Bring your images.
Choose a file, a batch, or a folder. Your original files remain untouched.
THE PIKOZIP IMAGE TOOLKIT
Compress an image to 100 KB, 50 KB or 20 KB.
Reduce image size in KB free. Set a 100 KB, 50 KB or 20 KB target, compress JPG, PNG or WebP photos in your browser and download without uploads.
On-device processing
Drop your images here
Keep your format where supported; HEIC/HEIF inputs are converted. Drag and drop, paste, or choose images below.
Up to 30 images · 10 MB per image
PNGJPEGWebPAVIFHEIC
Output settingsOriginal format · Smart compression · Original dimensionsCustomize
Compress to 100 KB
How to reach a KB limit
Many application forms and websites only accept photos under 100 KB, 50 KB or 20 KB. Add your images, open Customize and enter the Target file size in KB. PikoZip searches lower quality settings until the file fits, or reports that the target was not reached.
A target is a goal, not a guarantee. A large or detailed image may need a smaller maximum width before it can reach 20 KB. JPEG and WebP usually reach small targets more easily than PNG. Always check the downloaded file size against the exact limit of the receiving website.
Very small targets reduce visible detail. Use the comparison view to check faces, text and edges before you submit the file.
For a 20 KB form photo, set a maximum width of around 400 to 600 pixels first, then enter the KB target.
How to reduce image size in KB
Add up to 30 images. Open Customize and type your Target file size, for example 100, 50 or 20 KB. If the target is not reached, set a smaller maximum width and try again. Download the file and confirm its size before you upload it to the receiving website.
Compress an image to 200 KB or 500 KB
Larger targets work the same way and usually keep more detail. Enter 200 or 500 in the target field. If the original is already below the limit, keep the original instead of compressing it again.
Why can an image not reach 20 KB?
Every image needs a minimum number of bytes to describe its pixels. A large camera photo can stay above 20 KB even at low quality. Reducing the width lowers the pixel count, which is usually the most effective way to meet a strict KB limit.
A SIMPLE WORKFLOW
Get started with Compress to 100 KB.
Find your balance.
Set format, quality, width, and an optional target size. Compare your result.
Take the lighter route.
Download one image or the whole batch in a ZIP, with folder paths preserved.
THE DETAILS THAT MATTER
Know your result.
Are my images uploaded?
No image bytes are uploaded. Your browser fetches the image codecs, then processes your selected files locally.
Will the output always be smaller?
Savings vary. A same-format, same-dimension original is retained when it is smaller. Explicit conversions may increase file size, which the result clearly shows.
Can I keep working from the original?
Yes. PikoZip does not overwrite the source file on your device. Keep your original master and download the output as a separate file.
YOUR NEXT STEP
Keep the workflow moving.
Image format guide
Compare PNG, JPG, WebP and AVIF for photos, transparent graphics and website images. Choose a format using your actual output and compatibility needs.
Explore
Image compression explained
Understand lossy and lossless image compression, resizing and target file sizes. Learn why 100 KB is a goal and when keeping the original is the best result.
ExploreYOUR WORKFLOWHelp center
Search common image optimization questions and troubleshoot your PikoZip results.
ExploreMAKE A LITTLE ROOM
Start optimizingYour next image, a little lighter.
Choose your format. Find your balance. Take it with you.