What does the Image Compressor tool do?

The Image Compressor from PowerSEOTools.online lets you compress and optimize JPG, PNG and WebP images directly in your browser. You can adjust quality, optionally resize images and download optimized files for faster website loading.

Will compressing images reduce their quality?

The tool uses smart lossy compression. At higher quality levels, the difference is usually not noticeable to the human eye, but file sizes are significantly smaller. You can preview compressed images before downloading to ensure the quality is acceptable.

Are my images uploaded to a server?

No. All compression happens locally in your browser using JavaScript and the HTML5 canvas. Your images are not uploaded, stored or logged on our servers, making this tool safe for confidential or client work.

Which image formats are supported?

You can upload common image formats including JPG, JPEG, PNG and WebP. You can choose to keep the original format or convert to JPEG or WebP for better compression in many cases.

Can I resize images while compressing?

Yes. You can optionally set a maximum width and height. Images larger than those dimensions will be scaled down while keeping aspect ratio, which can further reduce file size and improve page speed.

⚡ Image Optimization

Image Compressor

Compress and optimize JPG, PNG and WebP images without visible quality loss. Adjust quality, optionally resize, and download optimized files for faster websites and apps.

Upload images

📷

Drop images here or click to upload

Supported: JPG, JPEG, PNG, WebP · Up to ~10–15 images at a time recommended

All compression runs in your browser. Images are not uploaded to our servers.

Compression settings

Quality

80%

Higher = better quality, larger file. Lower = stronger compression.

Output format

WebP can be much smaller than JPG/PNG in many cases.

Max width (px)

Leave empty to keep original width.

Max height (px)

Leave empty to keep original height.

💡 Tip: Use 70–85% quality plus a max width of 1920px for blog images and hero banners.

No images compressed yet. Upload one or more images on the left to see compressed previews, size savings and download buttons here.

Free Online Image Compressor

Large images are one of the most common reasons for slow web pages. The Image Compressor from PowerSEOTools.online makes it easy to reduce file size while keeping your images looking sharp and professional. Everything runs in your browser, so your files never leave your device.

How the Image Compressor Works

When you upload an image, the tool uses the HTML5 canvas to redraw it at your chosen quality and size. This often reduces file size dramatically while maintaining visually similar quality. You can preview each compressed image before downloading.

Smart quality control: Adjust quality from 40–95% to find the perfect balance.
Optional resizing: Set maximum width and height to downscale oversized images.
Format selection: Keep the original format or convert to JPEG/WebP.
Per-image stats: See original size, compressed size and percentage saved.
Batch processing: Upload multiple images and download them all quickly.

Best Practices for Web Image Optimization

Use JPEG/WebP for photos and complex images, PNG for logos and graphics with transparency.
Keep hero and full-width images under about 1920px wide for most websites.
Aim for file sizes under 200–300 KB for blog images when possible.
Use descriptive file names and proper alt text for SEO and accessibility.

Privacy-Friendly and Safe

All optimization happens locally in your browser. We do not upload, store or inspect any of your images. This makes the tool safe to use with client projects, internal designs, confidential presentations and any other sensitive visual content.