What “to 500KB” means
TargetKB treats 500KB as a maximum, not a visual guess. An upload-ready result is no larger than that limit. It never adds useless bytes just to make the number look exact.
Compress image to 500KB.
Reduce a JPG, PNG, or WebP below 500KB and verify the final size before you upload it. The 500KB maximum is already set—add a JPG, PNG, or WebP to begin.
Drop one image here
JPG, PNG, or WebP · up to 60 MB
Your image never leaves this deviceQuality first · Dimensions only reduced when necessary
Your proof appears here
See whether the result passes, what changed, and how the quality looks before downloading.
Exact output sizeBefore / after viewChange report
What changes first
For JPG and WebP, TargetKB searches quality at the original dimensions first. If that cannot meet 500KB and resizing is allowed, it reduces dimensions in reported steps. Auto may use WebP when it is the more practical result.
Where your image goes
Nowhere. Decoding, re-encoding, comparison, and download happen in this browser tab. Account and payment servers never receive the image bytes.
A PRACTICAL 500KB GUIDE
Pass the file-size check without hiding the trade-offs.
The receiving website may also specify dimensions or a file format. Follow those rules together with the 500KB maximum.
Common reasons to use 500KB
- Web images and email attachments
- Portal uploads with a 500KB ceiling
- Smaller files for faster sharing
A reliable way to get there
- Keep the prefilled 500KB limit.
- Choose a required format or leave Auto selected.
- Download only after the result is marked upload-ready.
QUESTIONS ABOUT 500KB
Before you upload the result.
Check the destination site’s format and dimension rules as well as its file-size limit.
Does below 500KB pass a 500KB maximum?
Yes. The file does not need to equal 500KB; it needs to stay at or below the stated maximum.
Will my image be uploaded?
No. TargetKB processes the image locally in your browser.
Need a different limit?
Open the flexible KB and MB compressor