Image Compressor
Reduce JPG, PNG and WebP file size without uploading to a server.
Drag & drop an image here, or click to select
JPG, PNG, WebP supported
About this tool
Processing happens directly in your browser. No files are uploaded to the server.
Note: PNG compression is lossless by format β the quality slider affects JPG and WebP only. For PNG output, the file may not be smaller than the original.
Image Compressor reduces your photo file size using the Canvas API, entirely in your browser. Drag and drop a JPG, PNG or WebP image, adjust the quality slider and download the smaller version. No files are ever uploaded.
How to use
- 1 Drag and drop your image onto the upload zone, or click to select a file.
- 2 Adjust the quality slider (lower = smaller file, higher = better quality).
- 3 Choose the output format if you want to convert at the same time.
- 4 Compare the before/after sizes and click Download.
Frequently asked questions
Does PNG compression lose quality?
PNG is lossless by format. The quality slider mainly affects JPG and WebP output.
Is there a file size limit?
Very large images may be slow to process depending on your device.
Are my images uploaded?
No. All processing uses the Canvas API locally in your browser.
Can I convert format and compress at the same time?
Yes. Select a different output format in the selector to convert and compress simultaneously.