NetworkCalc — IP & Subnet Tools

Name: NetworkCalc — IP & Subnet Tools
Rating: 5 (3 reviews)
Author: Borodinskiy

IP & Subnet calculator, CIDR tools, MAC lookup, Base64/HEX encoders — all-in-one extension for network engineers.

As of June 2026, NetworkCalc — IP & Subnet Tools has 62 users and a 5.00/5 rating from 3 reviews in the Developer Tools category.

Borodinskiy Developer Tools

Chrome Web Store ↗.crx

Users−7.5%

Rating0%

5.00

3 reviews

Reviews0%

Version

1.3

Manifest V3

History

5 snapshots

Tracking since Apr 18, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 18, 2026	67	5.00	3	1.3
May 3, 2026	55	5.00	3	1.3
May 12, 2026	60	5.00	3	1.3
May 24, 2026	54	5.00	3	1.3
Jun 6, 2026	55	5.00	3	1.3
Now	62	5.00	3	1.3

Permissions & access

Permissions: storagesidePanel
Host access: None declared

Screenshots

NetworkCalc — IP & Subnet Tools screenshot 1

About

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.