Alternatives
Products that do what Subnet Mask Calculator does
Free networking calculators for CCNA students & engineers
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Fast Subnetting & IP Range Calculation for Engineers
13d ago · jodies.de
- 2IM
2022 · networksfromscratch.com
- 3

Calculate IP subnets easily with Subnet Calculator.
Apr 2026 · geteasetools.com
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- 5AT
Hi everyone, I recently published a small open-source project. It’s a minimal network packet analyzer written in Go — designed more like a learning toy than a replacement for Wireshark. It currently supports parsing basic protocols like TLS, DNS, and HTTP, and includes a tiny fuzzing engine to test payload responses. You can inspect raw packet content directly from the terminal. The output is colored for readability, and the code structure is kept simple and clear. The entire program is very small — just about 400 lines of Go code. I know it’s not anywhere near Wireshark’s level, and I still…
2025 · github.com
- 6SC
2021 · jvsg.com
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- 8SS
2016 · subnet.im
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- 10RL
I had a work objective that required me to be able to "slice" a subnet by a smaller subnet and I didn't manage to find any other libraries that accomplish this kind of computation so I set out to write one myself. Supports calculating CIDR unions, differences, and complements. The rest of the existing set operations don't really make sense for CIDRs since the only way they can overlap is if one fully contains the other (or they are equivalent). I figured a binary tree-like data structure would be the most memory efficient way to represent this, but I'm super open to any feedback especially…
2023 · github.com
- 11VD
2020 · houqp.github.io
- 12IM
2022 · paylesstoaws.com
- 13AC
2016 · serverlesscalc.com
- 14BS
2020 · github.com
- 15AD
2018 · cdnperf.com
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29 free calculators that show their work — no black boxes
25d ago · calculatorcenter.online
- 18

- 19AC
2015 · abtestcalculator.com
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Free fast accurate. Data-driven decisions with confidence
Nov 2025
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- 24CA
2015 · protonome.com
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