Image Compressor
Reduce image file size by adjusting JPEG/WebP quality. Runs 100% in your browser.
Frequently Asked Questions
Is my image uploaded to a server?
No. Compression runs entirely in your browser. Your image never leaves your device.
Which formats are supported?
Input: any image format your browser can decode (JPG, PNG, WebP, GIF, BMP). Output: JPEG or WebP (lossy compression). PNG does not benefit meaningfully from this tool.
What quality setting should I use?
80% is a good default for photos — significant size reduction with minimal visual difference. Drop to 60-70% for thumbnails. Use 90%+ if the image has fine detail you want to preserve.