Resize image in KB (target file size)
KB refers to file size, not dimensions. Use compression and downscaling to hit size limits like 100KB/200KB.
How to hit a KB target
- Lower quality slightly (JPG/WebP).
- Downscale dimensions if needed.
- Use WebP for best size/quality ratio.
Common limits
- 100KB for forms and uploads
- 200KB for email attachments
If quality collapses, reduce dimensions instead of over‑compressing.
3 steps (using this tool)
- Upload your image to the compressor.
- Set a target size (KB) and adjust quality.
- Downscale if needed and export locally.
Need pixel resizing too?
Resize dimensions first, then compress to hit the KB target.
FAQ
KB refers to file size or dimensions?
KB refers to file size, not width/height.
Quick tip: Use compression and downscaling to hit a KB target.
Common mistake: Changing only dimensions without compression—file size may stay large.
How do I resize image to 100KB or 200KB?
Lower quality slightly, then downscale if needed.
Quick tip: WebP usually hits KB targets with better quality than JPG.
Common mistake: Dropping quality too far—results look blocky.
Is there a KB size converter?
Yes—use the image compressor with a target size.
Quick tip: Adjust quality first, then dimensions.
Common mistake: Using PNG for photos—file size stays large.
Do you upload my images?
No. Processing happens locally in your browser. Your files are not uploaded.
What size should I use?
Use the recommended size.
Which export format should I use?
JPG for photos, PNG for text/logos or transparency, WebP for smaller files (if supported).
Crop vs Pad — what is the difference?
Crop fills the target size (may cut edges). Pad fits the whole image and adds background/space.
How do I protect text and logos?
Keep important content centered and avoid placing critical text at the edges.
Can I batch resize?
Yes. Use the Batch Resizer to apply the same size to many images.