Compress PNG Online Free

PNG files preserve sharp edges and transparency but can be surprisingly large. FastEdit compresses PNGs directly in your browser using OxiPNG (an advanced PNG re-encoder that finds optimal compression parameters) and optional color quantization (reducing the number of colors in the palette), no upload, no server, no privacy risk. Your images never leave your device.
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Steps

01

Open FastEdit

Go to app.fastedit.net. No installation or account needed: the editor runs entirely in your browser using WebAssembly.

02

Load your PNG

Drag and drop your PNG file onto the editor, or click to browse. The file stays on your device, and nothing is uploaded to any server.

03

Choose compression settings

For lossless compression, FastEdit applies OxiPNG to re-encode your PNG with optimal filtering and compression. For much larger savings, enable color quantization to reduce the palette while preserving visual quality.

04

Use fit-to-size if needed

If you need to hit a specific file size target, enable fit-to-size and enter your limit. FastEdit automatically adjusts quality parameters to meet the target.

05

Preview and export

Compare the original and compressed versions side by side. When satisfied, click Export to download your optimized PNG.

Benefits

Compression Tips

Free. No upload. No watermark. No account. No limits.

Compress Now, Free

FAQ

Your Next Edit Is 3 Seconds Away.

No download. No signup. Just your browser.

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100% Free 100% Client-Side No Account Needed