Image Tool
Compress Image to an Exact KB Size
Set the maximum file size your form allows and get the best possible quality that fits. Compress JPG, PNG, and WebP images to 20KB, 50KB, 100KB, or any size you type — all on your own device.
Compress Image to Exact KB
Set the maximum file size your form accepts and compress locally — nothing is uploaded.
Guide
How to compress an image to an exact KB size
Use this image compressor when an application form, exam portal, or government website refuses your photo because the file is too large. Instead of guessing at a quality slider, you type the exact limit the form asks for, such as 50 KB or 100 KB, and the tool finds the highest quality that still fits. Every image is compressed on your own device, so personal documents and photographs are never uploaded.
- 1
Add your images
Drag JPG, PNG, or WebP files onto the drop area, or choose them from your device. You can queue several images and compress them in one pass.
- 2
Enter the size limit
Type the maximum file size in KB, or tap a preset such as 20 KB, 50 KB, 100 KB, or 200 KB. These match the limits most exam and visa portals set.
- 3
Choose the output format
JPG gives the smallest files and is accepted almost everywhere. WebP compresses even better for websites. PNG stays lossless, so the size is reduced by shrinking dimensions instead.
- 4
Compress and download
Press compress and watch each file report its before and after size. Download one image at a time, or get everything at once as a ZIP archive.
Upload problems this compressor solves
- A form rejects your photo with a message like 'file must be less than 100 KB' and gives no way to fix it.
- Quality sliders on other tools make you guess repeatedly instead of hitting the size the form actually requires.
- Phone camera photos are 4 MB or larger, far above the limits used by exam and visa application portals.
- Scanned documents look fine but are far too heavy to attach to an email or an online application.
- You need several passport photos or certificates compressed to the same limit before a deadline.
Frequently asked questions
How do I compress an image to exactly 50 KB?
Add the image, tap the 50 KB preset or type 50 in the target field, keep the output on JPG, and press compress. The tool repeatedly re-encodes the image and settles on the highest quality that still lands under 50 KB.
Are my images uploaded to a server?
No. Compression uses the Canvas API inside your own browser, so the image data never leaves your device. That makes it safe for identity documents, certificates, and personal photographs.
What if the target size cannot be reached?
If even the lowest quality is still too large, the tool automatically reduces the pixel dimensions and tries again. If the target remains impossible, it tells you clearly and gives you the smallest version it could produce.
Will compressing reduce the image quality?
JPG and WebP are lossy formats, so some detail is lost as the file gets smaller. The tool always keeps the highest quality that fits your limit, so the loss is the minimum needed to meet the requirement.
Can I compress several images at once?
Yes. Add up to 30 images, set one target size, and compress them together. Each result shows its own before and after size, and you can download the whole batch as a single ZIP file.