Are my images uploaded to a server?

No. OPTIMIZE IMAGE runs the entire compression inside your browser using the Canvas and Blob APIs. Your photo never leaves your device, so there is nothing for us to store, log or leak.

Does it work offline?

Once the page has loaded, the compression itself needs no network connection at all.

Is it really free and unlimited?

Yes. There is no sign-up, no watermark and no per-file limit. Because the work happens on your own device, there are no server costs to pass on to you.

Compress an Image on Your Phone

No app store detour required. Open this page in Chrome or Safari, tap the upload area, pick a photo from your gallery or camera, and download the compressed copy to your device.

Because processing is local, it works on patchy mobile data and uses no upload bandwidth at all.

Image Compressor

Runs on your device — no upload

Drop an image here

or click to browse, or paste from your clipboard with Ctrl/Cmd + V

JPG · PNG · WebP · AVIF · BMP · GIF — up to 40 MB

Step by step on mobile

The whole flow takes under a minute.

Tap the drop zone and choose Photo Library or Take Photo
Pick a preset target size, or a Smart quality level
Watch the live progress, then tap Download
The file saves to your Downloads or Photos, ready to attach

Saves your data plan

Traditional compressors upload your photo and send it back — twice the data. Here the bytes never leave the handset.

Frequently asked questions

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