PNG barely gets smaller.

PNG is often already efficient for graphics. For photos, export JPEG or WEBP instead; for flat logos, reduce colors or dimensions.

I cannot hit an exact KB target.

Lower quality in steps, or shrink dimensions first. Some formats have a floor below which quality collapses.

Free Image Compressor

Compress images to a target size in KB or MB in your browser. Free online image compressor for web, email, and uploads.

About this tool

Image Compressor shrinks file size for web, email, or storage while keeping a usable preview. Adjust quality or aim for a target size when the format supports it. Pair with Image Resizer when dimensions — not only quality — are making the file large.

Best for: Oversized JPEGs and WEBPs that need to meet upload limits or load faster on a page.

How to use it

Open the image you want to shrink.
Pick an output format suited to the content (JPEG/WEBP for photos; PNG for sharp graphics when needed).
Lower quality or set a target size, then compare the preview to the original.
Download when the balance of size and clarity looks right.

Common problems and tips

PNG barely gets smaller. PNG is often already efficient for graphics. For photos, export JPEG or WEBP instead; for flat logos, reduce colors or dimensions.
I cannot hit an exact KB target. Lower quality in steps, or shrink dimensions first. Some formats have a floor below which quality collapses.

Related tools

Image Resizer — Resize by pixels, percentage, or aspect ratio.
Image Upscaler — Upscale any image without losing quality.
Image Converter — Convert between popular image formats.