Compress an Image to a Target File Size

Choose the file size you need

Upload one still PNG, JPEG or WebP. Enter a maximum size from 1 to 20,000 KB, choose JPEG or WebP, and compare the original with the real compressed result. Download only when the target is met.

1 KB means 1,000 bytes. A 30 KB ceiling means a maximum of 30,000 bytes. The app tries compression at the original dimensions first, then reduces dimensions proportionally when needed.

A saved result with a measured size

In our representative example, a 791,555-byte PNG becomes a 28,691-byte JPEG under a 30,000-byte ceiling. Both images are 512 × 512 pixels. File size and visible quality vary with your image; inspect details before use.

What happens with a very small file size?

The app reduces pixel dimensions as needed to meet your limit. The preview shows actual bytes, KB and dimensions, with a clear note when the image has been resized. Very small files can look tiny or lose detail; choose a larger limit for a clearer image.

Formats, privacy and limits

JPEG fills transparent areas with white, which is visible in the preview. WebP preserves transparency. Images are converted to sRGB and metadata is removed. Still images only: up to 12 MiB and 8 million pixels, with each side from 16 to 6,000 pixels.

Files are processed temporarily on the app host. Preview is free. The shared SuperTool policy includes one anonymous final result, then account access; repeated delivery of the same saved result is free. The tool does not promise that a particular website or portal will accept your image.