Compare software

ipcalc vs IPinfo CLI: catalog facts
ipcalc	IPinfo CLI
Free Free and open source under the GPL.	Free The CLI is free to download; lookups use the IPinfo API.
Linux, Command line	Windows, Command line
Handles IPv4 and IPv6 with machine-readable output for scripting Removes an entire class of subnetting arithmetic mistakes	Bulk IP and ASN lookups from the terminal Helper tools for CIDR and range conversion
Several unrelated programs share the name ipcalc, which causes confusion Command line only	Lookups depend on the IPinfo online service Tied to a single commercial data provider
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
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 September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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