How to use
- Drop images onto the box, paste from the clipboard, or click to choose files.
- Pick an output format (WebP usually gives the smallest files) and a quality — 75–85 is a good balance.
- Optionally set a maximum width or height; images are scaled down proportionally and never enlarged.
- Download each file, or click “Download all”. Changing a setting re-processes every image.
FAQ
Are my images uploaded?
No. Compression uses the browser’s own canvas encoder, so files never leave your device — useful for screenshots containing private data.
Why did my PNG get bigger?
Re-encoding an already optimized PNG rarely helps, and PNG ignores the quality setting. Convert to WebP (lossy or near-lossless) instead, or scale it down.
Is metadata such as GPS location kept?
No. Re-encoding through canvas drops EXIF data, including camera details and location, which is usually what you want before sharing a photo.