About the Image Compressor
Shrink JPG, PNG and WebP images by up to 80% with no visible quality loss. Set the maximum size or quality, compress many images at once, and download them as a ZIP.
Key features
- Compress JPG, PNG and WebP images
- Adjustable quality and optional maximum width/height
- Optionally convert to JPG or WebP while compressing
- Keeps your original if compression wouldn't make it smaller
- Batch compression with ZIP download
- Runs in a background thread in your browser; no upload
Shrink images without visible quality loss
Modern phone cameras produce photos of 3–10 MB, far bigger than needed for websites, email, chat or document uploads. Oversized images slow down pages, fill storage and get rejected by upload limits. The Image Compressor reduces file size dramatically while keeping images looking the same.
Two ways to make images smaller
- Compression (quality): removes detail the eye can't easily see. Controlled by the Quality % setting.
- Resizing (dimensions): a 4000 px photo displayed at 1200 px wastes ~90% of its pixels. Set Max width/height to downscale.
Combining both gives the biggest savings.
Recommended settings
| Goal | Quality | Max width/height | Format |
|---|---|---|---|
| Website hero image | 75–80% | 1920 | WebP |
| Blog / article image | 75% | 1200 | WebP or JPG |
| Product photos | 80% | 1600 | WebP |
| Email attachment | 75% | 1600 | JPG |
| Social media | 85% | 2048 | JPG |
| Archive / print | 90% | 0 (keep) | Same as input |
Why image size matters for SEO
- Core Web Vitals: images are usually the Largest Contentful Paint element; smaller files improve LCP.
- Mobile users on slow connections abandon slow pages.
- Google PageSpeed Insights flags oversized and unoptimized images.
- Hosting and CDN costs drop with smaller files.
How it works
Compression runs in a Web Worker, a background thread in your browser, so the page stays responsive even with large batches. Photos are never uploaded. If compression wouldn't make a file smaller (for example, an already-optimized image) and the format isn't changing, the original is returned unchanged.
Related tools
Convert to a modern format with JPG to WebP, convert iPhone photos with HEIC to JPG, or reduce PDF size by converting images before using JPG to PDF.
How to use the Image Compressor
- Drag and drop your files into the upload area, or click Choose files.
- Set any options, such as quality, page size or page ranges.
- Click the convert button. Processing happens right in your browser.
- Download each result individually, or all of them as a ZIP.