Compress Image to 20KB Maximum Compression
Compress any image to under 20KB for the absolute smallest file sizes. Images at 20KB load instantly even on the slowest connections, making them perfect for email signatures, micro-thumbnails, loading placeholders, and bandwidth-constrained applications.
Drop an image here or click to browse
Upload your image — target size is preset to 20 KB for this page. You can adjust it on the next step.
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How It Works
Upload
Add the image that must fit under a size limit.
Confirm target size
This page pre-fills 20 KB — change it if your form requires a different limit.
Compress to target
We find the best quality that keeps the file at or below your target.
Download
Upload the result to your application or email.
How to compress an image online
Open the tool above, upload your image (JPG, PNG, WebP, HEIC, AVIF, and more), adjust the settings, and preview the result in your browser. When you are happy with the output, click Download to save it to your device or Share to get a temporary link. No account is required, and you can process up to 10 images per batch.
Why use imageresize.cc for image compression?
- Free and fast — no signup, no watermarks, no daily caps on batches.
- Private by default — preview and editing happen in your browser; files are only uploaded if you choose Share.
- Works on any device — phone, tablet, or desktop with a modern browser.
- Batch-friendly — queue up to 10 images (10 MB each), export, then start your next batch.
Tips for Compress Image to 20KB — Maximum Compression
For ultra-small targets, start with a modest resolution and prefer JPG or WebP. Strip unnecessary metadata and avoid enlarging the image before compression.
Need a different workflow? Browse our full tools directory for resize, compress, convert, crop, and social-media presets.