Free JPG & WebP Image Compressor Tool Online
Compress JPEG and WebP images online with adjustable quality settings and instant file size comparison.
IN: Image file · OUT: Compressed image · RUNS: 100% in your browser
Frequently asked questions
Is my photo uploaded to a server?+
No, compression happens entirely in your browser using the Canvas API. Your image file never leaves your device, which also means there's no upload wait time.
What's the difference between JPEG and WebP output?+
WebP typically achieves smaller file sizes than JPEG at similar visual quality and is supported by all modern browsers, while JPEG has universal compatibility including very old software.
Will compression reduce image dimensions?+
No, this tool only reduces file size through compression quality, keeping the original width and height. For resizing, you'd need a separate resize step.
What quality setting should I use?+
70-80% quality is a good starting point that significantly reduces file size with minimal visible quality loss for most photos; drop lower for thumbnails or previews where size matters more than fidelity.
Can I compress PNG images with transparency?+
This tool outputs JPEG or WebP, and JPEG does not support transparency — transparent areas will be filled with a solid background when converting from PNG. Use WebP if you need to preserve transparency.
Is there a file size limit?+
Since compression runs in your browser's memory, very large images (dozens of megapixels) may be slow on lower-powered devices, but typical photos compress in well under a second.