Help & FAQ

To compress image size online, drag and drop your photo into onlinecompressimage.com. Select your desired preset (e.g. 50 KB, 100 KB, 200 KB, or Custom Quality) and click 'Compress Images'. Download your compressed photo instantly with zero server uploads.

Open onlinecompressimage.com in your mobile browser (Safari, Chrome, or Firefox). Tap 'Browse Files', select photos from your iPhone or Android gallery, choose your target KB size, and tap compress. No app installation required.

On your laptop or computer, drag and drop single photos, multiple files, or `.zip` folders directly into our browser compressor. Adjust resolution or target KB limits and click 'Compress Images' to download your optimized files.

Upload your JPG or JPEG photo to our compressor. Our browser engine optimizes quantization tables and strips bloated EXIF camera metadata to reduce JPG file size up to 80% while retaining sharpness.

Select the '50 KB' or '100 KB' preset pill. For specific requirements like 20KB for passport or government forms, enter '20' in the target size input box. Our smart algorithm automatically computes the optimal canvas quality and dimensions.

To compress images without visible quality loss, convert your images to modern WEBP or AVIF formats or use an 80-85% quality setting. This removes redundant color bytes while preserving crisp edges.

In MS Paint, open your image, click 'Resize' on the Home tab, reduce the percentage or pixel width/height, and click 'Save As' JPEG. For automatic target size compression, use onlinecompressimage.com directly in your web browser.

Drag and drop your `.zip` archive or select multiple photo files simultaneously. Our tool extracts all images in browser memory, compresses each file to your target KB budget, and lets you download a single re-zipped file.

Yes! It is 100% free with no registration, no file caps, and zero server uploads. All image calculations run locally in your web browser.