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Dev tools · alternatives · 2026

24 alternatives to SubnetLens – OSS local network scanner built in Go with a TUI

A fast, concurrent network scanner with a TUI and plain-text CLI, built in Go. It discovers live hosts on your network, scans their open ports, resolves hostnames, and fingerprints operating systems—delivered. - ostefani/subnetlens

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Local Area Network discovery tool with an interactive Terminal User Interface (TUI) written in Go. Discover, explore, and understand your LAN in an intuitive way. Knock Knock.. who's there? 🚪 - ramonvermeulen/whosthere

    Jan 2026 · github.com · its alternatives →

  2. 2

    Hey HN, we built Subtrace (https://subtrace.dev) to let you see all incoming and outgoing requests in your backend server—like Wireshark, but for Docker containers. It comes with a Chrome DevTools-like interface. Check out this video: https://www.youtube.com/watch?v=OsGa6ZwVxdA, and see our docs for examples: https://docs.subtrace.dev. Subtrace lets you see every request with full payload, headers, status code, and latency details. Tools like Sentry and OpenTelemetry often leave out these crucial details, making prod debugging slow and annoying. Most of the…

    2025 · github.com · its alternatives →

  3. 3

    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 →

  4. 4

    Subscan is a Go-based CLI tool that helps bug bounty hunters and pentesters with subdomain discovery (passive and brute-force), scoring (HTTP/TLS/CNAME), and misconfig probes (takeovers, open .envs, S3 buckets, etc). Output formats include JSON/CSV/HTML/Markdown. GitHub: https://github.com/omerimzali/subscan Looking for feedback!

    2025 · github.com · its alternatives →

  5. 5

    I built LocalGPT over 4 nights as a Rust reimagining of the OpenClaw assistant pattern (markdown-based persistent memory, autonomous heartbeat tasks, skills system). It compiles to a single ~27MB binary — no Node.js, Docker, or Python required. Key features: - Persistent memory via markdown files (MEMORY, HEARTBEAT, SOUL markdown files) — compatible with OpenClaw's format - Full-text search (SQLite FTS5) + semantic search (local embeddings, no API key needed) - Autonomous heartbeat runner that checks tasks on a configurable interval - CLI + web interface + desktop GUI - Multi-provider:…

    Feb 2026 · github.com · its alternatives →

  6. 6

    The top-like text-based user interface for Austin. Contribute to P403n1x87/austin-tui development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  7. 7

    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 →

  8. 8

    A hackable, minimal, fast TUI file explorer. Contribute to sayanarijit/xplr development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  9. 9
    Tiny Scan▲157

    Effortlessly dive into URL details

    2024 · tiny-scan.com · its alternatives →

  10. 10

    We built Gonzo to make log analysis faster and friendlier in the terminal. Think of it like k9s for logs — a TUI that can ingest JSON, text, or OpenTelemetry (OTLP) logs, highlight and boil up patterns, and even run AI models locally or via API to summarize logs. We’re still iterating, so ideas and contributions are welcome!

    2025 · github.com · its alternatives →

  11. 11

    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 →

  12. 12

    Kubernetes TUI you can click. Instant search, logs/exec/port-forward, 7 themes, context-aware AI. Single Go binary. - p10node/k10s

    15d ago · github.com · its alternatives →

  13. 13

    List, wake and scan nodes in a network. Contribute to pojntfx/liwasc development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  14. 14
    Netfox▲95

    Netfox turns raw network data into plain English on your Mac: decode every device, see what it exposes, and catch the services you didn’t mean to leave open. No cloud, no account.

    May 2026 · netfox.app · its alternatives →

  15. 15

    A global server network in your command line

    2018 · perfops.net · its alternatives →

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  17. 17

    Contribute to letientai299/7guis development by creating an account on GitHub.

    2022 · github.com · its alternatives →

  18. 18

    Last month, I started learning a Python TUI framework called Textual. After working on a 4x4 board game, I made an interactive app to test your CLI text processing skills with 40 beginner to intermediate level exercises. The app is fairly basic in terms of features — only single input file, so no stdin data, multiple files, etc. Most of the exercises in this app is based on my Computing from the Command Line ebook (https://learnbyexample.github.io/cli-computing/preface.html). I hope to improve the TUI app to support all the 200+ exercises sometime next year.

    2022 · github.com · its alternatives →

  19. 19

    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 →

  20. 20

    A global DNS propagation checker that gives pretty output. Written in dotnet core - unfrl/dug

    2021 · github.com · its alternatives →

  21. 21

    Onboard-CLI—a blazing-fast developer tool I built in Go. It uses AST parsing (Tree-sitter) to map out codebase architecture and automatically blocks spaghetti code and bad dependencies locally before you even commit. I heavily optimized the concurrency, so it can parse 50k+ files in under 10 seconds.

    Jul 2026 · github.com · its alternatives →

  22. 22

    A paste tool written in Golang (plus some API libraries for pastebin like sites). - bearbin/go-paste

    2014 · github.com · its alternatives →

  23. 23

    I often reached for `socat` when I needed to forward a TCP port from my local machine for testing, and I was curious how easy it was to write such a utility in Go. At 105 lines of Go, it was easy enough. It has limited functionality - TCP only, no port mapping, binds to all local network interfaces - but it serves its purpose, so I wanted to share this with others.

    2024 · github.com · its alternatives →

  24. 24

    Hi All, I felt like I was re-inventing the wheel by bolting similar channel architectures onto different Go structs repeatedly so I decided to extract some common types into into one library so that they would be easier to re-use: - oneshot - spsc - spmc - mpsc - mpmc - broadcast - watch The types are inspired by Rust channels so if you're coming from Rust they should feel familiar. So far I'm really enjoying using them but it'd be great to get some external feedback if you have time! https://github.com/amorey/gochan Andres

    May 2026 · github.com · its alternatives →

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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 →