Processing happens locally, so your photos stay on your device.
Finding the right balance
JPG is a lossy format, which means smaller files trade away a little detail. The quality slider puts that trade in your hands.
For most web images a mid to high setting removes weight you will never notice, while keeping edges and skin tones smooth.
How to use it
Drop in a JPG and set the quality. The size saving and preview update so you can judge the result before saving.
Download the lighter JPG when it looks right. Adjust and re-run as often as you like at no cost.
Where the savings come from
JPG discards fine detail that the eye barely registers, especially in busy textures like foliage or gravel. Those areas shrink the most.
Flat regions such as skies compress well too, though pushing too far can introduce visible blocks, so watch the preview as you go.
Frequently asked questions
How small should I go?
For web use, aim for the lowest quality that still looks clean on your screen. Around three quarters quality is a common sweet spot.
Will compressing twice hurt the image?
Repeated lossy saves add up, so compress from the original once rather than re-compressing an already compressed file.
Does it strip photo metadata?
Re-encoding drops most embedded data such as camera info, which also helps privacy and shaves a little size.
Can I compress a whole album?
This tool works one image at a time so you can tune each result, which suits the photos that matter most.