Compress Image to 100 KB
Batch100 KB is one of the most common upload limits on job portals, visa and ID applications and online forms. Compress your image to 100 KB in one step, with a before-and-after preview. Images are processed on your device, never uploaded.
Processed on your device Image toolsAccepts JPG, PNG, WebP, GIF, BMP, AVIFUpdated
How to use Compress Image to 100 KB
- 1
Add one or more JPG, PNG or WebP images.
- 2
The target is already set to 100 KB; change the format or dimensions if you need to.
- 3
Compress and download images under 100 KB, one by one or as a ZIP.
Features
- Target size preset to 100 KB
- Before-and-after comparison
- Optional maximum width and height
- Batch compression with ZIP download
Common file size limits
Typical limits on forms and portals. Always check the exact size the form asks for, then compress to it.
| What you are uploading | Usual limit | Compress it |
|---|---|---|
| Scanned signature on an application form | 10–20 KB | Compress Image to 20 KB |
| Passport-size photo for exam and job forms | 20–50 KB | Compress Image to 50 KB |
| Photo or ID upload on job portals | 100 KB | This page |
| Certificates and documents as PDF | 100–200 KB | Compress PDF to 200 KB |
| Government and university portals | 500 KB | Compress PDF to 500 KB |
| Upload forms with a 1 MB cap | 1 MB | Compress PDF to 1 MB |
Real results: from MB to KB
Measured with these tools in Chrome on a laptop. Your own files may shrink more or less depending on what is in them.
| File | Before | Target | After | Saved |
|---|---|---|---|---|
| 3-page PDF of photos | 6.2 MB | 100 KB | 39 KB | −99% |
| 10-page PDF of photos | 1.9 MB | 200 KB | 166 KB | −91% |
| 10-page PDF of photos | 1.9 MB | 1 MB | 607 KB | −69% |
| 3000 × 2000 photo (JPG) | 1.9 MB | 100 KB | 91 KB | −95% |
| 3000 × 2000 photo (JPG) | 1.9 MB | 50 KB | 47 KB | −98% |
| 3000 × 2000 photo (JPG) | 1.9 MB | 20 KB | 20 KB | −99% |
Compress an image to a specific size
Guides
Frequently asked questions
How do I compress an image to 100 KB?
Add the image and press Compress. The target is set to 100 KB, so the tool finds a quality that fits and shows the before-and-after result.
Can I compress a 5 MB photo to 100 KB?
Yes. Large phone photos usually need fewer pixels as well as stronger compression, so turn on the maximum width and height option, for example 1200 pixels, for a sharper result.
Can I convert to JPG while compressing?
Yes. Choose JPG, PNG or WebP as the output format. JPG or WebP reach 100 KB much more easily than PNG for photos.
Are my files uploaded to a server?
No. Compress Image to 100 KB runs entirely in your browser, so your files stay on your device. Nothing is uploaded, stored or seen by anyone else.
Is Compress Image to 100 KB free?
Yes. It is completely free, with no sign-up and no watermarks.