Compress JPEG to 100 KB
Application portals rarely stop at a size limit; most also say “JPEG only”. This page does both in one pass: whatever you upload comes back as a genuine JPEG file at or just under 100 KB.
Compress Image
or drop JPG, JPEG, JFIF … files here ·
Max 95 MB per file· Up to 20 files· Deleted after 30 minutes
Files are processed on our servers and deleted after 30 minutes.
Never shrink below this width when downscaling. 0 means no minimum.
Optionally set the dimensions before compressing. Forms that specify pixels as well as KB need both.
Pixels for the side you chose above.
The search for the target size will not go below this quality; it downscales instead.
4:2:0 halves color resolution and saves a lot on photos; 4:4:4 keeps sharp edges on text, logos and screenshots.
Lossy PNG quantises colors (like TinyPNG) and is far smaller; lossless keeps every pixel.
How to use this tool
- 1
Choose the file
Pick the photo or scan to submit: JPEG, iPhone HEIC, PNG or WebP, up to 20 files per batch.
- 2
Leave JPG and 100 KB as set
Output format is fixed to JPG and Target size to 100 KB on this page. Lower the number to 95 if the form is strict about the limit.
- 3
Compress to JPG
Press Compress to JPG, check the size under each result and download the .jpg files.
How do I compress a JPEG to 100 KB for an online form?
Upload the image, keep the JPG output and 100 KB target and press Compress to JPG. You get a real JPEG file, not a renamed one, sized at or just under 100 KB.
Why exam and job portals ask for JPEG only
Recruitment boards, entrance exam agencies and university admission systems have to display millions of candidate photos inside a browser and often print them on admit cards. JPEG is the one image format every browser, printer driver and document generator has handled since the 1990s; the standard was published as ISO/IEC 10918-1 in 1992.
The catch is that modern phones do not always produce JPEG. iPhones have saved photos as HEIC by default since iOS 11 in 2017 when the camera is set to High Efficiency, screenshots on most systems are PNG, and images saved from websites are increasingly WebP. All of those fail a “JPEG only” check even if they are under the size limit.
That is why this page pins Output format to JPG. A HEIC from your camera roll or a PNG scan goes in, and a standard JPEG of 100 KB or less comes out, with the camera rotation applied so the face is upright on the admit card.
Exam photo size in KB: where 100 KB fits
10–200 KBphoto range in recent National Testing Agency forms for JEE Main and NEET-UG, JPG or JPEG only
JPEG to 100 KB: fixes for rejected uploads
“Only JPG/JPEG files are allowed” on a file that ends in .jpg
The file was renamed rather than converted, often a HEIC or WebP image. Run it through this page; the output is re-encoded as JPEG.
“Photo should be between 80 KB and 100 KB”
Your file is below the minimum. Raise the size with an increase tool, or start from the original camera photo instead of a messaging-app copy.
The photo appears sideways on the preview
The camera stored the rotation as a tag the portal ignores. Keep Auto orient on so the pixels themselves are turned upright.
Two settings under Advanced settings are worth a look for form photos. Progressive JPG is on by default and is understood by every modern browser, but if a portal's preview stays blank, switch it off and compress again; a few legacy systems only decode baseline JPEGs. Chroma subsampling set to 4:4:4 keeps thin signature strokes and printed text crisper at the cost of a few kilobytes.
If the form wants the photo embedded in a PDF instead of as an image, the PDF wrapper adds its own overhead; JPG to PDF under 100 KB sizes the finished document instead.
Questions about JPEG files at 100 KB
The form says JPEG but my file ends in .jpg. Will it be accepted?
Yes. JPG and JPEG are the same format; the three-letter .jpg ending dates from MS-DOS and early Windows, which allowed only three characters after the dot. Any portal that checks for JPEG accepts both. The JPG vs JPEG vs PNG article explains the history.
Can I just rename my .heic or .png file to .jpg?
No. Renaming changes the label, not the contents, and most portals now read the first bytes of the file to check its real type. A renamed HEIC is rejected or, worse, uploads and then fails to display for the reviewer. This tool re-encodes the image, so the result is a real JPEG.
How do I increase JPG size to 100 KB when the form needs at least that much?
Compression cannot add bytes. If your file is, say, 40 KB and the portal wants 80–100 KB, use increase image size to 100 KB, which raises quality and pixel count until the file reaches the minimum.
What resolution will my JPEG have at 100 KB?
For a typical photo, roughly 1200 to 1600 pixels on the long side at quality around 70. A plain-background ID photo or a black-and-white scan keeps more pixels; a busy outdoor shot keeps fewer.
My JPEG is already 100 KB. Why compress it again?
If it is exactly 100 KB by your computer's count, a portal that counts 1,000 bytes per kilobyte may still read it as 102 KB and refuse it. Re-run it with Target size at 95 to be safe; at that level the visual change is negligible.
Can I compress the photo and the signature for the same form here?
Yes, but in two rounds, because each has its own limit. Do the photo at 100 KB here, then use compress JPEG to 50 KB or a smaller target for the signature.
