Which files do I need?
WordPress: a square 512 × 512 PNG. Select it as the site icon under Settings → General → Site Icon.
Your own website: favicon.ico (16, 32 and 48 px), favicon-96x96.png and a 180 px apple-touch-icon.png. The HTML for the <head> is included in the ZIP.
Will my logo be distorted?
No. Images that aren’t square are centred and fitted. You can trim empty borders and add padding, with either a transparent or coloured background.
What happens to my data?
Your image stays on your device and is processed entirely in your browser. No accounts, uploads or tracking.