Image Compressor Online

Upload one image, adjust the encoding quality, compare the original and compressed file sizes, and download the result without changing its pixel dimensions.

JPG, PNG, WebP, AVIF, and JFIF inputQuality control from 20 to 95Original and output size comparison

Source image

Choose an image to see the source preview.

Result

What Is an Image Compressor?

An image compressor re-encodes an image to reduce its file size. This page keeps the source dimensions, lets you choose the quality level, and shows the output size so you can decide whether the reduction is suitable.

The compressor with a photo loaded, showing the original file size and the quality control.

How to Compress an Image

Inspect both visual quality and file size before keeping the compressed copy.

1

Upload one image

Choose a supported JPG, PNG, WebP, AVIF, or JFIF file from your device.

2

Adjust the quality

Move the quality control between 20 and 95 to set the compression tradeoff.

3

Compress and compare

Process the image, compare source and result sizes, inspect the preview, and download the output.

Image Compressor Input, Output, and Controls

The output format depends on the source while the pixel dimensions remain unchanged.

One supported raster image

Use JPG, JPEG, JFIF, PNG, WebP, or AVIF up to 24 MB and within the current 40 megapixel limit.

Compressed JPG or WebP

JPEG sources remain JPG; PNG, WebP, and AVIF sources are encoded as WebP for the quality-controlled result.

Quality from 20 to 95

The starting value is 82. Lower values usually reduce file size further but can make artifacts more visible.

The compressed download beside the original, with both file sizes visible and the output format named.

Image Compressor Features

The controls focus on one file-size decision instead of combining compression with unrelated edits.

Adjustable encoding quality

Choose how strongly to compress the image before creating the downloadable result.

Source and result file sizes

See both sizes and the signed percentage change after processing.

Unchanged pixel dimensions

Compression keeps the original width and height rather than resizing the image.

Local browser processing

The current compression workflow decodes and re-encodes the selected image in your browser.

When to Use an Image Compressor

Compress for a known file-size or delivery constraint, then verify the result in context.

A photo compressed under a form's file size limit before submission.

Upload limits and forms

Reduce an image before submitting it to a portal, listing, or form with a smaller file-size allowance.

A lighter product photo prepared for a storefront page.

Web and ecommerce assets

Prepare lighter product photos, article images, and page graphics while keeping their dimensions.

A smaller copy of an image made for an email attachment.

Email and team delivery

Create a smaller copy for an attachment, review link, handoff, or shared document.

Image Compressor Limitations

Compression changes encoding, not the subject, dimensions, or missing image detail.

No exact target file size

The quality control does not guarantee an exact KB or MB result because image content affects compression.

Some inputs change format

PNG, WebP, and AVIF inputs produce WebP output; use a dedicated converter when the destination requires another format.

Lower quality can show artifacts

Inspect text, edges, gradients, faces, and detailed textures before using a heavily compressed copy.

Image Compressor FAQ

Answers about formats, dimensions, quality, and file-size results.

Will the image compressor change the dimensions?
No. This compressor keeps the source pixel width and height. Use an image resizer when the dimensions also need to change.
Why can a PNG or AVIF download as WebP?
JPEG inputs remain JPG. Other supported inputs use WebP output so the quality control can produce a compressed browser-compatible result.
Can I compress an image to an exact KB size?
Not with the current control. Choose a quality value, process the image, and compare the resulting size; the page does not promise an exact target.
Which quality value should I use?
Start near 82, then lower the value in steps while inspecting the image at its final display size. Detailed graphics and text may need a higher value.
Does this compressor support batch processing?
No. The current page accepts and compresses one image at a time.

Compress an Image and Compare the Size

Upload one image, adjust the quality, and inspect the file-size change before downloading.