Convert FITS to WebP

How it works

1. Drop a .fits file (or any image) onto the page.
2. The WebP output preset is already selected — hit Convert Now.
3. Download the result. The whole conversion ran in your browser via WebCodecs or FFmpeg.wasm. No file left your device.

Why convert FITS to WebP?

Convert FITS to WebP for modern web display. Smaller than PNG at the same visual quality, and every modern browser supports it.

You might also want to convert PNG to JPG, convert PNG to WebP, convert JPG to PNG, convert JPG to WebP, convert WebP to JPG, convert WebP to PNG, convert SVG to PNG, convert SVG to JPG, convert TIFF to JPG, convert TIFF to PNG, convert BMP to PNG, convert BMP to JPG, convert JFIF to JPG, convert JFIF to PNG, convert JFIF to WebP, FITS to PNG (astrophotography), or FITS to JPG.

Is my file uploaded anywhere?

No. poqpoq is a static site — the page you're looking at is a bunch of JavaScript your browser downloaded once. It runs entirely on your device. There is no upload endpoint. When you open your browser's Network tab during a conversion, you'll see zero requests going out.