Reduce a large photo attachment
Create a more compact copy of a photograph for a message or upload. Start with a moderate quality setting, inspect important details in the preview, and lower the setting only if the result still meets your needs.
Image compressor
Reduce image size with adjustable JPEG or WebP quality.
- ✓ Adjust JPEG or WebP quality
- ✓ Compare original and output sizes
- ✓ Retain pixel dimensions
Processed on your device
Balance a smaller file with a picture worth keeping
Find a practical balance between file size and appearance. Compare the original and output sizes before downloading.
Optimize website imagery
Compare JPEG and WebP exports for article images or other photographs. A smaller file can reduce the amount of image data a visitor downloads, but visible text, faces, and fine patterns should remain clear at the intended display size.
Get the best result
The output may be larger for an already optimized image. Lower quality usually creates a smaller file. This is lossy compression, so keep your original.
A practical example
Starting point
A photograph exported at 80% WebP quality.
Expected result
A new WebP image and a size comparison against the original.
The actual size reduction depends on the source. The tool shows a percentage saving only when the generated file is smaller.
Troubleshooting and useful checks
Compression made the file larger
An already compressed source can be smaller than a fresh export. Try the other output format or a lower quality setting, and resize oversized images if keeping every pixel is unnecessary.
Fine details look damaged
Increase the quality setting and compare again. Repeatedly compressing an already compressed image can accumulate artifacts; begin from the best available original.
Frequently asked questions
A little clarity before you get started.
Does this reduce image dimensions?
No. Pixel dimensions remain unchanged. Use Image resizer when you also want fewer pixels.
Does this use lossless compression?
No. JPEG and WebP exports here use a quality setting that can discard visual information. Keep your original if you may need to edit or re-export the image later.
Does the tool reduce width or height?
No. Pixel dimensions remain unchanged. Use Image resizer first if the image contains more pixels than the destination needs.
Can I compress a transparent image?
Choose WebP when transparency needs to be retained. JPEG fills transparent areas with white, which can change the appearance of logos and cutout images.
What quality setting should I choose?
There is no universal setting. Start around 80, then compare the result at the intended display size. Text, gradients, and detailed patterns may need a higher setting than a simple photograph.
Do I need an account to use this tool?
No. This tool is free to use without signing in. An account lets you keep a list of favorite tools.
Can I use this on a phone?
Yes, with a current browser. File support, download behavior, and available memory vary by device. For large documents and images, a computer is often more comfortable.