NetworkCalc — IP Subnet Calculator

Name: NetworkCalc — IP Subnet Calculator
Rating: 5 (3 reviews)
Author: networkcalc.borodinskiy.dev

networkcalc.borodinskiy.dev · Developer Tools

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Users

Avg rating

5.0

Ratings

Updated

Aug 26, 2026

Media

1 item

Description

IPv4/IPv6 subnet calculator: CIDR, netmask, VLSM, BGP ASN, prefix-list optimiser, MAC/OUI lookup, cheat sheet, Base64/HEX. 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.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
34
Description length
Characters in the listing description.
822
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
6
Developer website
Listing exposes a developer website URL.
Yes
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
73.4

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.