Free Online Image Compressor

Optimize automatically without changing pixels or dimensions. Your image stays on this device.

Compress one image on this device

Files stay in your browser.

Choose a file

JPG, PNG, or WebP · up to 25 MB · 40 megapixels · 12,000 px longest edge

Drop one image here

or choose a JPG, PNG, or WebP from this device

How to use this tool

  1. Choose one image

    Choose one JPG, PNG or WebP up to 25 MiB, 40 megapixels and 12000 pixels on its longest edge. The file is processed locally.

  2. Compress automatically

    Start automatic lossless optimization. The original pixels, dimensions and file format are preserved.

  3. Review and download

    Check the preview and actual file size, then download. If no smaller lossless file is available, the original is ready to download.

Make images easier to upload and share

A real image compression run

The current local compressor reprocessed this 1440 × 810 PNG without changing its format, dimensions or decoded pixels. Download both files to compare this specific result; another image may return unchanged.

Original
Original
Processed
Processed
Download originalDownload result
WebP
Original image (WebP)

Get product images ready for upload limits

Illustrative sneaker product sheet

For a catalog JPG or PNG, try reducing file overhead without resizing product details. If no smaller file is possible, the original is returned; a marketplace upload limit is not guaranteed.

Compress an image

Give a blog illustration a lighter file

Illustrative neighborhood scene at sunset

Optimize a post image’s file structure while keeping its pixels and dimensions. An already optimized file may have no savings, so compare byte counts before uploading.

Compress an image

Make a portfolio easier to send

Illustrative creator working on a miniature artwork

Try reducing the bytes of an artwork file while preserving every pixel for portfolio sharing. This tool does not make thumbnails or lower-resolution viewing copies.

Compress an image

Share an event poster without the oversized file

Illustrative collection of event poster designs

Try lossless optimization before sharing a poster. Its full pixel dimensions remain; if the file is still too large for a message, resize it separately.

Compress an image

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Frequently asked questions

What can I do with this tool?

Compression may leave the file unchanged. JPG and PNG receive lossless optimization; WebP currently passes through unchanged. Pixel dimensions and source format are preserved.

How do I get started?

Choose one file within 25 MiB, 40 megapixels and a 12000-pixel longest edge. Run optimization, check the actual byte savings and download; an already optimized file may stay unchanged.

Does compression change image quality?

No. Lossless optimization preserves decoded pixels, dimensions and source format.

Which image formats can I use?

JPG and PNG support lossless optimization; WebP can be loaded but is currently returned unchanged. The limits are 25 MiB, 40 megapixels and a 12000-pixel longest edge.

Why is my result the same size?

An optimized file may have no smaller lossless version. The original is returned instead of reducing quality or increasing size.

Where can I save the result?

The result area provides a preview and Download action when processing finishes.

Check for savings while keeping every pixel

Try local lossless JPG or PNG optimization, compare the byte count and keep the original when no smaller version is possible.

Compress an image