Compress Images Online for Free

Shrink JPG, PNG and WebP files without leaving your browser.

Image Compressor

100% Private processing — your photos never leave your device

Click to upload or drag and drop imageSupports JPG, PNG, WebP, GIF, BMP

Ad Space (auto) — Configurable via NEXT_PUBLIC_ADSENSE_CLIENT

What does Image Compressor do?

Reduce image file size by re-encoding at a quality level you control. You see the original and compressed sizes side by side with the percentage saved, and a live preview so you can find the point where the file is small but still looks right.

How to Use Image Compressor

1
Choose an imageDrag a file in, or tap to pick one from your device.
2
Set the qualityStart at 75% — most photos look identical and halve in size.
3
Compare the previewCheck the compressed preview against the original.
4
DownloadSave the compressed file. The original on your device is untouched.

Key Features

Quality slider with an instant preview of the result
Before and after file sizes with the percentage saved
Optional maximum width or height to cut size further
Output as JPEG, WebP or PNG regardless of the input format
Batch mode: compress several images and download them one by one
Target-size mode that searches for the quality needed to hit a file size

Frequently Asked Questions

Does compressing reduce image quality?

JPEG and WebP are lossy formats, so some information is always discarded. At 75–85% quality the difference is invisible on screen for most photographs while the file is typically 50–70% smaller. Below about 60% you start to see blocking in flat areas and around sharp edges.

How do I compress an image to a specific size like 100 KB?

Switch on target-size mode and enter your limit. The tool re-encodes at progressively lower quality until it lands under your target, then reports the quality it used. If the target is impossible at the current dimensions, it suggests reducing the width.

Which format gives the smallest file?

WebP, usually by 25–35% over an equivalent JPEG, and it supports transparency. Every current browser supports it. Use JPEG only when you need compatibility with older software, and PNG only when you need lossless output.

Are my photos uploaded to your server?

No. Compression happens entirely in your browser using the Canvas API. Nothing is transmitted, which is why there is no upload bar and why it works offline once the page has loaded.

Why did my PNG get bigger?

PNG is lossless, so re-encoding a photograph as PNG can produce a larger file than the original. For photos, choose JPEG or WebP output. PNG is the right choice only for screenshots, logos and images with sharp flat colour.

100% Data Privacy

Your image is read straight from your device by the browser and processed on a canvas in this page. It is never uploaded, stored or sent anywhere — you can disconnect from the internet after the page loads and the tool still works.