Balanced compression
Compress image to 100KB online
Shrink photos to 100KB for upload limits while keeping a practical balance between file size and visual quality. Works with JPG, PNG, and WebP files directly in your browser.
Original
Why 100KB is a good target for online image uploads
Many websites accept 100KB images because the size is small enough for fast upload but still large enough to keep faces, certificates, product images, and scanned pages recognizable. If the first result looks too soft, increase the max width slightly or choose WebP output. If your upload portal only accepts JPG, keep JPG selected and use a clean original image for the best result.
Can I compress PNG to 100KB?
Yes, but photos usually compress better as JPG or WebP. PNG is better for flat graphics, logos, and transparent images.
Will the tool hit exactly 100KB?
The compressor aims to stay near or below your target. Very detailed images may require dimension reduction to get under the limit.
100KB guide
What can a 100KB image be used for?
A 100KB target is a strong default for document portals, certificate uploads, resumes, profile photos, lightweight product images, and email attachments. It gives the compressor more room to preserve edges and colors than 20KB or 50KB. For most phone photos, selecting JPG output and keeping the max width around 1400–1800px gives a good balance.
Recommended 100KB settings
- Output format: JPG or WebP
- Max width: 1400–1800px
- Best for: certificates, profiles, product images
- Tip: use WebP if your destination accepts it
Expected output size by resolution and quality
Approximate file sizes for common resolutions. Actual results vary with image content.
| Resolution | Quality 80 | Quality 70 | Quality 60 | Quality 50 |
|---|---|---|---|---|
| 4000×3000 (12MP phone) | 800-2000 KB | 500-1200 KB | 300-700 KB | 180-400 KB |
| 2000×1500 (5MP) | 250-600 KB | 150-350 KB | 90-200 KB | 55-120 KB |
| 1280×960 (1.2MP) | 100-250 KB | 60-150 KB | 40-100 KB | 25-65 KB |
| 800×600 | 35-90 KB | 22-55 KB | 15-35 KB | 10-22 KB |
Tip: For best results with the 100KB target, resize your image to approximately 800px wide first, then compress.