Images

Image compressor

Set a 100 KB, 500 KB, 1 MB or 2 MB target, adjust JPG, PNG or WebP dimensions and quality, and compare file sizes in your browser.

Files are processed in this browser.

Image compressorPolishTools

Choose image

Drop a file or choose one. You can also paste an image.

JPG · PNG · WebP / up to 40 MB and 16 MP / no animation or rotation metadata

Settings Output format Quality 82 Maximum long edge (px) Target size (KB, 0 = no target)

Targets leave room below upload limits. Check the resulting file size.

Background

Preview

Choose a file to begin.

How to use the tool

Load the original

Choose a JPG, PNG or WebP. Check its dimensions and filename above the preview.
Set size and quality

Choose a maximum long edge and format. JPEG/WebP support quality adjustment. Enter a target in KB to search for a suitable quality.
Compare and download

Generate the result and compare the byte sizes. Inspect text and edges in the downloaded image before using it.

Before you export

Dimensions and quality are different

The maximum long edge scales down without changing the aspect ratio; it never enlarges the source. Quality changes how much information the encoder preserves at those dimensions, so small text can develop artifacts.

When the target is missed

For JPEG/WebP, the tool searches between 10% and your selected quality. A notice appears if the target is still exceeded. PNG needs smaller dimensions or another format instead of a quality search.

Current limitations

JPG · PNG · WebP / up to 40 MB and 16 MP / no animation or rotation metadata
Dimensions must be positive integers, up to 8,192px per edge and 16 MP.
One file at a time; no batch compression.
PNG/WebP retain transparency. JPEG fills transparent areas with the chosen background.
An output can be larger than its source. Encoder results vary between browsers.

Questions about the image tool

Will every file get smaller?

No. Re-encoding an efficient file can make it larger. Compare the sizes and keep the original if it is better.

Does quality 80 mean 80% of the original?

No. It is an encoder setting, not a percentage of perceived quality or file size.

Is camera location data retained?

Original EXIF/GPS data is not copied. Addresses or names visible in the picture remain and need a separate review.

All guides

Updated 2026-10-17 4 min read

Set a target file size for JPG or WebP, reduce dimensions when needed, and verify the downloaded image. Includes PNG limitations and 100 KB or 500 KB targets.

Read guide →

Updated 2026-09-03 8 min read

Choose an image format by transparency, photographic detail, file size, and compatibility rather than by habit.

Read guide →

Updated 2026-09-03 6 min read

Keep the original aspect ratio, choose sensible pixel dimensions, and know when cropping is the better option.

Read guide →