Large photos slow down pages and are awkward to send. This compressor decodes the source file and creates a new JPEG or WebP copy at the quality you choose. The work happens inside the current browser tab; NooCloud never receives the original or the result.
How to use Compress Image
- Choose a JPEG, PNG, or WebP file.
- Select WebP or JPEG and adjust the quality slider.
- Process the image, compare both file sizes, and download the result.
Things worth knowing
- WebP is usually a practical choice for modern websites.
- PNG quality is lossless in the browser, so the quality slider does not change PNG output.
- Repeatedly compressing an already lossy image can introduce visible artifacts.
Frequently asked questions
Does NooCloud upload the image?
No. The browser reads, decodes, and encodes the image locally. There is no image upload endpoint.
Why can the output sometimes be larger?
A high quality setting or an inefficient output format can create a larger file. Try WebP or lower the quality gradually.