Image Tools
Compress Image to 100 KB
Compress an image to under 100 KB - the most common upload cap for job application portals, educational institutions, and HR systems worldwide.
The algorithm
100 KB is a comfortable target for most photos. The tool preserves recognizable detail and typically lands between 80-100 KB with mild compression. Phone photos, cropped headshots, and scanned documents all compress cleanly here.
If your image is already under 100 KB, the tool detects this and returns the original unchanged - no quality loss from unnecessary re-encoding.
A real use case
Common use: LinkedIn profile pictures, Naukri job applications, university admission portals, and corporate HR onboarding systems typically cap photo uploads at 100 KB. Scanned document uploads for KYC also often use this limit.
Common questions
What's the typical quality at 100 KB?
For a properly sized photo (around 800×800 pixels), 100 KB produces visually clean results - not visibly compressed at normal viewing distances. For 4K photos, there will be mild softening.
Can I use this for passport-sized ID photos?
Yes, if the portal allows up to 100 KB. For portals specifying 20 KB or 50 KB, use the dedicated pages - they target that exact size.
Is this really private?
Yes. Compression runs entirely in your browser using Canvas APIs. The image is never uploaded or stored. You can disconnect from the internet after the page loads and it still works.
What image formats are accepted?
JPG, PNG, WebP, and GIF (first frame only). Output is always JPEG - it gives the best size-to-quality ratio for photos and screenshots at these target sizes.
What's the maximum file size I can upload?
Up to 50 MB. Modern phone photos are typically 2-8 MB, so even a RAW-converted image or a 4K screenshot fits comfortably.
Why does my file land slightly under the target instead of exactly on it?
The tool binary-searches JPEG quality to find the highest setting that still fits under the target. It stops at the first setting that lands under - which is exactly what upload portals want.