Compress JPG
JPG is lossy: dropping quality from 100 to around 75 usually cuts more than half the weight with no visible difference. Re-compressing the same file repeatedly, though, stacks up artefacts.
How to use
- 1Upload the file that needs to be lighter.
- 2Adjust quality and optionally the scale — the final size updates instantly.
- 3Download the compressed version.
What it's for
Heavy photos
5 MB phone photos routinely drop below 1 MB.
Live size
Final weight updates as you move the quality slider.
Email attachments
Easy to get under sending limits without cropping.
Frequently asked questions
Which quality should I pick?
70–80 is the common range: a good balance of weight and appearance.
Can I compress the same JPG twice?
Avoid it. Each pass adds permanent artefacts — always start from the original.
Does scaling down help?
A lot. If the image displays small, reducing dimensions beats lowering quality.