Send useful, clear photos without oversized attachments.
Exact size image compressor
Compress a photo to 500KB
Shrink a high-resolution photo to under 500KB for faster uploads without manually adjusting quality.
No sign-up. Your image stays on your device.
Reduce image weight before uploading to a CMS or landing page.
Meet a mid-size upload limit without testing several compressors.
How to compress an image to 500KB
Upload directly above with 500KB selected. A successful result is at or below 512,000 bytes (500 × 1,024). If your upload requires fewer than 500,000 bytes, choose the 488KB option. Quality and dimensions may change, so check each result before uploading.
- The compressor on this page starts with 500KB selected. Change it only if your upload requires another limit.
- Upload one image or up to 10 images at once.
- Download the optimized image and check its dimensions and file size before uploading.
Read the full guide: how to compress a photo to 500KB
Why use an exact-size compressor?
Many upload forms reject files for being only slightly too large. TargetKB works backwards from your requested limit, automatically balancing image dimensions and JPEG quality instead of asking you to guess a quality percentage.
Check byte limits, output quality and format limitations if your upload is still rejected.
Frequently asked questions
How do I make a photo 500KB?
Upload the photo, select the 500KB target, and download the optimized result. TargetKB adjusts image dimensions and quality only as much as needed.
Does TargetKB keep the original aspect ratio?
By default, compression keeps the original proportions and does not crop. Center crop to square is optional. When resizing, keep aspect ratio enabled to avoid stretching.
Can I use a 500KB image on a website?
Yes. It is a practical upper limit for many individual web images, though the best size depends on the page and image dimensions.
Do I need to register?
No. The image compressor is currently free and does not require an account.