Compress an image to 100 KB.
Job portals, exam forms, visa applications, and email often cap uploads at 100 KB or less. Set the exact size you need and let BlurImage find the best quality that fits. Everything stays on your device.
How to do it, step by step
- Open the free image compressor and add one or more JPG, PNG, or WebP images.
- Choose the target size mode and enter 100 KB (or any other limit, like 20 KB, 50 KB, or 200 KB).
- Optionally pick an output format: JPG for photos and forms, WebP for the smallest files, PNG for graphics.
- Compress and check the resulting file size and preview.
- Download the image, or download a whole batch as a ZIP.
Common upload size limits
Many online forms set strict limits on photos and scanned documents:
- Passport-style photos for exams and job applications: often 20 KB to 100 KB.
- Signatures: frequently 10 KB to 50 KB.
- Scanned documents such as certificates and ID cards: often 100 KB to 500 KB.
- Email attachments and website images: under 200 KB keeps pages and inboxes fast.
Always check the exact limit and required format (usually JPG) on the form before compressing.
How to keep quality high at 100 KB
Reduce the dimensions first
A 4000-pixel phone photo holds far more detail than a form needs. Resizing to about 1200 pixels wide lets the compressor use higher quality within the same 100 KB.
Pick the right format
JPG and WebP compress photos much better than PNG. Use PNG only for simple graphics or when the form requires it.
Hide private details before sending
Sending a document photo? Blur ID numbers and other sensitive text first, then compress it.
Frequently asked questions
How do I compress an image to 100 KB?
Open the BlurImage compressor, add your image, set the target file size to 100 KB, and compress. The tool adjusts quality and, if needed, dimensions to get under the limit. Then download the result.
Can I compress a JPG to 50 KB or 20 KB?
Yes. Enter any target size in KB or MB, such as 20 KB, 50 KB, 200 KB, or 1 MB. Very small targets on large photos may also require reducing the dimensions.
Will compressing to 100 KB reduce quality?
Some quality is lost, but for typical photos 100 KB is enough to look good on screen. Converting to WebP or reducing very large dimensions often keeps more visible detail at the same size.
Can I compress many images to 100 KB at once?
Yes. Add multiple images, set one target size, and download all the results as a ZIP file.
Are my images uploaded?
No. Compression happens in your browser, which matters for ID photos, signatures, and documents submitted to forms.