Compress Images
JPG photos, smaller files

Compress JPG Images Online

JPG is the format most photographs arrive in, and it is the one where quality settings make the biggest difference. Drop a photo in, choose how much detail to keep, and download the result.

Free to use. No account required. Images are processed in your browser.

Drag and drop your images here

or click to browse files

JPG PNG WebP GIF SVG

Up to 40 MB per image. Nothing is uploaded.

Choosing the Right JPG Quality

JPG throws detail away on purpose. The quality setting decides how much.

A JPG is not a faithful copy of the original image; it is an approximation, chosen to look close enough while taking far less space. The quality slider controls how coarsely that approximation is allowed to work.

What the numbers mean in practice

  • 90–100% — very close to the original. Large files, and the saving is modest. Use this when the image will be printed or edited again.
  • 75–85% — the sensible range for photographs on the web. Most people cannot tell the difference from the original at normal viewing sizes, and the file shrinks dramatically.
  • 50–70% — visible softening in fine detail and around high-contrast edges. Acceptable for thumbnails and previews.
  • Below 50% — blocky artefacts become obvious. Rarely worth it, because reducing the image's dimensions usually saves more space with less visible damage.

Compressing a JPG twice

Re-encoding an already-compressed JPG adds a second layer of loss without removing much extra data, and can even make the file larger. If you have the original — from a camera, or an export from an editor — always compress from that rather than from a JPG that has already been through the process.

JPG and transparency

The JPG format has no alpha channel, so it cannot store transparency at all. If you compress a PNG or WebP that has transparent areas and choose JPG as the output, those areas are filled with white. The tool tells you when that has happened; choose PNG or WebP instead if the transparency matters.

JPG Compression FAQ

Does compressing a JPG reduce its quality?

Yes — JPG is a lossy format, so compressing it always discards some detail. At 80% quality the loss is usually invisible on a screen; at 40% it is obvious. There is no way to make a JPG smaller without losing something, because the format has no lossless mode.

Can I get the original quality back?

No. Once a JPG has been compressed, the discarded detail is gone for good; saving it again at 100% will not restore it. Keep your original file, and treat the compressed version as a copy for a specific purpose.

How small will my JPG get?

It depends entirely on the image. A high-resolution photo straight from a camera can often drop to a fraction of its size; a small JPG that has already been compressed may barely change, or may even grow. This tool shows the real result rather than promising a percentage.

Should I convert my JPG to WebP instead?

If the image is going on a website and you do not need ancient browser support, WebP usually produces a smaller file than JPG at the same visual quality. Select WebP as the output format, or use the WebP compressor.

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