Overview
IPv4 & IPv6 subnet calculator: CIDR, netmask, wildcard, host range, subnet split, MAC/OUI vendor lookup, Base64/HEX/URL.
NetworkCalc — IP & MAC Network Calculator (Inspired by sipcalc) NetworkCalc is a multifunctional network analysis tool built into your browser. Inspired by the popular Linux utility sipcalc, this extension offers powerful tools for: - IPv4 and IPv6 address breakdown and subnet calculations - CIDR-to-netmask conversion and subnet membership checks - IPv6 subnet splitting and address expansion - MAC address tools with vendor (OUI) lookup - Encoding/decoding utilities: Base64, Hex, URL, ASCII, MD5 Perfect for network engineers, sysadmins, pentesters, and students. Some features require a license key (available via Boosty or Patreon). No cloud. Everything runs locally in your browser.
Details
- Version1.4
- UpdatedJuly 12, 2026
- FeaturesOffers in-app purchases
- Size4.37MiB
- Languages6 languages
- DeveloperWebsite
Email
anton.borodinskiy@mail.ru - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
