Frequently Asked Questions
Common questions about image compression, WebP conversion, and privacy protection.
These answers cover the questions users most often have before using an image optimization tool. Compression results may vary depending on the original format, resolution, color count, and transparency.
- Keep a separate copy of important original files.
- If the result is larger than the original, keeping the original is usually safer.
- For web publishing, choose dimensions and quality based on the actual use case.
A safer first workflow
Start around quality 80 and test one or two files first. If the result looks natural, apply the same setting to similar images. Review screenshots and product photos separately because they can react differently to compression.
When the result is unexpected
Some files may become larger after conversion, transparency may need extra review, and some platforms may not accept WebP. In those cases, keep the original format or compare JPG, PNG, and WebP before publishing.
Are my images uploaded to a server?
No. Image compression and WebP conversion run in your browser. Selected image files are not sent to or stored on this site's server.
Does WebP always reduce file size?
Not always. WebP often creates smaller files for web images, but some images can become larger. Compare the result size before downloading.
What quality setting should I use?
For blog and body images, 75% to 85% is usually a practical range. For product photos or portfolio images where detail matters, choose a higher quality setting.
Can I process multiple images at once?
Yes. Select multiple images to process them sequentially, then download individual files or all results from the list.
Will PNG transparency be preserved?
Transparency can be preserved depending on the original format and output. WebP supports transparency too, but important design files should always be reviewed after conversion.
Can I compress photos on mobile?
Yes. You can choose and compress images from a mobile browser. Very large photos or large batches may take more time depending on device performance.
Does image optimization help SEO?
Reducing image size can improve page loading and user experience. Search ranking depends on many factors, but fast loading and appropriately sized images are important parts of website quality.