JPG and WebP Image Compressor to Reduce File Size Locally

Compress JPG and WebP images locally with quality and size controls. Compare file sizes before downloading; smaller files are not guaranteed.

Free to use. No signup or watermark.
Original image

Select a photo or image to begin.

Everything stays on your device.

Compress your image locally in your browser.

Up to 20 MiB and 33.5 million pixels. No server upload. Animated images are not supported.

Image processing settings

Reduce photo file size with quality controls and downscaling

Reduce an image's file size by adjusting JPEG or WebP quality and, when useful, its longest edge. The result shows the original and new byte counts alongside a preview, so you can judge the tradeoff before saving. Compression is content-dependent: a file that is already optimized can grow when re-encoded. All processing happens in this browser. For smaller website photos or email attachments, compare a WebP export with JPEG at the same dimensions, then judge the actual bytes and visible detail before saving.

Ways to use the image compressor

Reduce large photos for web pages and email attachments.

Compare JPEG and WebP results at different quality settings.

Combine downscaling with compression for a smaller download.

How to reduce JPG or WebP file size for the web

Compression depends on image content, output format, quality, and dimensions. A lower quality setting is a starting point, not a promise of a particular size.

Reduce photo dimensions before lowering JPEG or WebP quality

If a photo will appear at a modest size, a smaller maximum edge may save more bytes than an aggressive quality reduction alone. The compressor preserves the source proportions and does not enlarge a smaller input just to meet the maximum edge. Inspect the resulting dimensions as well as the byte count.

Compare quality using the actual picture

Try JPG or WebP, then look at text edges, skin, gradients, and fine texture in the processed preview. PNG does not use the same lossy quality control. Converting a simple graphic to a lossy format can introduce artifacts without making it meaningfully smaller.

Read both file sizes

The page shows the original and actual result sizes. A re-encoded file can be larger, especially if the source was already optimized. There is no exact-byte guarantee here. If an upload has a strict limit, compare its requirement with the result's exact byte count and adjust one setting at a time.

Need help choosing a file? Read the image format guide or compare common pixel dimensions.

How to use the free image compressor tool

01

Select a source image

Open a static PNG, JPG or WebP locally without a server upload.

02

Adjust quality and size

Choose JPG or WebP, lower quality as needed, and set a maximum edge to reduce dimensions.

03

Compare the actual result

Check the preview and exact byte counts. Download only when the size and appearance suit your needs.

Image Compressor: questions & answers

Everything you need before your next download.

Will the compressed image always be smaller?

No. An already optimized or simple source may be smaller than a re-encoded image. The tool displays the exact result and clearly warns if it is larger; try a lower quality, a shorter longest edge, or another format.

Does a quality setting mean lossless compression?

No. JPEG and WebP here use lossy browser encoders. Lower quality can remove detail. Keep the original and inspect the preview before using the result.

Can I create an image with an exact KB size?

This compressor aims to reduce existing images, rather than guarantee a byte count. The Exact File Size Image generator creates a new PNG padded to a specified size when its encoded data fits.

Start your next creation with a simple image

Set the mood for a social post, refresh your wallpaper, or give a presentation a clean opening. Pick a canvas and make it yours.

Put your favorite colors on your screen

A soft sunset gradient or a quiet wash of color can make a screen feel like yours. Choose a 4K desktop canvas or a portrait phone size, then build a wallpaper around your own palette.

Give your next presentation a clean opening

Leave room for your ideas with a white canvas, or set the tone with a simple gradient. Start at 1920 × 1080, then add your title in a slide app or use the background for a project cover.