Will the image be resized?

Only if the target is impossible at quality 40 or above. The result panel flags files that had to be scaled down.

PNG barely shrinks — why?

PNG is lossless; there is no quality dial. Convert to JPEG (photos) or WebP (graphics with transparency) for real savings, which is the default here.

What is the lowest quality it will use?

40 on the JPEG/WebP scale, which is already visibly compressed. Below that the tool prefers to reduce dimensions, which looks better at the same file size.

Is anything uploaded?

No. Compression runs in your browser.

Compress Image to a Target Size

Tell it the limit — 1 MB, 500 KB, 100 KB — and get the sharpest file that fits. Batches, in your browser.

Free
No upload
No signup
Batch

Drop images here, paste, or click to choose

JPEG, PNG, WebP, HEIC, GIF, BMP, AVIF · any number of files · processed on your device, never uploaded

Target size

Output formatPNG inputs are converted to JPEG unless you keep PNG below.Maximum quality — 90Keep PNG as PNG (lossless, may not reach the target)Background for transparent areas

Platforms state limits in file size, not quality: Etsy warns above 1 MB, TikTok Shop stops at 5 MB, many email tools choke over 200 KB per image. Generic compressors give you a quality slider and leave the arithmetic to you. This one takes the target size and searches for the highest quality that fits, dropping dimensions only if quality alone cannot get there.

It works on JPEG, PNG and WebP (PNG is converted to JPEG or WebP for real savings unless you keep it) and processes batches in a background thread. Files stay on your device.

How it works

01
Drop images
Any format the browser can decode, HEIC included.
02
Set the target size
Presets for 100 KB, 200 KB, 500 KB, 1 MB and 5 MB, or type any number.
03
Download
The result list shows the achieved size, quality and dimensions per file.

How the size fitting works

The tool encodes at your maximum quality first. If the file is over the limit, it binary-searches the quality between 40 and your maximum, testing seven encodes to land within a few percent of the target. If quality 40 is still too large — common with 6000 px files and a 100 KB target — it scales the image down proportionally and repeats. The result panel shows the final quality and dimensions so nothing is hidden.

Targets that make sense

Marketplace masters: keep quality high and use the platform limit (1 MB Etsy, 5 MB TikTok Shop, 10 MB Amazon). Product pages: 150–300 KB per image at 1200–1600 px keeps Core Web Vitals healthy. Email: 100 KB or less. Social: the network recompresses anyway, so 500 KB–1 MB is plenty.

Questions

Will the image be resized?: Only if the target is impossible at quality 40 or above. The result panel flags files that had to be scaled down.
PNG barely shrinks — why?: PNG is lossless; there is no quality dial. Convert to JPEG (photos) or WebP (graphics with transparency) for real savings, which is the default here.
What is the lowest quality it will use?: 40 on the JPEG/WebP scale, which is already visibly compressed. Below that the tool prefers to reduce dimensions, which looks better at the same file size.
Is anything uploaded?: No. Compression runs in your browser.

Next step

Now make the studio shot from the same photo

The photo you just prepared is all Glowya needs. Pick a template built for your product category and it restages the product into a lit, styled scene — label and packaging untouched. Every plan starts with a 7-day free trial.