Compress Image

Image compression reduces the file size of an image by encoding it more efficiently. Our tool uses lossy JPEG compression — the same algorithm that powers billions of images on the web — with a user-controlled quality slider. By lowering the quality slightly (typically to 75–85%), you can achieve dramatic file size reductions that are imperceptible to the human eye.

Images account for 50–80% of total page weight on most websites. Compressing images is the single most impactful optimization you can make for page load speed, which directly affects Google rankings through Core Web Vitals. Even for non-web use, smaller images mean faster email sending, less storage consumed, and quicker sharing.

All compression happens directly in your browser using the HTML5 Canvas API. Your images are never uploaded to any server, making this tool completely safe for private and sensitive photos.

1. 1

   Upload Image

   Select a JPG, PNG, or WebP image you want to compress.

2. 2

   Adjust Quality

   Use the slider to set your desired compression level (lower quality means smaller file size).

3. 3

   Compress

   Click compress to process the image and view the new file size.

4. 4

   Download

   Download the highly optimized image instantly.

• Optimize images for faster website loading
• Reduce file sizes for email attachments
• Save storage space on your device
• Meet file upload size limits
• Prepare photos for social media sharing
• Compress large camera shots

How much can I compress my image?

The reduction depends on the image content and the quality setting you choose. For photographs, you can typically achieve 50–80% size reduction at a quality setting of 75–85% with no visible quality loss. Images with lots of detail or fine patterns compress less efficiently.

Does compression reduce the image dimensions (width and height)?

No. Our image compressor only reduces the file size by optimizing the JPEG compression data. The actual pixel dimensions (width × height) of your image remain exactly the same.

What is the best quality setting for web images?

For most web use cases, a quality setting between 75% and 85% delivers the ideal balance of visual quality and file size. At 75%, images typically look indistinguishable from the original at normal screen sizes while being 4–6× smaller.

Which image formats does this tool support?

The compressor supports JPG/JPEG, PNG, and WebP formats. For PNG images, the output will be a high-quality JPEG file, which is typically much smaller than the original PNG.

Are my images uploaded to a server?

Never. All compression happens locally in your browser using the HTML5 Canvas API. Your images are never uploaded, stored, or processed by any external server, making it safe for personal and sensitive images.

Can I compress multiple images at once?

Yes. You can process multiple images by uploading them one at a time. Each compressed image is available for individual download immediately after processing.

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