Image Size Checker
Check one image or a batch before upload. See exact bytes, KB or MB, format, width, height, aspect ratio, orientation, pixel count, and whether each file meets your limits.
Open toolFast private image compressor
Image Compressor to KB
Pick one image or a batch, choose 20KB, 50KB, 100KB, 200KB, or a custom target, and download measured results without a server upload.
Made for forms, IDs, profile photos, job portals, and any upload box that says the file is too big.
No server upload20KB, 50KB, 100KB, 200KBJPG, PNG, WebP
Image Compressor to KB
JPG, PNG, and WebP stay on your device.
Your images are processed locally in your browser and are not uploaded to our server.
Useful image tools
Pick the image tool that fits your upload rule
Image Compressor to 50KB
Add one image or a batch, keep the target at 50KB, compare the measured output, and download each result without sending files to a server.
Open toolImage Compressor to 100KB
Use this browser-based image compressor to prepare photos and documents for 100KB upload limits without sending files to a server.
Open toolImage Compressor to 20KB
Use this focused 20KB compressor when a portal rejects anything larger than a very small file. The tool works in your browser and keeps the image on your device.
Open toolImage Compressor to 200KB
Use the 200KB preset when you need a smaller file but still want a clearer photo, screenshot, or document image.
Open toolPNG to WebP Converter
Convert JPG, PNG, or WebP images to a fresh WebP file locally in your browser. Use it when you want a lighter image for web pages, forms, or sharing.
Open toolImage to Icon
Convert a photo or logo into square PNG icon sizes directly in your browser. Choose a size, preview the crop, and download.
Open toolCompress images to a target size in KB
Upload one image or a batch, choose a preset or enter the file-size ceiling from your form, and run the compressor. Every result shows the original size, output size, width, height, and preview before you save it. The broad homepage handles custom KB targets; dedicated pages explain the requirements and tradeoffs for individual 20KB, 50KB, 100KB, and 200KB searches.
Why target KB is easier than guessing quality
A normal quality slider makes you guess. This tool works from the size limit instead. It tries sensible quality levels first, then reduces dimensions only when needed. That usually gives a clearer image than dragging quality to the bottom and hoping the upload form accepts it.
Which format should you pick?
Use JPG when the website is old or strict. Use WebP when the website accepts modern files and you want a smaller result. Keep PNG for graphics or transparent images, but expect it to be harder to squeeze into tiny limits. The preview makes the tradeoff easy to spot.
A quick workflow that usually works
Check the image size first if you are unsure. Crop empty background if the subject is small. Then compress to the exact KB limit. If the form allows 200KB, do not force 50KB just because you can; using the allowed space keeps the image clearer.
Your images are processed locally in your browser and are not uploaded to our server.
Your image stays in your browser. No upload, no waiting for a server, no account just to make a file smaller.
FAQ
How do I compress an image to a target size in KB?+
Upload an image, choose a preset or enter a custom KB target, select an output format, and press compress. Download the result after checking its measured size and preview.
Will my image be uploaded?+
No. The image is processed locally in your browser and is not uploaded to our server.
Can every image reach the selected KB target?+
Not always without a visible quality tradeoff. Detailed images may need smaller dimensions or WebP output, and valid results can land below the selected limit.
Does it work on phones?+
Yes. The upload area, controls, preview, and download button are designed for mobile browsers.