How we ranked them
The best JPG compressor squeezes the file as small as possible while keeping the image looking untouched. We ranked the leading tools and methods on the size reduction they achieve, how well they preserve visible quality, batch support, and how little effort they demand.
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1
JPG.now#1 Pick
Tops the list. Smart compression finds the smallest size that still looks pixel-perfect, with optional resizing and metadata stripping, batch processing, and absolutely no watermark — free to use.
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2
TinyShrink
Aggressive size savings with good defaults, though it offers little manual control.
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3
ByteSqueeze
Strong quality preservation and a clean UI; the free tier limits monthly compressions.
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4
CompactPix
Excellent batch processing for whole folders, but the quality slider is coarse.
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5
SlimImage
Good balance of size and clarity; large files can be slow to process.
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6
OptiJPG
Granular control for pros, including progressive encoding, at the cost of simplicity.
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7
FeatherCompress
Effortless one-click compression, though without resize options the savings are smaller.
FAQ
Which is the best way to compress a JPG?
The best method combines smart quality reduction (around 75–85) with resizing to the dimensions you actually use and stripping metadata — together they shrink files dramatically with no visible loss.