Easily convert PNG image files to JPG.
Easily convert PNG image files to WEBP.
Easily convert PNG image files to GIF.
Easily convert PNG image files to BMP.
Easily convert IDN to Punnycode and back.
Extract email addresses from any kind of text content.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Take an IP and try to look for the domain/host associated with it.
Make sure your passwords are good enough.
Get all possible details about an SSL certificate.