Smart Image Optimizer
Choosing between PNG, JPG and WebP — and picking a quality number — is guesswork for most people. This tool measures your image first: how much fine detail it contains and how many distinct colours it uses. Then it picks the format and quality that give the smallest file without visible loss.
Flat images with few colours usually compress better as lossless PNG. Detailed photographs do far better as WebP. Highly detailed images can accept more compression because fine detail is less noticeable at normal viewing size.
After processing, the tool tells you exactly why it made that choice, including the measured detail and colour numbers.
Your images never leave your device. All processing happens locally in your browser.
How to use
- Drop your image into the box above.
- Adjust the target size, width or output format.
- Click download — the file is created on your device.
Frequently asked questions
Is this actually AI?
It is content-aware analysis rather than a neural network: the tool measures edge density and colour count on your image, then applies rules derived from how each format behaves. No model is downloaded, so it runs instantly and offline.
Why does it sometimes choose PNG?
PNG is lossless and very efficient on flat images with few colours — logos, screenshots, simple graphics. On those, PNG beats WebP on file size.
Can I still set the quality manually?
Yes. If you prefer manual control, use the image compressor tool, which exposes the quality slider and a target size in kilobytes.
Does it work offline?
Yes. There is no model to download, so the whole process runs locally once the page has loaded.