Image Resizer to KB – Compress or Increase Image Size
Just type the size in KB. The tool makes your photo smaller, or exactly that big. Nothing is uploaded.
Advanced (optional): exact pixels or minimum KB
Many forms ask for pixels as well as KB. Leave empty if yours does not. Examples are common sizes only – always use the size your form states.
✅ Done! Your images are ready
Resize an image to an exact size in KB
Many online forms accept images only within a size range, such as 20KB for a signature or 100KB for a document. Percentage sliders do not help, because you cannot tell what size you will get. Here you type the number you need and the tool works toward it.
⬇️ Compress to KB
Finds the best JPG quality that fits under your limit, and shrinks pixels only if it has to.
⬆️ Increase to KB
Pads your JPG to exactly the KB you type, for forms with a minimum size. The picture is not changed.
🔒 Private
Everything runs in your browser. No upload, no signup, no watermark.
How it works in 3 steps
- Select one or many photos.
- Type the size in KB and pick Compress or Increase.
- Download the result, or one ZIP for many files.
Popular sizes
- Compress Image to 20KB
- Compress Image to 50KB
- Compress Image to 100KB
- Compress Image to 200KB
- Increase Image Size to 20KB
- Increase Image Size to 50KB
- Increase Image Size to 100KB
- Increase Image Size to 200KB
- Resize Signature to 20KB
- Passport Size Photo to 50KB
- Passport Photo to 100KB
- Compress PNG to 50KB
- Compress JPG to 20KB
- Compress iPhone HEIC Photo to 100KB
- Compress WebP to 100KB
- Reduce Photo Size in KB on Mobile
- Reduce Image Size in KB
- Increase Image Size in KB
- Photo Ka Size KB Mein Kam Kaise Kare
- Photo Ka Size KB Mein Kaise Badhaye
Pick a ready-made size page
Compress image to a smaller size
Increase image size to a larger size
Signature, passport photo, formats and more
Frequently asked questions
How do I resize an image to a specific KB?
Select your image, type the size in KB, choose Compress or Increase, and press the green button. Compress keeps the file under your number; Increase makes it exactly that number.
What is the difference between Compress and Increase?
Compress makes a large file smaller by lowering JPG quality and, when needed, pixel dimensions. Increase takes a small file and adds invisible padding so it reaches a minimum or exact size, without changing how the picture looks.
Is 1MB equal to 1000KB or 1024KB?
Computers use 1MB = 1024KB. In Compress mode the tool stays under the KB you type counted in 1,000-byte units, so the file passes under either counting method. Increase mode makes the file exactly your KB in 1,024-byte units.
Which formats can I use?
JPG, PNG, WebP and iPhone HEIC photos. The result is always a standard JPG.
Are my photos uploaded anywhere?
No. All processing happens inside your browser, so your pictures never leave your device.
Want a quality percentage instead? Use the image compressor.