compresses it by reducing the number of colours in the palette (quantisation), the same technique popular PNG optimisers use. Logos, screenshots and illustrations often shrink by 50–80% with no visible change. Photographs saved as PNG compress far better if you switch the output format to JPG or WebP.

The biggest win: resize first

A modern phone photo is often 4000 pixels wide, far more than any web page or chat app displays. Turning on “Limit dimensions” and setting the longest side to 2048 or 1600 px typically cuts the file size by 75% before compression even starts.

Limitations

We’d rather be upfront about what this tool can’t do yet:

  • Metadata such as EXIF camera data and GPS location is removed. That's good for privacy, but note it if you need it.
  • Animated GIF/WebP files aren't supported; only the first frame would be processed.
  • WebP output requires a browser that can encode WebP (Chrome, Edge and Firefox can; some older Safari versions can't).

FAQ

Frequently asked questions

Are my images uploaded to a server?

No. Conversion uses your browser's built-in image engine, so your pictures never leave your device.

Will compression reduce image quality?

Slightly, but usually invisibly at the Light and Balanced settings. Use the before/after slider to check every image before you download.

How do I compress an image to under 100 KB?

Choose Strong, switch the format to JPG or WebP, and turn on Limit dimensions with a longest side around 1200 px. Most photos then fall well under 100 KB.

Why did my image get bigger?

That happens when an image is already heavily optimised, or when a PNG photo is kept as PNG. Try JPG/WebP output or a stronger setting. The size comparison always shows the real result.

Is location data removed from my photos?

Yes. Re-encoding drops EXIF metadata, including GPS coordinates, which makes compressed photos safer to share.

Keep going

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