Dev tools · alternatives · 2026
24 alternatives to Subnet Ninja
Free IPv4. Pro: AWS/Azure/GCP + CIDR split + overlap.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Free subnet calculator for IPv4 and IPv6. Get the network address, broadcast, mask, wildcard and usable host range instantly. CIDR cheat sheet included.
2016 · subnet.im · its alternatives →
- 2
Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.
2023 · ip.guide · its alternatives →
- 3
Hi HN — I’m the developer of NetViews, a macOS utility I built because I wanted better visibility into what was actually happening on my wired and wireless networks. I live in the CLI, but for discovery and ongoing monitoring, I kept bouncing between tools, terminals, and mental context switches. I wanted something faster and more visual, without losing technical depth — so I built a GUI that brings my favorite diagnostics together in one place. About three months ago, I shared an early version here and got a ton of great feedback. I listened: a new name (it was PingStalker), a longer trial,…
Feb 2026 · netviews.app · its alternatives →
- 4
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 · its alternatives →
- 5
Instantly compute and visualize CIDR subnets, IP ranges and masks. Free online tool for accurate network design, planning and IT education.
2015 · cidr.xyz · its alternatives →
- 6
Hi HN - I’m the developer of PingStalker, a macOS utility I built to see what’s really happening on the LAN/WLAN. I live in the CLI, but when it came to discovery and monitoring, I found it limiting. So I built a GUI that brings my favorite tools together in one place. PingStalker started because I wanted to know if something on the network was scanning my machine. I also wanted quick access to core details—external IP, Wi-Fi data, and local topology. Then I wanted more: fast, reliable scans using ARP tables and ICMP. As a Wi-Fi engineer, I couldn’t stop there. I kept adding ways to…
Nov 2025 · pingstalker.com · its alternatives →
- 7
IP address anonymizer module for nginx. Contribute to masonicboom/ipscrub development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 8
Netler▲107Tiny network monitor for menu bar & notification center 🖥📡
2018 · imagetasks.com · its alternatives →
- 9
Hi HN, To truly understand how operating systems and network protocols work, I decided to combine two classic learning tools: the xv6 teaching OS and a from-scratch TCP/IP stack. I'm excited to share the result: my own from-scratch TCP/IP networking stack running directly inside the xv6-riscv (https://github.com/pandax381/xv6-riscv-net) kernel. The project uses a modern virtio-net driver, allowing it to run seamlessly in QEMU and communicate with the host machine. Key features: - From-Scratch Stack: The core is powered by microps…
2025 · github.com · its alternatives →
- 10
User space WireGuard port-forward in Rust. Contribute to aramperes/onetun development by creating an account on GitHub.
2021 · github.com · its alternatives →
- 11
Simple, auditable & elegant VPN, built with TLS mutual authentication and TUN. - twitchyliquid64/subnet
2017 · github.com · its alternatives →
- 12BT
Jan 2026 · bustermq.sh · its alternatives →
- 13
A Short IPv6 Guide for Home IPv4 Admins. GitHub Gist: instantly share code, notes, and snippets.
2024 · gist.github.com · its alternatives →
- 14
Fast IP to CIDR lookup in Golang. Contribute to yl2chen/cidranger development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 15
Calculate IP subnets easily with Subnet Calculator.
Apr 2026 · geteasetools.com · its alternatives →
- 16
I found hping3 and nmap's nping to be far too slow in terms of sending individual, bare-minimum (40-byte) TCP SYN packets; other than inefficient socket I/O, they were also attempting to do far too much unnecessary processing in what should have otherwise been a tight execution loop. Furthermore, none of them were able to handle CIDR notations (i.e., a range of IP addresses) as their source IP parameter. Being intended for embedded devices (e.g., low-power MIPS/Arm-based routers), Blitzping only depends on standard POSIX headers and C11's libc (whether musl or gnu). To that end,…
2024 · github.com · its alternatives →
- 17
Hello! I'm learning Rust and also information security, so what better way to learn than to put a tool together practicing both skills? I've tried to use a couple of different tools for subdomain enumeration (part of the Discovery-party when it comes to penetration testing), but none of them were very fast, even if the DNS resolver I pointed them towards is, so I wrote my own tool that leverages concurrency to check a lot of subdomains, fast! It's written in Rust, main parts being using Tokio and async_channels, and I think it works good enough for a first release. I wanted to get recursive…
2022 · github.com · its alternatives →
- 18
Fast Subnetting & IP Range Calculation for Engineers
Aug 2026 · jodies.de · its alternatives →
- 19
- 20
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 · its alternatives →
- 21
IPSuite▲4Zero-backend IP routing, subnet, and reverse DNS suite.
Jun 2026 · ipsuite.io · its alternatives →
- 22
This code is still in early beta, but i sincerley hope it will become as ubiquitous as VIM on Linux.
2024 · github.com · its alternatives →
- 23
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links: GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-server What's working: Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator…
2025 · github.com · its alternatives →
- 24
2019 · github.com · its alternatives →
Also compare
- Simple Subnet Network Tool alternatives
- IP Guide – Info on IP addresses, Networks, and ASNs alternatives
- I built a macOS tool for network engineers – it's called NetViews alternatives
- A toy version of Wireshark (student project) alternatives
- Interactive IP/CIDR range visualizer alternatives
- PingStalker – A macOS tool for network engineers alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →