Compress JPG Images
Make JPG photos lighter for email, forms, and websites while you control the balance between file size and visual quality.
How to compress JPG Images
- 01.
Add your JPG photos.
- 02.
Move the quality slider; the estimated size updates as you go.
- 03.
Process, compare the real sizes, and download.
How JPG compression works
JPG discards detail the eye barely notices. Lowering the quality from 100 to around 70–85 usually cuts the file size a lot with little visible change; lower values shrink files further but can show blocky artifacts.
Meeting an upload limit
Forms often limit uploads to 1 or 2 MB. Try a lower quality first. If the photo is very large in pixels, as most phone photos are, resizing it before compressing is usually the most effective way to reach the limit.
Which quality to choose
The slider sets the JPG quality. A practical guide:
| Quality | Good for | What you see |
|---|---|---|
| 90–100 | Printing and archiving | No visible change; small savings |
| 75–85 | Websites, email, social media | Looks natural; much smaller file |
| 60–70 | Thumbnails and previews | Fine textures get softer |
| Below 50 | Only when size is critical | Blocky areas and halos around edges |
Common problems and how to fix them
The photo barely got smaller
It was probably saved with strong compression already. Reduce its dimensions with Resize; fewer pixels save far more.
I see blocks or halos around edges
The quality is too low for this photo. Raise it to 75–85 and process again.
I need it under a specific size, such as 500 KB
Lower the quality step by step and check the real size shown after processing. For large phone photos, resize to about 2000 px on the long side first.
🔗 Keep going without uploading again
Big photo from a phone? Resize it first, then Compress: the chain keeps your files between tools.
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Frequently Asked Questions
We answer your questions about privacy, features, and limits.