Image compression
Shrink file size with a quality slider.
Files
0.8
About this tool
Shrink JPEG and PNG files with a quality slider that shows the trade-off as you move it. Compression runs on your own machine, so even sensitive images stay private.
Why use it
- Smaller files load faster and improve your page speed and Core Web Vitals.
- Fine-grained quality control instead of a fixed, lossy preset.
- Batch several photos and download each optimized result.
Common use cases
- Trim product photos before uploading them to an online store.
- Fit an image under a forum or email attachment size limit.
- Lighten blog images so mobile readers do not wait on slow downloads.
Tips
- Around 70–80% quality is usually invisible to the eye but cuts size sharply.
- Resize oversized photos first; dimensions affect file size more than quality.
How to use
- Select an image.
- Tune quality lower for smaller files.
- Download the JPEG result.
FAQ
- How does compression shrink my image?
- It re-encodes the picture at a smaller size and quality you control, cutting file size while keeping it usable.
- Are images sent to a server to compress?
- No. Everything is processed in your browser, so the original never leaves your device.
- Will the photo look noticeably worse?
- At moderate settings the difference is hard to see; lower quality only if you need a very small file.
- What size reduction can I expect?
- Photos often drop 60–80% depending on content and the target quality you choose.
- Can I compress PNG files too?
- Yes, though JPG and WebP usually compress photos far better than PNG.
- Is there a file size limit?
- There is no server limit; very large images just take a little longer to process locally.