Free PNG Compressor

How to compress a PNG for free

1. Click "Choose file" or drag and drop your PNG into the upload area above.
2. Use the quality slider to choose your compression level. 70% works well for most uses.
3. Click "Compress PNG." The file is processed instantly inside your browser.
4. Click "Download compressed PNG" to save the smaller file to your device.

Why compress PNG files?

PNG files are often much larger than JPEG files because PNG was designed for lossless quality. This makes PNG ideal for logos, screenshots, and graphics with transparency — but the file sizes can be impractical for web use, email attachments, or platforms with upload size limits.

Compressing a PNG reduces its file size significantly while keeping quality acceptable for most everyday purposes. A compressed PNG can be 40 to 70 percent smaller than the original.

Does PNG compression remove transparency?

No. QuickImgPress preserves the transparent background of your PNG during compression. This is important for logos, icons, and product images that need a transparent background. If transparency is not needed, converting to JPG will produce an even smaller file.

Frequently asked questions

Does compressing a PNG remove its transparent background?

No. Transparency is fully preserved during compression. Your PNG will retain its transparent areas exactly as they were in the original file.

What is the difference between PNG and JPEG?

PNG supports transparency and uses lossless compression by default, making files larger but preserving every pixel. JPEG does not support transparency and uses lossy compression, producing smaller files suited for photographs.

Is my PNG file safe to compress on QuickImgPress?

Yes. Your file never leaves your device. All compression happens inside your browser using JavaScript. Nothing is uploaded to any server.

Can I compress a PNG with a transparent background?

Yes. QuickImgPress handles PNG transparency correctly. The compressed output will have the same transparent areas as the original.

How do I make a PNG file smaller without losing quality?

Set the quality slider to between 75 and 85 percent. At this range, the compressed PNG will be noticeably smaller with minimal visible quality loss for most images.