Compress image to 100 KB
Many online forms reject photos above a fixed size. Drop your image below and PhotoReducer will automatically find the highest possible quality that stays under 100 KB — you can also pick a different limit.
Drop images here or click to browse
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP · processed on your device, never uploaded
How to use this tool
- Pick your target file size, for example 100 KB, and drop your photos into the tool.
- The tool tests quality levels automatically until the image fits under your limit.
- Check the preview and download the image, or process a whole batch and get a ZIP.
How it reaches the exact size
The tool searches for the best quality level whose result stays under your target. If compression alone is not enough, it scales the image down slightly and tries again, always keeping the largest, sharpest version that fits the limit.
Typical uses
Job application portals, visa and passport forms, university admission sites and government websites often cap uploads at 20, 50, 100 or 200 KB. Because everything runs on your device, this is also the safest way to prepare ID photos and documents — nothing is ever uploaded.
Real results when compressing to 100 KB
We measured these results using the exact same compression engine that runs on this site, applied to five public-domain sample images. Each image was compressed to the target size with our quality-search algorithm, and dimensions were reduced only when quality alone was not enough. Your own photo may give different results depending on its content and starting size.
| Sample | Original | Result | Final size (px) | Quality |
|---|---|---|---|---|
| 18 MP DSLR photo | 3.0 MB · 5184×3456 | 99 KB | 2617×1745 * | 54 |
| 10 MP compact camera photo | 2.2 MB · 3648×2736 | 99 KB | 2010×1507 * | 51 |
| 10 MP landscape photo | 2.3 MB · 3812×2623 | 99 KB | 1045×719 * | 55 |
| Scanned page at 400 dpi | 2.2 MB · 4078×5825 | 99 KB | 1208×1724 * | 48 |
| Phone screenshot (PNG) | 1.3 MB · 1280×2400 | 99 KB | 1152×2160 * | 54 |
* Dimensions were reduced to fit within the size limit.
Each sample was compressed with MozJPEG, the same engine used on this site. We searched for the highest quality level that fits the target size, and reduced dimensions only when quality alone could not reach it. Your photo will give different results depending on its content, colors and original size.
Frequently asked questions
What if my photo cannot reach 100 KB?
If the target cannot be reached by lowering quality alone, the tool reduces the dimensions of the image step by step until it fits — this is automatic.
Can I choose a different size, like 50 KB or 20 KB?
Yes. Use the presets or type any target in kilobytes; the same search works for any limit.
Is it safe for ID or document photos?
Yes. Your photo is processed locally in your browser and never uploaded, which makes it ideal for sensitive documents.
What happens if the target size cannot be reached?
The tool keeps the highest quality it can achieve without going below the minimum quality floor. If the limit is still not met, try converting to WebP first, or reduce the image dimensions before compressing. With very small images or very low size limits, it may simply not be possible.
Are the metadata and GPS location removed?
Yes. Every image is re-encoded from scratch, so the result contains no EXIF data at all. That includes the GPS location, camera model, and any other metadata that came with the original file. What you download is a clean image.
Can I process many photos at once?
Yes, you can drop in a whole batch of photos and process them all at once. When you are done, download everything as a single ZIP file. Everything runs locally in your browser, so none of your photos are ever uploaded to a server.
Other size limits
25 KB30 KB40 KB50 KB60 KB80 KB120 KB150 KB