Compress Images Without Losing Quality
Shrink JPG, PNG, and WebP files directly in your browser. Your images never leave your device — everything happens locally.
Drop images here, or browse
Supports PNG, JPEG, WebP, GIF, SVG, BMP
How to compress images with FileFlex
- Drop your images onto the upload area — JPG, PNG, or WebP all work.
- Choose your output format. WebP gives the smallest files; JPEG keeps universal compatibility.
- Drag the compression slider to 60–80% for the best size/quality balance.
- Optionally resize to further reduce file size.
- Click "Compress & Download" to get your optimized images.
Compression recommendations
- Website hero images: WebP at 80% quality — best balance
- Blog photos: WebP at 75% quality
- Email attachments: JPEG at 70% quality
- Thumbnails: 50% scale + WebP at 70%
- Print-ready: Keep original, don't compress below 95%
Frequently asked questions
Does compressing reduce image quality?
Yes, but at 70–85% quality, the reduction is generally invisible to the human eye. Below 60% you'll start noticing artifacts, especially in gradients and fine detail.
What's the best format for compression?
WebP. It produces files 25–35% smaller than JPEG at the same visual quality.
Are my images uploaded anywhere?
Never. All compression happens in your browser using your device's processor. Your files stay on your device.
Can I compress multiple images at once?
Yes — drop as many as you want. Multiple files are bundled into a ZIP for download.