What is Image Compressor?
Free online image compressor. Compress PNG and JPG images with adjustable quality. Live before/after preview. Suitable for web optimization and email attachments. Browser-based.
▶Use Cases4 scenarios
- ◆Web image optimization
- ◆Email attachment compression
- ◆Storage savings
- ◆Upload limit adaptation
▶How to Use4 steps
- 1Upload image
- 2Adjust compression quality
- 3Preview comparison
- 4Download compressed image
▶Features4 features
- ✓PNG/JPG support
- ✓Adjustable quality
- ✓Before/after preview
- ✓Browser-based
▶FAQ7 questions
What is Image Compressor?
An online image compressor. Compress PNG and JPG images. Supports multiple input formats with one-click copy or download. All operations run locally in your browser — no uploads.
Does compression reduce quality?
At high quality settings, loss is nearly imperceptible. Low quality shows visible changes.
Does it support batch compression?
Currently one image at a time.
What image formats are supported?
Supports PNG and JPG. PNG uses lossless or lossy compression; JPG uses lossy compression.
How large of an image can I use?
Up to 10MB per file, resolution limit 4000×4000px.
Are images uploaded to a server?
No. All processing happens locally in your browser. Images never leave your device.
Can I process multiple images at once?
Currently one image at a time.