Image Compressor
Shrink JPEG, PNG, and WebP file sizes right in your browser with a quality slider and a live size comparison. Faster pages and lighter uploads, without uploading the images to anyone else's server.
How to use the Image Compressor
- Drop or select the image you want to compress.
- Move the quality slider and watch the estimated size change.
- Compare the compressed preview against the original.
- Download the smaller version when the balance of quality and size looks right.
When the Image Compressor is useful
- Getting photos under attachment or upload size limits.
- Lightening hero images and gallery pictures for faster page loads.
- Compressing batches of screenshots for documentation or tickets.
- Preparing web-optimized images without desktop software.
How the Image Compressor works
Compression re-encodes the image with the browser's native canvas and encoder pipeline, trading a little fidelity for a much smaller file, with JPEG and WebP typically winning on photographs and PNG on flat graphics. The tool reports before and after sizes so the trade-off is explicit, and you can iterate on the quality setting until the result fits your budget. The image never leaves your device, which keeps personal or client photos private.
Limits to keep in mind
Aggressive settings introduce visible artifacts, especially on text and sharp edges; re-check the preview at your chosen quality before exporting.
Frequently asked questions
What quality setting should I use?
For photos, settings around 70 to 80 usually cut size substantially with little visible difference.
Which format compresses best?
WebP often leads for photos, JPEG remains universally compatible, and PNG suits graphics with few colors.
Are my images uploaded during compression?
No. Encoding happens in your browser, so nothing is transmitted.
Last reviewed: October 2026.