Free Tool

Image Compressor

Shrink JPG, PNG, and WEBP file sizes right in your browser. Adjust the quality, see the savings, and download — nothing is uploaded.

Drop an image here, or click to upload

JPG, PNG or WEBP · max ~20MB

Large images slow down your pages and eat into upload limits. This free image compressor shrinks JPG, PNG, and WEBP files right in your browser — drag in a photo, slide the quality to taste, and watch the file size drop, often by 60–80% with little visible loss. Nothing is uploaded, so even private images stay on your device.

Step by step

How to use the Image Compressor

Upload an image

Drag & drop or pick a JPG, PNG, or WEBP file.

Set the quality

Slide the quality control and instantly see the new file size and savings.

Download

Save your smaller image — ready to upload faster anywhere.

Why you'll like it

Features & benefits

100% private

Compression runs on your device; images never touch a server.

Free & unlimited

No sign-up, no watermark — compress as many images as you want.

Adjustable quality

Choose the exact balance of file size and quality you need.

See the savings

Original vs compressed size and percent saved, before you download.

Instant

Compresses in your browser in a second or two.

Any device

Works on desktop and mobile, with nothing to install.

What people use it for

Use cases

Faster product photos

Shrink store images so pages load quickly and rank better.

Email attachments

Get big photos under attachment size limits.

Website speed

Reduce page weight to improve Core Web Vitals.

Social uploads

Compress images for faster posting on any platform.

Questions answered

Frequently asked questions

Everything you might be wondering about the Image Compressor.

How much can I compress an image?

It depends on the image, but the quality slider typically cuts file size by 40–80% with little visible loss. Lower the quality for smaller files; raise it for sharper results. You see the exact savings before downloading.

Does compressing reduce the dimensions?

No — compression keeps the same width and height and reduces the file size by optimising quality. To change dimensions, use the Image Resizer.

Are my images uploaded?

No. Compression happens entirely in your browser using a canvas — your images never leave your device.

What is the difference between lossy and lossless compression?

Lossy compression (like JPG) removes some image data to make files much smaller, with a slight quality trade-off you control. Lossless compression (like PNG) keeps every pixel but saves less space. This tool uses adjustable lossy compression so you choose the balance.

Which format compresses best — JPG, PNG, or WEBP?

For photos, JPG and WEBP compress far better than PNG, and WEBP is usually the smallest at the same quality. PNG is best for graphics, logos, and anything needing transparency. This tool outputs an optimised JPEG for the smallest photo files.

Will compressing reduce my image quality?

A little, but you control how much with the quality slider. Around 70–80% usually looks identical to the original while cutting most of the file size. Go lower only when you need the very smallest file.

What is a good file size for web images?

Aim for under ~200 KB for most web images and under ~100 KB for thumbnails. Smaller images load faster, which improves page speed and your Core Web Vitals.

Can I compress several images at once?

This tool compresses one image at a time so you can fine-tune each. For a batch, run them one after another — it only takes a second or two each, and nothing uploads in between.

Is there a file size limit?

You can load images up to about 20 MB. Because everything runs in your browser, very large files use your device's memory, so extremely high-resolution images may be slower on older devices.

How do I compress an image to a target size like 1MB, 100KB, or 20KB?

Drag the quality slider down and watch the live file-size readout — lower quality means a smaller file. Nudge it until you hit your target (1MB, 100KB, 20KB, whatever you need), then download. Smaller targets like 20KB suit thumbnails; 100KB–1MB suits most web and email images.

How do you compress an image without losing quality?

There is always some trade-off with lossy compression, but around 70–80% quality usually looks identical to the original while removing most of the file size. Keep the slider high, compare the preview, and only go lower when you specifically need a smaller file.

See it in action