Optimize PNG Images for the Web
Make PNGs web-ready: optional palette reduction, smart dimensions and re-encoding. Keep transparency, cut the bloat.
About the Optimize PNG for Web
PNG screenshots from Retina displays can weigh 5–10MB. Palette reduction to 128 colors typically cuts that to under 1MB while keeping text crisp and transparency intact — the fastest win for UI screenshots and diagrams.
How it works
The optimizer rebuilds your PNG around a median-cut palette of 32–256 colors, which collapses the file's color table to exactly what the image needs. Transparent areas survive every step, so soft edges and cut-outs stay intact while the byte count drops, often by half or more on graphics.
How to use it
Add up to 10 .png files, choose a color budget — 256 for detailed UI shots, 64 for flat icons and logos — and optionally go grayscale. Process, inspect each preview over the transparency checkerboard, then download the batch.
Supported formats & limitations
Input: .png only, 30MB max per file, 10 per run; output remains PNG with alpha. Photographic content in PNG form benefits little from palettes — convert those to WebP or JPG via the universal converter for much bigger wins.
Common use cases
Made for web graphics: interface screenshots, diagrams, logos, charts and anything with crisp text where JPEG artifacts would be unacceptable. Documentation teams use it to keep image-heavy docs fast; designers slim app bundles before release.
Frequently asked questions
Where are my images processed?
Everything runs locally in your browser via the Canvas API. Your picture never leaves your machine — there is no upload step at all, so processing is as private as working in an offline editor.
Which file types are supported?
PNG files up to 30 MB each are accepted. Drop in one file or a whole batch (paste and drag also work), check the preview, and export in the format shown at the download step.
How many images can I process at once?
There are no artificial limits: use it as often as you like, free. Practical caps are 30 MB per image and 10 files per batch, and outputs stay watermark-free.
Can I fine-tune the result before downloading?
Yes — settings include Color palette, Grayscale mode. Each run regenerates the preview, so you can compare options before downloading.
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