Image Compressor
Compress JPG, PNG, or WebP images with an adjustable quality level and instant size comparison.
Use Image Compressor
How to use this tool
- Choose an image and review its original dimensions and file size.
- Set the quality between 0.1 and 1.0, then select Process image.
- Compare the downloaded image with the original, especially around small text and sharp edges.
Compression and image dimensions
Compression changes how an image is encoded. This tool keeps the pixel dimensions and uses WebP output for PNG inputs, with JPEG output for other inputs. If your upload destination requires a particular format, check the downloaded file extension. To reduce pixel dimensions, use Image Resizer first.
Example
Start at quality 0.8 for a photograph and inspect the result. Lower the setting only if the smaller file remains clear enough for its purpose.
Questions about this tool
Can I guarantee an exact file size?
No target-size control is available. Output size depends on the picture and quality setting; compare the result after processing.
Why did my PNG become WebP?
The current compression tool selects WebP for PNG input. Use a format converter if your destination requires another format.
Related tasks
About Image Compressor
Compress JPG, PNG, or WebP images with an adjustable quality level and instant size comparison with a focused online interface designed to help you complete this task quickly on Costovia.
How to use Image Compressor
- Choose a supported image file and set any size, quality, crop or format options.
- Run the image operation and preview the result when available.
- Download the processed image and check dimensions, quality and format before publishing.
Example
Example: use a sample input first to confirm that Image Compressor produces the format or result you expect before processing important content.
What to check
Image output can change dimensions, format, compression or quality depending on the selected operation; review the result before publishing.
Frequently asked questions
What does Image Compressor do?
Compress JPG, PNG, or WebP images with an adjustable quality level and instant size comparison.
How do I use the image compressor?
Enter the values, text or files requested by Image Compressor, choose any relevant options, run the tool, and review the result before copying or downloading it.
Will the image quality change?
Some image operations can change dimensions, compression, format or quality. Review the downloaded image before publishing it.
Related tools
Image compression tips
Compression trades file size against visual quality. Start with a moderate setting, compare the result at normal viewing size, and keep an original copy when image quality matters. Photos usually tolerate more compression than screenshots, text or line art.
Reviewed 30 September 2026.