How much can JPG compression reduce file size?
Typically 50-80% at quality 60-80. The real-time estimate shows exactly how much you'll save before compressing.
All Tools
JPG Compressor
Compress JPG images with fine-grained quality control. See the compression ratio in real time.
Current scope
This tool currently processes one image at a time in your browser. The current file limit is 20MB. This statement covers the current /tools image flow, including poster-prefilled entries, not every feature on poster.sh.
Drag & drop an image here, or click to browse
Supports JPG
Max file size: 20MB
How to compress a JPG
- 1
Upload a JPG file
Select the JPG image you want to compress.
- 2
Adjust quality
Use the slider and watch the real-time size estimate.
- 3
Download compressed JPG
Save the smaller file to your device.
JPG Compression FAQ
What quality level should I use?
For web and social media, 70-80% is usually ideal. For print, use 90-95%. The preview helps you decide.
Is this different from the general image compressor?
Yes. This tool is optimized specifically for JPG with a real-time compression ratio display and finer quality control.
Is my image uploaded anywhere?
No. All compression happens in your browser using the Canvas API. Your images stay on your device.
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