Compress JPG
Free online JPG compressor that runs entirely in your browser — files are never uploaded. Adjust quality and compare sizes before and after.
About this tool
This JPG compressor significantly reduces file size while keeping good visual quality — ideal for websites, email attachments and social sharing. Everything is processed locally in your browser, so your images never leave your device.
How to use
- Click or drag to select a JPG image
- Adjust the quality slider (lower means smaller file)
- Compare the file size before and after
- Click download to save the compressed image
FAQ
Does compression reduce image quality?
JPG is a lossy format, so some quality is traded for size. Between 70% and 85% quality the difference is barely visible, while file size often drops by more than half.
Are my images uploaded to a server?
No. All compression runs locally in your browser. Your files never leave your device.
How large an image can I compress?
It depends on your device memory, but images of tens of megabytes usually process smoothly.
Can I use an iPhone HEIC or HEIF photo?
Yes. HEIC and HEIF photos are decoded locally in supported modern browsers and exported as JPG, PNG or WebP.
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