Resize your image size to 20 kB. Supports JPG, PNG, and WebP image formats.
Your files never leave your device. All compression happens locally in your browser.
Compressing images to 20 kB with MB2kB takes just a few steps. Here is how it works.
Drag and drop your image into the upload area above, or click to browse files from your device. MB2kB supports JPG, PNG, and WebP formats.
The target size is already set to 20 kB for this page. You can adjust it if needed by entering a different number.
Click the Compress button and wait a moment. The tool processes your image right inside your browser, so nothing gets uploaded to any server. Once it is done, compare the before and after results, then click Download to save the compressed image.
20 kB is one of the smallest file size requirements you will come across, and it comes up more often than you might think. The most common use case is government exam portals in India. Websites for SSC, IBPS, and various state PSC exams typically ask for signature uploads under 20 kB. The signature image needs to be small, clear, and within the limit, otherwise the form just rejects it.
Thumbnail images for web pages and apps also often need to stay under 20 kB. If you are building a forum, a listing site, or any kind of directory, keeping profile thumbnails and avatars small means faster load times across the board.
Email signatures are another area where 20 kB makes sense. A large image embedded in every email adds up quickly, especially in corporate environments where people send hundreds of emails a day. Keeping your email signature graphic under 20 kB keeps things fast and professional.
If you need something a little larger, check out the compress image to 50 kB tool, which works well for passport photos and government ID uploads.
Getting a good result at 20 kB is about managing expectations and making smart choices before you compress. The single most important thing you can do is resize your image to smaller dimensions first. A 3000x4000 pixel photo compressed to 20 kB will look much worse than a 200x200 pixel image at the same file size. The tool has to fit all that pixel data into very few bytes, and something has to give.
For signature uploads and simple document scans, 20 kB is usually fine. The images are small to begin with, and there is not a lot of fine detail that compression can destroy. For photos of people or landscapes, the quality will be noticeably lower, but often still acceptable for form submissions where the portal just needs to verify a face or signature.
JPEG format handles photos better than PNG at this file size. If your image is a photo, make sure you are working with a JPEG before compressing. PNG files can end up larger than expected at aggressive compression settings.
mb2kb is an online Image Compressor tool that allows you to compress image files to a specific size with ease. It’s ideal for optimizing images for web, emails, or online forms.
Yes, mb2kb is a completely free tool. There are no usage limitations it.
No, mb2kb is a web-based Image Compressor. The image is compressed right inside your web browser.
Upload the image you want to compress, choose the desired size, and click the “Compress” button. Your compressed image will be ready for download within seconds.
We currently support compressing images in JPEG, PNG and WebP formats.
We don’t upload any images to our server for processing. The entire compression happens locally inside your web browser. Your images never leave your device.
We don’t upload any images to our server. All processing happens locally and we don’t store any image data.
It depends on the photo dimensions. For small images like passport photos (200x200 pixels) or signature scans, 20 kB can produce a reasonably clear result. For larger photos with lots of detail, the quality loss at 20 kB will be more noticeable. Keeping the image dimensions small helps a lot.
Several Indian government exam portals ask for images around 20 kB, especially for signature uploads. SSC, IBPS, and some state PSC portals typically need signature images between 10 and 20 kB. Photo requirements are usually a bit higher, around 20 to 50 kB.
For photos and portrait images, JPEG is the better choice at 20 kB because it handles photographs more efficiently. PNG is better for simple graphics with flat colors, but for most real world photos, JPEG will give you better visual quality at such a small file size.