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Home Image & Media Tools Image Compressor

Image Compressor — Free Online JPEG & PNG Compressor

Upload a JPEG or PNG, set the quality, and download a smaller file with a side-by-side preview and live size stats. Free, no signup, runs in your browser.

✓ Free Forever✓ No Signup✓ Live Preview✓ 100% Private

Upload Image

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Click to upload or drag & drop

Supports JPEG and PNG

What the Image Compressor Does

The Image Compressor reduces an image's file size so it loads faster and takes up less space. Upload a JPEG or PNG, drag the quality slider, and watch the compressed preview and size stats update live. When you're happy with the trade-off between size and quality, download the result.

It compresses by re-encoding the image as a JPEG at the quality you choose — that's what makes JPEG photos shrink so much with little visible change. Everything runs in your browser, so your image is never uploaded to a server and stays completely private.

Two things worth knowing: the output is always a JPEG, and JPEG doesn't support transparency. So if you compress a PNG with a transparent background, the transparent areas will become solid (usually black) and the file is saved as a .jpg. For photos that's exactly what you want; for logos or icons that need transparency, keep the original PNG instead.

Why Compressing Images Matters

Images are usually the heaviest part of a web page, so oversized files are a leading cause of slow loading. Smaller images improve load time, which helps Core Web Vitals (especially LCP) and, in turn, search rankings — Google treats page speed as a ranking signal. Faster pages also keep visitors from bouncing, and lighter files cut storage and bandwidth costs. Compressing before emailing or uploading keeps you under attachment limits without letting an app re-compress and degrade your photo for you.

Step-by-Step

1

Upload an image

Click or drag in a JPEG or PNG. The original preview and size appear right away.

2

Set the quality

Start around 80% — usually a big size cut with no visible difference. Lower it for smaller files.

3

Compare and check the stats

The side-by-side preview and the reduction percentage update as you adjust.

4

Download

Click Download and the compressed JPEG saves straight to your device.

Tips for Quality Without the Bloat

Start at 80%. For most photos this cuts file size dramatically while staying visually identical. Drop to 60–70% only if you need the smallest possible file for the web. Always start from the highest-quality original — re-compressing an already-compressed image stacks up visible artifacts. Check the preview and zoom into detailed areas before downloading. And since the output is JPEG, keep the original PNG for anything that needs a transparent background.

Features

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Quality Slider

Fine-tune compression and see the effect instantly.

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Side-by-Side Preview

Compare original and compressed before you commit.

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Live Stats

Original size, compressed size, and percent saved.

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One-Click Download

Save the optimized JPEG straight to your device.

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100% Private

Compression runs in your browser — nothing is uploaded.

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Free & Unlimited

No signup, no watermark, no usage limits.

Frequently Asked Questions

Is the image compressor free?
Yes — completely free with no account, no watermark, and no usage limits.
What formats can I upload?
JPEG and PNG. The compressed file is saved as a JPEG, which is ideal for photos.
What happens to a PNG with transparency?
Because the output is JPEG, transparent areas become solid and the file saves as .jpg. For images that must keep transparency (logos, icons), keep the original PNG.
How much smaller will my image get?
It varies by image and setting, but photos often shrink by 50–80% at around 80% quality with no visible change. The live stats show your exact reduction.
Is my image uploaded anywhere?
No. All compression happens in your browser — your image is never sent to or stored on a server.
Does compressing images help SEO?
Indirectly, yes. Smaller images load faster, which improves Core Web Vitals like LCP — and page speed is one of Google's ranking signals.