What to expect at 100 KB
A 100 KB budget can suit a modest portrait or thumbnail, but a detailed screenshot may lose readability if it must be resized. Begin with the original and preview faces, signatures, and lettering after compression.
SMALLER FILES. ZERO UPLOADS.
Compress an image to 100 KB
Application photos and lightweight website thumbnails. Set the limit; we’ll find a smaller fit, right in your browser.
LOCAL IMAGE COMPRESSORNo account. No uploads.
Give your photos some breathing room.
Drop your images here, or choose them below.
JPG, PNG & WebP · Up to 30 MB eachYour images never leave this browser.
Private by design One image or a whole batch Free to use
NOTHING TO INSTALLFrom heavy to ready.
From heavy to ready.
In three small steps.
- 01
Drop them in
Choose a photo or add a batch. Everything stays on your device.
- 02
Find your balance
Adjust quality or pick a size limit. We’ll take care of the compression.
- 03
Take the lighter version
Check the result and download. One at a time, or all in a ZIP.
How the target is reached
The 100 KB preset is selected for you. For JPG and WebP, the tool starts at your chosen quality and searches down to a 40% floor. If the file still exceeds 100,000 bytes, it reduces dimensions in bounded steps. PNG uses dimension changes because its lossless encoder ignores quality. Each result says whether the target was met.
Before you submit or publish
If an application portal rejects a file that meets the size limit, check its allowed format and dimensions. Some portals accept JPEG only. This compressor preserves your input format, so select a JPG original for those forms.
PUT IT TO WORK
Practical examples
Suggested workflows. Actual savings depend on your image.
An application photo with format and size rules
If the portal requires JPG, select a JPG original. The active 100 KB target applies to each selected photo independently.
Before you download: Confirm the result is at most 100,000 bytes and that its dimensions match the form. A PNG below 100 KB can still be rejected by a JPG-only portal.
A FEW USEFUL DETAILS
Good to know.
Why does a portal reject my image even below 100 KB?
It may also restrict format, width, height or aspect ratio. Check those rules alongside the size. This compressor keeps the original format and reports output dimensions.
Can a signature image stay readable at 100 KB?
A closely cropped signature may work, but small strokes can be damaged by resizing or lossy encoding. Inspect the actual result before submitting. Crop in an editor first if there is a large empty border.
Is 100 KB the same as 100 KiB?
Here 100 KB means 100,000 bytes. That also fits a 100 KiB limit of 102,400 bytes. The download size shown is measured from the actual result.
The right fit for your files.
Pick a format or start with a size limit.