Yes, PNG Minify is completely free. There are no hidden fees, subscriptions, or limits on the number of files you can compress.

Does my image get uploaded to a server?

No. All compression happens entirely in your browser using JavaScript. Your images never leave your device and are never sent to any server.

What is the maximum file size?

Each PNG file can be up to 50 MB. You can compress up to 20 files at once.

How much can I compress a PNG?

Results vary depending on the PNG content, but typical savings range from 30% to 80%. Photographic PNGs compress more than simple graphics or icons.

Do you support JPG, WEBP or other formats?

PNG Minify focuses on PNG only. For WEBP files we recommend using miniwebp.com.

Can I use PNG Minify for commercial projects?

Yes. You can use the compressed images in any personal or commercial project.

Is there a watermark on the output?

No. Your images stay clean — we do not add any watermarks or visual marks to your PNGs.

How it works

Compress PNGs in three simple steps

PNG Minify runs entirely in your browser. Your images never leave your device — we simply transform them locally using modern compression techniques.

1. Upload

Drag & drop your PNG files into the upload area or click the button to choose files from your computer. PNG Minify accepts PNG only — other formats like JPG or WEBP are gently rejected.

2. Compress

For each file we run browser-side compression using JavaScript-based algorithms. Use the quality slider to balance file size and visual quality. All processing happens locally in your browser tab.

3. Download

Once compression is finished, download individual PNGs or everything as a single ZIP. We never store or log your images — after download, the data stays only with you.