Compress Image
Reduce JPG, PNG or WebP file size with a quality level you choose.
Output format
Images are processed entirely in your browser and never uploaded.
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About this tool
Compressing an image re-encodes it at a lower quality so the file gets smaller — useful for faster page loads, email attachments and upload limits. Choosing WebP usually gives the smallest file at a given quality.
This tool works entirely in your browser on a canvas; the image is never uploaded, and you see the before/after size before downloading.
How to use it
- Add a JPG, PNG or WebP image.
- Pick an output format — WebP is usually smallest, JPEG is the most compatible.
- Drag the quality slider (lower = smaller file).
- Compress, compare the sizes and download.
Common problems
- PNG output did not get smaller.
- PNG is lossless, so the quality slider does not apply. For photos, switch the output to JPEG or WebP for a real size reduction.
- The image looks blocky.
- You lowered the quality too far. Raise the slider until the artefacts disappear.
Frequently asked questions
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