SizeToKB
Reduce to KB

Size to KB · Free size reducer

Compress Image to 500KB

Compress image to 500KB online free — reduce photo or scan size to 500KB. Private browser tool.

Private · nothing saved On-device · no upload Free · no signup

Exact KB tool

Hit 500 KB max

Size reducer for compress image to 500KB / reduce photo size to 500KB — adjust min/max if your limit differs.

Settings

Select or drag & drop imageThen crop & rotate · JPG, PNG, HEIC · Max 10 MB

How to compress to 500KB

  1. 1. Open this page and upload your photo (JPG/PNG from camera or gallery).
  2. 2. Crop if needed so bytes go to the face or document — not empty background.
  3. 3. Keep the 500KB target (or adjust min/max), then Free Download the compressed JPG.
  4. 4. Upload that file to your form or portal. Your original never leaves this device.

Share with friends

Help others reduce photo & signature size for exam forms

Instagram has no direct web share link — on phone tap Share… and pick Instagram, or use Copy link and paste in your story / bio / DM.

Compress image to 500KB · reduce photo size to 500KB

For larger certificate / scan uploads that still need a 500KB cap. Free Download after compress.

For PDFs, use Compress PDF or Marksheet PDF shrink instead of this photo tool.

Frequently Asked Questions

Upload your photo on this Size to KB page, crop if needed, then Free Download when the file is at or under 500KB. Processing stays in your browser — nothing is uploaded to our servers.