Scantron – A distributed NMAP/masscan scanner
A distributed nmap / masscan scanning framework complete with scan scheduling, engine pooling, subsequent scan port diff-ing, and an API client for automation workflows. - rackerlabs/scantron
Scantron – A distributed NMAP/masscan scanner launched on June 12, 2020 with 5 votes, #1,395 of 4,317 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 6 years on.
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LocalGPT – A local-first AI assistant in Rust with persistent memoryFeb 2026 · github.com · ▲331I 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:…

Agent-harness-kit scaffolding for multi-agent workflowsMay 2026 · ahk.cardor.dev · ▲82A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.
I wrote a tool in Rust for tracking all allocations in a Linux process2023 · github.com · ▲113allocscope - a memory tracking tool. Contribute to matt-kimball/allocscope development by creating an account on GitHub.

Mcptoon – Token-efficient MCP CLI clientAug 2026 · github.com · ▲73Zero-dep CLI: one MCP config synced to every agent. A 255-tool listing costs 581 tokens, not 71,929 - schemas never enter context. - activeing123/mcptoon
More dev tools this month
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open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 27d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 25d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 22d ago · openbot.run
Talanoa▲343Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 20d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, June 2020
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A fun diverse library of 3D avatars for your design mockups.
Work · 2020 · amrit.art

Unim.Press is a Reddit reader in the style of a certain classic metropolitan newspaper
Life & fun · 2020 · unim.press

Hacker News front page in the style of a print newspaper
Life & fun · 2020 · wolfgangfaust.com