Compress Image
Reduce your image file size instantly in your browser — no server upload needed. Supports JPG, PNG, and WebP. Adjust quality freely.
Compression Result
FAQ
Is my image uploaded to a server?
No. Everything runs locally in your browser using the HTML5 Canvas API. Your image never leaves your device.
Which image formats are supported?
You can upload JPG, PNG, and WebP images. You can also choose to save the output as JPEG, PNG, or WebP regardless of the input format.
What quality setting should I use?
For most photos, 70–85% offers an excellent balance between file size and visual quality. For web thumbnails or previews, 50–65% is often sufficient. Use 90%+ if you need near-original quality.
Why doesn't PNG compression reduce the file size much?
PNG uses lossless compression, so the quality slider has no effect. To get a significantly smaller file from a PNG, convert it to JPEG or WebP using the output format selector.
What is WebP and when should I use it?
WebP is a modern image format developed by Google. It typically produces files 25–35% smaller than JPEG at the same quality. Use it when you need web-optimized images and your target browsers support WebP (all modern browsers do).
Will the image dimensions change?
No. This tool only adjusts the compression quality and output format. Image dimensions remain unchanged. Use a resize tool if you need to change dimensions.