FATCOUSIN — factsheet ===================== last reviewed: 2026-05-26 site: https://fatcousin.com operated by: FatCousin Labs Inc. launched: 2025 hosting: Vercel stack: Next.js 15 · React 19 · TypeScript · CSS Modules font: IBM Plex Mono (only) source: https://github.com/odneb/FatCousin license: see repository what it is ---------- A public library of single-purpose browser tools that run entirely on the visitor's device. No accounts, no uploads, no telemetry of evidence content. Every tool ships with explicit honest-boundary copy describing what it can and cannot conclude. The largest single surface is FatCousin Forensics — an investigation toolkit organized by case type (business email compromise, ransomware, stalkerware, IPV tech, election integrity, account takeover, crypto theft, mass-exfil) and industry vertical (aviation, maritime, healthcare, eDiscovery, real-estate closings). It ships with full synthetic reference investigations, published per-engine goldens, and replayable case binders. the constraint -------------- Files never leave the device. No uploads. No accounts. No telemetry of evidence content. Enforced by architecture (browser-only, manifest- driven, no server-side processing of user data); verifiable by anyone with browser devtools. contact ------- general / press / partnership / acquisition: labs@fatcousin.com coordinated vulnerability disclosure: labs@fatcousin.com https://github.com/odneb/FatCousin/security/advisories/new https://fatcousin.com/.well-known/security.txt ------ The live tool / category / case-type / proof-scenario counts are rendered on the press page at https://fatcousin.com/press and on the about page at https://fatcousin.com/about. They are computed from machine-readable sources on every build and never hand-written.