What “to 100KB” means
TargetKB treats 100KB 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 100KB.
Compress a photo below a common 100KB portal limit while keeping the highest quality TargetKB can fit. The 100KB 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 100KB 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 100KB 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 100KB maximum.
Common reasons to use 100KB
- Online applications that reject photos over 100KB
- ID, profile, exam, visa, or job-form images
- Email and web uploads that need a predictable maximum size
A reliable way to get there
- Use the prefilled 100KB target and keep Auto format unless the receiving site requires JPG or PNG.
- TargetKB searches image quality at the original dimensions before reducing width or height.
- Confirm the upload-ready badge and exact byte result before downloading.
QUESTIONS ABOUT 100KB
Before you upload the result.
Check the destination site’s format and dimension rules as well as its file-size limit.
Will the result be exactly 100KB?
It will be no larger than 100KB. Adding meaningless bytes to hit an exact number does not improve quality and can make a portal reject the file.
Can I compress a photo from 200KB to 100KB?
Yes. Add the image and TargetKB will search for the highest-quality result that fits under 100KB, reporting any format or dimension change.
Should I choose JPG, PNG, or WebP?
JPG usually suits photographs, PNG suits graphics that need transparency, and WebP often gives a smaller file. Follow the destination site's accepted-format rule first.
Does TargetKB store my image?
No. The image remains on your device and is processed locally in your browser.
Need a different limit?
Open the flexible KB and MB compressor