To compress an image, open the Image Compressor, choose a JPEG or WebP file and lower the quality slider; the tool shows how much size you saved. It runs in your browser so your image stays private.
Follow along with the free Image Compressor, which runs in your browser, or browse more tools in this category.
How to use the Image Compressor
- Choose your image.
- Adjust the quality setting.
- Compare the new size with the original.
- Download the compressed image.
Worked example
A 3 MB photo saved at around 75 to 80 percent quality often drops to a fraction of its size with little visible difference.
Tips and common mistakes
- Lower quality means a smaller file but more visible artifacts, so find the balance by eye.
- WebP usually gives smaller files than JPEG at similar quality.
- Resize very large images first for a bigger saving.
Frequently asked questions
Does compression reduce quality?
Lossy compression does, but moderate settings are hard to notice.
Is it uploaded?
No. It never leaves your browser.
Which format is best for the web?
WebP or JPEG for photos, PNG for graphics needing transparency.