Compress a screenshot
Choose a PNG, JPG, or WebP image, lower the quality, and download a smaller file without uploading it to a server.
Design tools
Image Compressor
Compress and convert PNG, JPG, and WebP images in your browser with quality and resize controls.
Output format
Compression and format conversion run in your browser. Images are not uploaded to the server. Change settings, then reprocess the image to create a new output.
Output preview
Choose an image to compress or convert it.
Output preview will appear here.
- Original
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- Output
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- Size
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- Format
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About image compression
Large images slow pages and make sharing heavier than necessary. This browser-side compressor can resize an image and export it as JPG, PNG, or WebP without uploading the file.
Common uses
- Compress screenshots before uploading
- Convert PNG or JPG images to WebP
- Resize large images to a smaller max width
- Compare original and output file sizes
Notes
PNG is lossless and may not shrink much for photos. JPG and WebP usually compress photos better, while WebP often gives the best size for web use.
Examples
Convert an image to WebP
Load a PNG or JPG image, choose WebP output, optionally set a max width, and compare original and output sizes.
FAQ
Does this image compressor upload my files?ShowHide
No. The image is decoded, resized, compressed, and exported in your browser using canvas APIs.
Which image formats are supported?ShowHide
The first version accepts common browser-readable PNG, JPG, and WebP images and exports JPG, PNG, or WebP output.
Why did my PNG get larger?ShowHide
PNG is lossless and can be larger for photos or complex images. Try WebP or JPG output when you want smaller photographic images.
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