What This Tool Does

It reduces the file size of your image. Upload a photo, set the quality level, compress it, and download a smaller version. The tool shows you the before and after sizes so you know exactly how much was saved.

Most images people share online are far larger than they need to be. A photo taken on a phone is often 4 to 8 MB. For a website, an email attachment, or a social media upload, 200 to 500 KB is enough. Beyond that, the extra file size just slows things down without improving how the image looks on screen.

Compression works by reducing the amount of data used to store each part of the image. At quality settings above 60 percent, the difference is not noticeable to most people. The image looks the same but the file is significantly smaller.

How to Use It

• Click Choose Image and select your file from your device.
• Check the original file size shown below the image.
• Adjust the quality slider. Higher values preserve more detail. Lower values give smaller files.
• Click Compress Image.
• Download the compressed image and compare the file sizes shown.

How Much It Can Compress

The reduction depends on what is inside the image. Photos with lots of color variation and detail compress more than simple graphics. A typical phone photo can go from 4 MB to under 400 KB at 75 percent quality with no visible difference.

Images that are already compressed, like screenshots or graphics with flat colors, see smaller reductions. The tool optimizes what it can and shows you the result. If the saving is not enough, try a lower quality setting and check whether the output still looks acceptable for your use case.

WebP format generally compresses better than JPG at the same quality. If you need the smallest possible file, use the WebP Converter tool after compressing.

Common Uses

• Reducing image sizes before uploading to a website to improve page load speed
• Compressing photos before attaching them to emails with size limits
• Making images smaller before sharing them in messaging apps
• Reducing file sizes before bulk uploading to a CMS or e-commerce platform
• Compressing product photos before listing them in an online store

Quality vs. File Size

Finding the right quality setting is a balance. At 80 to 95 percent quality, compressed images are practically indistinguishable from the original. File sizes at this range are typically 30 to 60 percent smaller than the original.

At 60 to 75 percent, file sizes drop further and quality is still good enough for most web use. Below 50 percent, compression artifacts start to appear, especially in areas with sharp edges or fine text. That range is generally only useful when file size is the only concern and visual quality is not.

For website images, 75 to 85 percent quality is a practical starting point. Download the result, check how it looks at full size, and adjust if needed.

Frequently Asked Questions

Will the compressed image look different?

At quality settings above 70%, most people cannot tell the difference. The compression removes data that contributes very little to the visible appearance of the image.

What formats are supported?

JPG and PNG as input. The output is saved as JPG for best compression results.

Is there a file size limit?

No server limit. The tool runs entirely in your browser.

Can I compress multiple images at once?

One at a time. Run the tool again for each additional image.

Does compression affect image dimensions?

No. The image width and height stay the same. Only the file size changes.

Can I undo the compression?

Compression is a one-way process. The original file on your device is not changed, so you can always go back to it if needed.