Compress Image to 100KB, 50KB or 20KB
Set a maximum file size, such as 100 KB, 50 KB or 20 KB, and compress many images at once. The page lowers the quality first, then shrinks the dimensions if needed, so each image ends up as large as it can be while staying under your limit. Handy when an online application form rejects a photo or scan for being too big.
Drop images here
or
JPG, PNG, WebP and GIF. Select several files at once, up to 300 per batch.
1. Maximum file size
2. Quality and dimensions
3. Your images
Results
| Original name | Output name | Original size | New size | Dimensions (quality) | Status | Save |
|---|
The ZIP is stored without compression. If several files share a name, later ones get a number such as -2.
How to compress an image to 100KB, 50KB or 20KB
- Drop your photo or scan into the box above, or press "Choose images".
- Pick a limit with the buttons (20KB, 50KB, 100KB and so on), or type your own number in KB.
- Press "Compress". Check the result table: the new size should be at or below your limit.
- Save each file with "Save", or download everything as one ZIP.
Size limits on application forms
Online forms for jobs, schools, exams and government services often cap the size of an uploaded photo, signature or document scan, and some also set a minimum size or exact pixel dimensions. The limits differ from form to form, so check the instructions on the form you are filling in. We do not list specific limits for particular portals here, because we have not verified them against official sources.
Tips: enter a value slightly below the stated limit. This tool only brings an image under a maximum; it never makes a file bigger to reach a minimum, so if your form also requires a minimum size or fixed dimensions, check the result against those rules. Tiny limits such as 20 KB work best on small images; a large photo may need to be shrunk a lot, and text-heavy scans can become hard to read. Look at the result before you submit it. This page cannot guarantee that a file will be accepted by any particular service.
Other uses: sending several photos by email or chat, or reducing the weight of images you put on a website. To combine scans into one file, try the PDF merge tool (Japanese).
Limits and notes
- Lowering quality makes images coarser than the original. Images with a lot of text can become hard to read after shrinking. Check the result by eye before submitting.
- HEIC/HEIF (the iPhone default format) is not supported by this page. Where the browser itself can display HEIC, such as Safari, it may load, but we do not guarantee it. Images that cannot be read are listed above. To convert HEIC first, use the HEIC to JPG converter.
- Images over 100 megapixels (about 10,000 x 10,000) are not processed, because they can exhaust memory. On phones, even smaller images can fail.
- You can add up to 300 images at a time. If the combined results would exceed about 1.5 GB, the page stops and tells you.
- Compression uses the browser's own drawing and encoding, so the same KB value can look different from other software.
FAQ
Are my images really not uploaded?
Not by this page's code. Compression and ZIP creation both run in the page itself, and the code contains no network calls for your files. You can check the network tab in your browser's developer tools while you compress.
Why is the result much smaller than my limit?
The page tries quality levels in steps, so it does not always land right at the limit. Also, images already under the limit are kept as they are when the "keep" option is on.
What happens if an image cannot fit under the limit?
If the image still does not fit after the long edge is reduced to 100 pixels, it is shown as failed and left out of the ZIP. Raise the limit, or set the lowest quality to "Low", and try again.
Related tools: Compress PDF / Resize image