JPG Compressor
This compressor is built only for JPG and JPEG files, so its slider is tuned to how JPEG compression actually behaves. Drop in a photo and it stays a JPEG, just a smaller one.
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JPEG up to 50 MB each
Your images never leave your device
JPEG, up to 50 megabytes each Your images never leave your deviceHow to use the JPG Compressor
- Drop in one or more JPG files.
- Set a quality level, or switch to a target KB.
- Download the compressed JPG, or all of them as a ZIP.
Features
- Tuned specifically for JPEG's own quality scale.
- Batch compress up to 50 files at once.
- Optional target file size in KB.
- Removes location and camera metadata for privacy.
What quality setting should I use for JPG?
80 is a safe default for photos meant to be viewed at normal size: the file drops noticeably and the loss is hard to spot. For thumbnails or previews, 50 to 60 usually still looks fine and saves more space. Go below 40 only when a form's file size limit forces it.
Why does a very low quality JPG look blocky?
JPEG compresses in fixed 8 by 8 pixel blocks, and at low quality settings the compressor has so little data budget per block that the block edges start to show, especially in smooth areas like sky or skin. Sharp edges and fine text suffer first, which is why a screenshot or a graphic with text pushed to quality 30 or lower often looks worse than a photo of a landscape at the same setting.
Does compressing the same JPG twice lose more quality each time?
Yes, a little, a property known as generation loss. Every JPEG encode throws away some detail permanently, so re-compressing an already compressed file adds another round of loss on top of the first. Keep an original copy of an important photo and always compress from that original rather than repeatedly re-saving the same compressed file.
Frequently asked questions
Why use a JPG only compressor instead of the general one?
It is the same engine with the format locked, so you cannot accidentally end up with a PNG or WebP file when a form specifically asks for a JPG.
Does this remove EXIF data like GPS location?
Yes. Camera and location metadata are stripped from the compressed file automatically.
Can I compress a batch of JPGs from a phone at once?
Yes, drop in up to 50 files and each one is compressed and shown in a results table with its own before and after size.
Is JPG a good format for screenshots or graphics with text?
Not usually. JPEG compression is tuned for photographs and softens hard edges, so text and sharp UI lines can look fuzzy even at a moderate quality. PNG is the better format for that kind of image.
What happens to a JPG's transparency when I compress it?
JPG has never supported transparency, so this does not apply here. If your source file has a transparent background, it comes from a different format and will show as solid white or black once saved as JPG.
Will compressing my JPG shift its colours?
No, compression only affects file size and fine detail, not the overall colour balance. The one exception is a source photo tagged with a wide colour profile outside standard sRGB, which the browser converts to sRGB during processing, the same as most web tools and image viewers.
