Exam & application forms
Resize Image to 10 KB
Preset and ready: drop a file and the output lands under 10 KB as JPEG — processed entirely in your browser.
Drop your image here or browse
JPEG, PNG, WebP — everything stays on your device
Why this exact limit matters
"Resize to 10 KB" mixes two vocabularies — resize is about pixels, 10 KB is about bytes — and exam portals mean the bytes. The useful machine is one that treats dimensions as flexible and your kilobyte ceiling as the law: it shrinks the frame only as far as needed, then spends the remaining budget on quality. That is exactly how this page’s engine behaves, and the measurement below shows it deciding on its own.
These portals enforce their limit at the byte level, so the only reliable approach is to work backwards from the number itself and let the encoder find the best quality that fits underneath it. 10 KB is one of the tightest limits you will meet online, and this page is preset to exactly that ceiling.
How to compress to 10 KB
- Drop your image into the box above — it stays on your device.
- Confirm the target: under 10 KB as JPEG.
- The MozJPEG encoder searches its quality range so the JPEG output lands just under your limit. Dimensions are left at their original size unless the target demands otherwise.
- Preview the result, compare it with the original if you want, and download — the filename carries its actual size.
Tip: Before you upload, check whether your form also specifies pixel dimensions — if it does, fill in the max width and height here so both constraints are satisfied in one pass.
Measured: the engine resizes itself to hit 10 KB
We fed the compressor a real 3.2 MB, 6000×4000 camera original with a bare 10 KB ceiling and no dimension caps — and watched it choose its own frame:
Source file
3.2 MB
6000×4000, 24 MP
Output
8.8 KB
363× smaller
Engine-chosen frame
1974×1316
scaled to 33%
Quality setting
q1
budget exhausted
This is the resize-compress distinction in one run: at 24 megapixels not even quality 1 fits 10 KB, so the engine stepped the frame down until the target became reachable. Ten kilobytes is the tightest floor in Indian exam use (JEE and NEET accept 10–200 KB) — if your form also names pixel dimensions, enter them and the engine stops guessing.
Frequently asked questions
Is resizing the same as compressing?
No — resizing changes pixel dimensions, compressing changes file size. Portals check both, but their KB rules are about bytes. This tool works in bytes first and adjusts dimensions only when the byte target demands it.
Why 1974×1316 and not some round number?
The engine steps down by measured need, not fixed presets: it estimates how much frame reduction the target requires and lands on the first size that makes the budget reachable. Round output numbers are a human preference, not a requirement.
Can I force a specific pixel size instead?
Yes — fill in max width and height and the engine keeps your frame, adjusting quality only. If quality bottoms out at your frame, that combination is mathematically impossible and the tool says so instead of pretending.
Will a heavily compressed photo be rejected for being low quality?
Portals validate the file size and dimensions, not subjective quality. This tool keeps the best possible quality under your limit, and the comparison view lets you confirm the photo is still clearly recognizable before you download it.
How does the tool hit the exact JPEG size?
It encodes your image with the MozJPEG encoder several times, binary-searching the quality setting until the output lands just under your limit — then keeps that best result.
Is my image uploaded to a server?
No. All decoding and encoding runs locally in your browser via WebAssembly. There is no server-side pipeline, no storage, and no way for us to see your file.