Quality removes detail
JPG and WebP can trade detail for fewer bytes. Start high, then inspect the downloaded copy before reducing quality further.
Image compressor
Make JPG, PNG and WebP files smaller. Choose a quality or a target size, then compare what actually comes back. Free, with nothing uploaded.
Compare the file sizes
Choose your images and settings, then process the batch. Your downloads will appear here.
How to use it
Choose your images
Select up to 10 JPG, PNG or WebP files. The selected batch replaces the previous one; the originals on your device stay untouched.
Set quality or a target
Use quality for a quick smaller copy, or enter the maximum KB a website accepts. Reduce the longest side when quality alone is not enough.
Check the actual size
Each result shows its old and new file size. Download an individual image or the whole batch as a ZIP.
What changes the file size
Dimensions remove pixels
A smaller longest side often saves more than a lower quality setting. The picture stays in proportion, and small files are never enlarged.
Format changes the tradeoff
PNG keeps pixels losslessly but can be large for photographs. JPG adds a white background; WebP can keep transparency at an adjustable quality.
Need a different step? The image format converter handles that in your browser too. For iPhone HEIC files, start with the HEIC to JPG converter.
Common questions
Will every image become smaller?
No. Some images are already well compressed. If the format and dimensions stay the same and our copy is larger, we keep your original file and say so. Changing format or dimensions can still make a file larger; the result shows the actual sizes.
Can I compress an image to 500 KB?
Choose Target file size and enter 500. The tool tries lower quality for JPG and WebP while keeping your selected dimensions. If it cannot reach 500 KB, the result says so. Reduce the longest side or switch from PNG to JPG or WebP, then try again.
Why does the quality slider not change PNG?
PNG uses lossless compression and has no lossy quality setting in this tool. Fewer pixels can make it smaller. Converting a photograph to JPG or WebP usually gives you more control over file size.
Will compression change my picture?
Reducing JPG or WebP quality discards detail. Reducing the longest side removes pixels but keeps the whole picture in proportion. Original format preserves transparency; JPG fills transparent areas with white. Download a copy and inspect it before replacing your original.
Are metadata and animation preserved?
An original file kept because it is already smaller stays unchanged, including metadata and animation. A re-encoded copy does not preserve the original metadata or animation: it becomes a still image. Use the original if those matter.
Does the image leave my device?
No. The browser reads, processes and saves your files locally. There is no account or daily limit. You can choose up to 10 images, 20 MB each and 100 MB total. Images over 20 megapixels are refused to limit memory use.
Read our privacy policy and terms of use.