Free online image compressor — reduce the file size of any JPG, PNG, or WebP image for email submissions, course portals, or web uploads. Choose quality level and output format. Your image never leaves your browser.
Last updated: April 2026 · Powered by Canvas API
Drop your image here or click to browse
JPG, PNG, WebP, GIF supported
Max file size: 20MB
Compression Options
Compressing...
Original
Compressed
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Original Size
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Compressed Size
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Size Reduction
Compressed Image Ready!
Your image has been compressed. Click to download.
Privacy guaranteed: Image compression runs entirely in your browser using the HTML5 Canvas API. Your image is never uploaded to any server.
How It Works
1
Upload your image (JPG, PNG, WebP, GIF)
2
Choose quality level and output format
3
Click Compress — image is re-encoded in your browser
4
Preview both versions and download the smaller file
Large image files slow down websites, fail upload limits on university portals, and clog email attachments. Our free image compressor reduces JPG, PNG, and WebP file sizes by up to 85% — without visible quality loss — using your browser's native Canvas API. No upload, no server, no account.
You choose the output quality (1–100%) and output format. The tool processes images instantly on your device, so there is no waiting and no privacy risk. Download the compressed version in one click.
Students use this to resize profile photos for university applications, compress scanned documents before converting to PDF, reduce image attachments for emails, and optimise images for personal websites and portfolios.
Frequently Asked Questions
Is this image compressor free?
Yes — 100% free with no sign-up, no watermarks, and no paid tier. It runs in your browser using the Canvas API.
What image formats are supported?
You can upload JPG, PNG, WebP, and GIF images. Output can be saved as JPEG or WebP.
Are my images uploaded to a server?
No. All compression happens inside your browser using the HTML5 Canvas API. Your image never leaves your device.
What is the difference between quality levels?
Low (40%) gives the smallest file size with visible quality reduction. Medium (70%) balances size and quality well for most uses. High (85%) keeps quality close to the original with modest file size reduction.