The DreamImage AI image compressor shrinks image file size while keeping it sharp. Drag the slider between "Smallest" and "Best quality" and instantly see the compressed size and how much you saved. Everything runs locally in your browser, so your images are never uploaded.
How to compress an image online
- 1 Upload the image you want to compress (PNG, JPG or WebP).
- 2 Drag the compression strength slider to balance file size and quality.
- 3 Compare the original and compressed versions, then download the smaller file.
Features
Adjustable strength
Go from smallest file size to best quality depending on whether the image is for the web, chat or archiving.
Instant savings report
See the new file size and percentage saved right after compression.
Keeps the original format
A JPG stays a JPG and a PNG stays a PNG.
Local, multi-threaded
Compression uses a web worker in your browser — fast and private, with no upload.
Popular use cases
- Lighter images for websites and blogs to speed up page loads.
- Meeting upload size limits on application and registration forms.
- Shrinking phone photos before sending them by email or chat.
- Saving cloud and local storage space.
Frequently Asked Questions
Are my images uploaded to a server?
No. Compression happens entirely in your browser and your images never leave your device.
Which formats can I compress?
JPG/JPEG, PNG and WebP are supported, and the original format is preserved.
Will the image dimensions change?
Images whose longest side is over 1920 pixels are scaled down proportionally to 1920 pixels for better compression. Smaller images keep their original dimensions.
How much smaller will my image be?
It depends on the image content and the strength you choose; photos are often reduced by half or more.