ThreatChain
Free threat intel: 6.9M malware hashes + open-source SIEM
What it does
Got a suspicious file? Search its hash against 6.9M known malware samples in 3 seconds. Free, no signup needed. We also built a free open-source SIEM that installs in 60 seconds with one command — includes AI threat detection, 52 detection rules, vulnerability scanning against 27K+ CVEs, and tamper-proof blockchain log anchoring. Security tools cost $2K+/month. Ours are free. Because threat intelligence should be a public good, not a paywalled luxury.
Does the same job
all alternatives →- COCost of a 51% Attack on Popular Cryptocurrencies2018 · crypto51.app · ▲581
- AAAI agents run my one-person company on Gemini's free tier – $0/monthMar 2026 · ▲16
I'm a solo dev in Taiwan. I built 4 AI agents that handle content, sales leads, security scanning, and ops for my tech agency — all on Gemini 2.5 Flash free tier (1,500 req/day). I use ~105. Monthly LLM cost: $0. Architecture: 4 agents on OpenClaw (open source), running on WSL2 at home with 25 systemd timers. What they do every day: - Generate 8 social posts across platforms (quality-gated: generate → self-review → rewrite if score < 7/10) - Engage with community posts and auto-reply to comments (context-aware, max 2 rounds) - Research via RSS + HN API + Jina Reader → feed…
- FSFree secrets scanning for unlimited private GitHub repos2022 · arnica.io · ▲19
My name is Nir! I am one of the three co-founders of arnica.io. I’ve worn many hats in cyber security over the years – sys admin, pen-tester, security architect, and Chief Information Security Officer (CISO). What really gets me excited about my work is making security easy and effective for developers and ops teams! In my last role, at one of the top 3 FinTechs, following the attack against Solarwinds, the CEO asked me what we are doing to secure our software supply chain. I met with 15+ vendors, did a few POCs, but unfortunately each solution either increased operational cost or was too…
More dev tools this month
the category →
The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Launched alongside, April 2026
the whole month →
- AG
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
- IB
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
- BC
Life & fun · Apr 2026 · sam-burns.com
- IB
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app