How to use Image Compressor
Select images
Choose one image or a batch of up to 20 JPG, PNG or WebP files.
Choose settings
Review the visible format, quality, dimensions or target-size controls.
Process and download
Download each real result or collect successful batch outputs in a ZIP.
Compress without changing format
JPG and WebP use adjustable quality encoding. PNG remains PNG, keeps transparency and is safely re-encoded by your browser.
Keep the original dimensions
Compression changes encoding, not pixel dimensions. The tool never upscales and never modifies your original file.
Honest PNG limitations
PNG is lossless, so files that are already optimized may show modest savings or even become slightly larger after browser re-encoding.
Private browser-based processing
Your files are decoded and encoded locally in the browser. ConvertHop does not upload image contents, filenames, previews, EXIF or GPS data to a conversion service. Analytics and advertising remain disabled.
Related tools
Frequently asked questions
Are my images uploaded?
No. Compression runs locally in your browser and the site does not receive your image files.
Will PNG transparency remain?
Yes. PNG files remain PNG and transparency is preserved. Browser re-encoding may produce modest or no savings for some PNG files.
Does compression change dimensions?
No. This tool keeps the original pixel dimensions and never upscales the image.