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Image Tools

Free Image Compressor Online

Reduce image file size, resize large photos, and export JPG, PNG or WebP in your browser.

No uploadResize imagesJPG PNG WebP
Enter a positive width.
Enter a positive height.
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Compressed image preview

Private image optimization in the browser

This compressor uses the browser canvas to resize and encode images locally. It is useful for reducing photo size before uploading to websites, email, forms, ecommerce listings, and social profiles without sending the original file to a server. The tool supports JPG, PNG, and WebP output formats, allowing you to choose the best format for your needs.

Compression happens entirely on your device, ensuring complete privacy for your images. You can adjust quality levels and resize dimensions to achieve the perfect balance between file size and image quality. The preview feature lets you see the compressed image before downloading.

Download without watermark — download your files watermark-free.

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Frequently Asked Questions

No. Compression runs inside your browser, so selected images stay on your device. No data is sent to any server, ensuring complete privacy for your photos and images.

WebP usually gives the smallest file size with good quality, JPG is best for photos and offers broad compatibility, and PNG is best when you need sharp graphics or transparency support. Choose based on your use case.

Yes. Set max width or height and choose a quality level before downloading the optimized image. This allows you to both reduce dimensions and compress the file size in a single operation.

The default 82% quality works well for most use cases. Higher quality (90-100%) preserves more detail but results in larger files. Lower quality (50-70%) produces smaller files but may show compression artifacts. Adjust based on your needs.

The tool runs in your browser, so the limit depends on your device's memory. Most browsers can handle images up to 20-50MB. For very large images, consider resizing them first to reduce memory usage.

Currently, this tool processes one image at a time. For batch processing, you would need to compress each image individually. This ensures you can preview and adjust settings for each image separately.

Compression can affect quality depending on the settings you choose. Higher quality settings preserve more detail but result in larger files. The preview feature lets you compare the original and compressed images before downloading.

Yes. Image Compressor is completely free with no hidden fees, no registration required, and no limits on usage. Compress as many images as you need without any cost.