Compress PNGto 100KB
Need a PNG under 100KB for a logo, graphic or upload? Drop it in — the tool automatically reduces the colour palette to fit 100KB while keeping transparency. Processed privately in your browser.
Compress PNG to 100KB
Drop images here or click to select
Auto-sized to 100KB or less — processed in your browser
target 100KB — auto quality searchCompress PNG to 100KB — how it works
PNG is lossless, so reaching 100KB means reducing the number of colours in the image rather than lowering a quality value. This tool uses palette quantization: it shrinks the colour palette to a smaller set until the file fits 100KB, while preserving transparency and sharp edges.
Palette reduction works very well for logos, icons, screenshots and flat graphics — these often have few colours and compress dramatically with no visible change. For photographs, however, reducing colours to hit 100KB looks poor; for photos you should use JPG or WebP instead. The tool automatically loads the quantization library only when a PNG is being processed.
PNG keeps transparency and sharp edges, which JPG cannot. Palette quantization reaches 100KB while preserving what matters for graphics.
At a glance
| Property | Detail |
|---|---|
| Target | 100KB or less |
| Method | Auto quality search |
| Best format | PNG (locked) |
| Typical use | Logos, graphics, screenshots, transparent images |
| Privacy | 100% in-browser, no upload |
Frequently asked questions
How do I compress a PNG to under 100KB?
Drop your PNG into the tool above. It automatically reduces the colour palette until the file is 100KB or less, keeping transparency. Output is always PNG.
Does PNG compression keep transparency?
Yes. The tool uses palette quantization, which preserves full alpha transparency. Transparent areas stay transparent in the result.
Why does my PNG look worse after compressing to 100KB?
PNG is lossless, so hitting 100KB forces a big reduction in colour count. This looks fine for logos and graphics but poor for photos. For photos, use JPG or WebP instead.
Is the PNG to 100KB compressor free and private?
Yes. Everything runs entirely in your browser, so your image is never uploaded. It is free with no sign-up, no watermark and no limits.