Image Compressor
Reduce JPEG & PNG file sizes instantly — up to 90% smaller. Nothing leaves your browser.
Compress Image
Free Online Image Compressor — No Upload Required
This tool compresses images entirely inside your browser using the HTML5 Canvas API. Your photos never leave your device — there's no server involved at all. Whether you need to reduce a large JPEG for a web page, shrink a PNG for an email attachment, or create a smaller WebP for better Core Web Vitals scores, this compressor handles it instantly.
Adjust the quality slider to balance file size against visual quality. A setting of 70–80% typically delivers a 60–80% reduction in file size with no visible loss of quality to the human eye.
Frequently Asked Questions
Does this tool upload my images to a server?
No. Everything runs in your browser using JavaScript and the Canvas API. Your images never leave your device, making this completely private and GDPR-friendly.
What image formats are supported?
You can upload JPEG, PNG, and WebP images. You can also choose a different output format — for example, converting a PNG to WebP for smaller file sizes.
What quality setting should I use?
For web images, 75–85% is the sweet spot: typically 50–80% smaller file size with no perceptible quality loss. For print or archival use, stay above 90%.
Is there a file size limit?
The tool handles images up to 20 MB. Very large images may take a second or two to process depending on your device.
Why should I compress images?
Smaller images load faster, improve Core Web Vitals scores, reduce bandwidth costs, and improve SEO rankings. Google PageSpeed Insights specifically flags uncompressed images as a performance issue.
More Image Tools