About this tool
Make photos smaller for email, websites, WhatsApp or online forms with upload size limits. Choose JPG, WebP or PNG output, set the quality and a maximum width, then compare the original and compressed file sizes before downloading. Your images never leave your device.
How to use it
- Choose an image or drag it onto the box.
- Pick the output format, quality and maximum width.
- Check the new file size and preview, then press Download.
Good to know
- Images are processed by your browser and are never uploaded.
- Images are only ever scaled down, never enlarged, and the aspect ratio is kept.
- Converting a transparent PNG to JPG fills the transparent areas with white.
- HEIC photos from iPhones aren't supported by most browsers — set your camera to “Most Compatible” or convert to JPG first.
Frequently asked questions
Which format gives the smallest file?
WebP is usually smallest at the same visual quality, followed by JPG. PNG is lossless, so it's best for screenshots and graphics with text, but files are larger.
What quality should I use?
70–80% keeps photos looking sharp while cutting the size dramatically. Go lower for thumbnails, higher for printing.