iToolsEra iToolsEra

JPG Image Compressor

Compress JPG and JPEG images online to reduce file size while keeping good image quality.

All tools
image Tool

Compress JPG Images

Compress JPG and JPEG images online without installing software. Upload one or more JPG images, choose the compression quality and download the smaller files.

image Category Collection

Drop JPG images here

or choose images from your device

JPG/JPEG only · Maximum 10 files · Maximum 20 MB per file
Common Compression Quality
Set one quality for all selected images. Each image can then be fine-tuned individually.
75%
10% — smaller file 95% — higher quality
Before compression, each selected image shows its original size and an estimated compressed size. The estimate is generated in your browser; the final server result may differ slightly.

What is a JPG Image Compressor?

A JPG image compressor reduces the file size of JPEG images by re-encoding them with a selected compression quality. Smaller images can be easier to upload, share and store.

The iToolsEra JPG Image Compressor processes your images in the browser-to-server workflow and returns compressed JPG files for download.

How does JPG compression work?

JPG uses lossy compression. During compression, image data that has less visual importance can be discarded to reduce the number of bytes required to store the image.

The quality setting controls the balance between file size and visual quality. Lower quality generally produces a smaller file, while higher quality generally preserves more detail.

Tips for reducing JPG file size

  • Use a quality value around 70–80 for a practical balance.
  • Use lower quality when maximum file-size reduction is more important than fine detail.
  • Keep the original image when you may need the highest available quality later.
  • Compress images before uploading them to websites or sharing platforms when file-size limits are important.

Frequently Asked Questions

Yes. You can select multiple JPG or JPEG images and compress them together.

JPG compression can reduce image quality because JPEG is a lossy image format. The quality control lets you choose the balance between visual quality and file size.

The tool accepts standard JPG and JPEG images.