Compress JPEG
Reduce JPEG file size in your browser — free, private, no upload.
Drop images here
JPG, PNG, WebP, HEIC, GIF, BMP, AVIF, TIFF, ICO
Up to 10 files · 25 MB each · 80 MB total
Files stay on your device100% Private
ImageConverter never uploads your files. Conversion runs locally — verify zero network requests in DevTools.
Works Anywhere
Runs on Windows, Mac, Linux, and mobile. Chrome, Firefox, Safari, and Edge supported.
Best Quality
Adjust compression quality and convert between JPG, PNG, WebP, BMP, and HEIC.
How to
How to Compress JPEG Images
- Upload your JPEG images using Choose Files or drag and drop.
- Adjust the quality slider in Advanced settings (default 66).
- Click "Compress JPEG" and download your optimized files.
FAQ
Frequently asked questions
How much can ImageConverter compress JPEG files?
Typically 40–80% size reduction depending on the quality setting. Use the quality slider to balance file size and visual quality.
Are my JPEG files uploaded?
No. Compression runs entirely in your browser on your device.
What quality setting should I use?
Quality 66 is a good default for web use. Use 85–92 for print-quality photos. Lower values produce smaller files.