Image Compressor Free
Shrinks the file size of JPG and WebP images by a quality level you set, showing the size before and after.
About this tool
Shows the total file size before and after compression, side by side with the percentage saved.
PNG cannot be compressed by lowering quality, so it is converted to JPG or WebP first — pick WebP to keep transparency, or JPG if you do not need it.
This tool runs entirely in your browser. Your files are never uploaded to our server.
When to use it
Useful before uploading photos to a website with a file size limit, or when you want to shrink a batch of photos before emailing or backing them up, without changing their dimensions.
Compressing a PNG
PNG cannot be compressed by lowering its quality, so this tool converts it to JPG or WebP first and then lowers the quality. Choose WebP if you want to keep transparency, or JPG if you do not need it.
FAQ
- How much can I lower the quality?
- Use the slider anywhere from 1 to 100. Lower values make a smaller file but rougher image quality.
- Can I compress multiple images at once?
- Yes. Selecting several images compresses them all, and they are automatically bundled into a ZIP file when you download.