Compare software

cidr vs IPCalc: catalog facts
cidr	IPCalc
Free Free and open source under the MIT license.	Free Free and open source under GPL-3.0-only.
Windows, macOS, Linux, Command line	Android
Handles both IPv4 and IPv6 ranges Checks containment and overlapping ranges	Calculates network and broadcast addresses Converts IP addresses to binary
A command-line tool without a graphical interface	Geolocation identifies the country and possibly the city associated with an IP address.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.