alt Hacker NewsI got tired of expensive SaaS tools that want my sensitive documents in their cloud. I built ArkhamMirror to do forensic document analysis 100% locally, free and open source.
What makes this different:
Air-gapped: Zero cloud dependencies. Uses local LLMs via LM Studio (Qwen, etc.)
ACH Methodology: Implements the CIA's "Analysis of Competing Hypotheses" technique which forces you to look for evidence that disproves your theories instead of confirming them
Corpus Integration: Import evidence directly from your documents with source links
Sensitivity Analysis: Shows which evidence is critical, so if it's wrong, would your conclusion change?
The ACH feature just dropped with an 8-step guided workflow, AI assistance at every stage, and PDF/Markdown/JSON export with AI disclosure flags. It's better than what any given 3-lettered agency uses.
Tech stack: Python/Reflex (React frontend), PostgreSQL, Qdrant (vectors), Redis (job queue), PaddleOCR, Spacy NER, BGE-M3 embeddings.
All MIT licensed. Happy to answer questions about the methodology or implementation! Intelligence for anyone.
Links: Repo https://github.com/mantisfury/ArkhamMirror
ACH guide with screenshots at https://github.com/mantisfury/ArkhamMirror/blob/reflex-dev/d...
Replies
I've been poking at something like this for a while now, almost exactly the same intention. I'm gonna try and contribute instead, this rules.
What field are you in, sounds interesting that one would need such a tool?
Excellent! Thank you for releasing this.
Notice the "Knowledge Graph" feature that lets you "Visualize hidden connections between People, Orgs, and Places" just like the cork board meme.
This is the essence of what good "conspiracy theorists" do. Whenever investigative journalists uncover a conspiracy among the elite, they are talked down to and dismissed as "conspiracy theorists". But that is what good conspiracy theorists are: investigative journalists.
Ironically, is there a way to try this out in the cloud for people who want this tool who aren’t hyper worried about security?
It looks cool.