How to Compress Images Online

Compress JPEG, PNG, and WebP images without losing quality. Reduce file size by up to 80% in your browser. Free — no upload to any server.

Open Image Compressor →

Step-by-Step Guide

1

Upload your image

Drag and drop your image or click to browse. Supports JPEG, PNG, WebP, and GIF formats up to 50MB. Everything runs locally in your browser — your images are never uploaded to any server.

2

Adjust compression level

Use the quality slider to find the right balance between file size and visual quality. The real-time preview shows you exactly how the compressed image looks before you download it.

3

Compare before and after

See the original and compressed images side by side. The tool shows the exact file size reduction and compression ratio so you can make an informed decision.

4

Download the result

Click download to save your compressed image. The output keeps the original format unless you choose to convert. Batch mode lets you compress multiple images at once.

Try It Now — Free

No signup, no download. Runs entirely in your browser.

Open Image Compressor

Frequently Asked Questions

Does compression reduce image quality?
Lossy compression (JPEG, WebP) reduces quality slightly, but at 80-85% quality the difference is virtually invisible to the human eye while cutting file size by 60-80%. Lossless PNG compression reduces size without any quality loss.
Are my images uploaded to a server?
No. All compression happens in your browser using JavaScript and Canvas API. Your images never leave your device, making it safe for sensitive or private photos.
What is the best image format for web?
WebP offers the best compression-to-quality ratio and is supported by all modern browsers. Use JPEG for photos, PNG for graphics with transparency, and WebP when you want the smallest file size.
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