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Free Online Image Compressor

Reduce photo file sizes in seconds. Upload your image, adjust the quality and resolution, convert formats instantly, and download your optimized image. All processing happens 100% locally in your browser.

Free Online Image Compressor

How to Compress Images in 3 Easy Steps

1

Upload Image

Drag & drop or select an image from your device. We support PNG, JPG, JPEG, and WebP files up to 15MB.

2

Configure Options

Slide the quality control to select the compression level. You can also scale down the resolution or convert the format.

3

Inspect & Download

Use the interactive comparison slider to review the output quality and size savings, then download your optimized image instantly.

Why Use Our Browser Image Optimizer?

100% Secure & Private — No images are ever uploaded to any external server
Adjustable Quality — Slide from 10% to 100% to choose the perfect size-quality ratio
Resolution Resizer — Scale down dimensions to save massive amounts of storage
Format Conversion — Instantly convert files to PNG, JPG, or modern WebP format
Split Comparison Slider — Interactively compare original and compressed results in real-time
Zero Daily Quotas — Optimize as many images as you need without limits
Fast Client-Side Performance — Runs locally using hardware acceleration in your browser
Optimized for Core Web Vitals — Free tool without layout shifts or heavy scripts

Frequently Asked Questions

How does client-side compression work?

Our tool uses browser-native canvas drawing algorithms. When you upload a file, the browser decodes it, draws it on a canvas, and applies formatting compression encoders (like JPEG/WebP compression quality) locally inside your browser cache.

Are my images uploaded to the website server?

No! We respect your privacy. Everything is processed offline inside your browser session. Your images never leave your computer, making it completely secure for personal or confidential documents.

Does it support WebP and PNG formats?

Yes, we fully support PNG, JPG, JPEG, and WebP. You can choose to export to the same format or convert between them during compression.

How much file size can I save?

It depends on your settings. For typical JPG or WebP images, you can easily save 70% to 80% of the file size with no noticeable loss in visual quality. Scaling down dimensions will save even more.

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