About LexCard

What is LexCard?

LexCard is a free, public-purpose legal access platform for Japanese law. It provides comprehensive access to over 9,000 statutes sourced from the official e-Gov Laws API maintained by the Digital Agency of Japan.

All features are available at no cost, with no registration required. The platform is designed to make Japanese legislation accessible to everyone — legal professionals, researchers, students, and the general public alike.

Core Features

Law Search & Browse
Full-text search across 9,000+ statutes. 50 legal categories, 47 prefectures, and 106 major laws pre-cached on CDN for instant access.
Amendment Drafting
Edit statute text directly in the browser. Auto-generate comparison tables and formal amendment text following legislative drafting conventions.
AI Legal Assistant
AI-powered Q&A, summaries, and recommendations. Vectorize search across 36,000+ articles with multi-model routing (Qwen3 + Llama).
Article Commentary
Publish and browse article-by-article commentary with citations. Community-driven legal annotations.
Law Calendar
Track law promulgation and enforcement dates. Subscribe via iCal for integration with Google Calendar and Outlook.
6-Theme Dark Mode
Full dark mode support with 6 visual themes. Progressive Web App with offline capability.

Operator

CompanyKouna Hime Inc. (こうな姫株式会社)
BrandHIME Systems
LocationShibuya, Tokyo, Japan
ServiceLexCard — Legal Access Platform
Data Sourcee-Gov Laws API (Digital Agency of Japan)
CostFree — all features, no registration required
RevenueNone — public-purpose, non-monetized service

HIME Systems Ecosystem

LexCard is the legal infrastructure layer of HIME Systems. It serves as a public good while also providing the foundational legal data that powers the broader ecosystem.

The HIME Systems ecosystem includes HIME OS (a modular platform for communities, projects, and workspaces), HIME Research (an AI-powered think tank), and other services — all built on the principle that access to information is a fundamental right.

Accessibility

LexCard is committed to meeting WCAG 2.1 Level AA standards. We design for all users, including those with disabilities, visual impairments, motor difficulties, and cognitive differences.

Features include: full keyboard navigation, screen reader support, high-contrast themes, reduced-motion support, and skip-to-content links. If you encounter any accessibility barriers, please contact us.

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