Ohnuki-san Lite | chilili kobo - Simple PC System Info

Product Description

"The essential specs you need, when you need them, at top speed."

Ohnuki-san Lite is a completely free Windows utility focused on displaying essential system specifications for everyday PC management and IT inventory auditing. Requiring no installation or registry modifications, simply run the executable from a USB drive or local disk to instantly view and export hardware components, BIOS serial numbers, and OS configuration into clean HTML and Markdown reports.

Zero Installation Required

Runs from a single executable without touching system registry settings. Carry it on a USB flash drive for instant diagnostics on any PC.

Intuitive Immediate UI

Automatically scans hardware and system parameters on launch, opening an organized HTML specification summary directly in your browser.

Markdown & HTML Export

In addition to interactive browser views, generate neat Markdown files that can be pasted directly into Jira, Notion, or internal wikis.

Free for Commercial Use

Free for personal, corporate, and educational use without feature limits or domain membership restrictions.

Key Information Displayed

CPU Model & Cores

Installed RAM Capacity

OS Version & Build

BIOS Serial Number

IP & MAC Address

Drives & Storage Space

Manufacturer & Model

Installed Applications

Hotfixes & Defender

Primary Use Cases

Verifying hardware specifications when purchasing or deploying PCs

Running directly from USB flash drives to build quick device registers

Collecting client environment data (OS build, IP, apps) for IT support

Confirming Windows Defender status and recent security updates

Lite vs. Plus Feature Comparison

Category / Feature	Lite (Free)	Plus (Pro)
Basic Diagnostics & Reports
Core System Specifications (CPU, RAM, OS Build, Serial)
Software Inventory (Installed applications list)
Windows Update History & Defender Status
HTML & Markdown Report Generation
Network & Deep Infrastructure
Basic IP Configuration (IP Address, DNS, etc.)
Corporate Proxy Discovery
Routing Table Analysis (Static Route extraction)
Active Directory Topology & Domain Status
Advanced Analysis & Hardware Devices
Windows Services Inventory (Status, Path, Startup Type)
PnP Device Diagnostics (Full hardware peripherals & IDs)
Server Roles & Features (For Windows Server environments)
Licensing & Operational Terms
Offline Slave Mode Operation		Supported (up to 30 days)
Price	Free	From 500 JPY/mo. (~$3.30 USD)

Learn more about Ohnuki-san Plus & Start Free Trial →

Screenshots

Click any image to enlarge.

Click to Enlarge

Browser-Based Spec Report

A structured system report automatically opens in your default web browser after inspection.

How to Use

Extract & Run

Extract the downloaded ZIP and run the executable.

Auto-Scan

Scans all basic specifications and serial numbers instantly.

View Report

Review the auto-generated HTML report in your browser.

Smooth, zero-configuration execution from start to finish.

Frequently Asked Questions (FAQ)

Yes, Ohnuki-san Lite is 100% free for both personal and corporate use. You can freely use it for IT inventory audits and staging inspections in enterprise environments.

No, it writes zero entries to the Windows registry and does not register background services. To uninstall, simply delete the extracted folder.

Lite focuses on core hardware and software specification inspection. Ohnuki-san Plus adds corporate proxy discovery, static routing tables, Active Directory topology, running Windows services, comprehensive PnP peripherals listing, and offline Slave Mode.

Check PC Specifications Instantly

Portable, zero-install, and 100% free. Download now from GitHub.

Download on GitHub Explore Ohnuki-san Plus

Changelog

v26.7.11.0 2026.07.11
Improved Wi-Fi information collection stability and error handling.
v26.7.4.0 2026.07.04
Data retrieval error details are now documented in detail within the output report.
v26.6.21.0 2026.06.21
Lifted usage restrictions for domain environments.
Added Markdown export functionality.
Migrated Wi-Fi collection pipeline to native Windows APIs for improved robustness.
Other minor bug fixes and stability improvements.
v26.4.25.0 2026.04.25
Added Windows Defender status retrieval and minor bug fixes.
v26.4.23.0 2026.04.23
Implemented offline mode detection.
Added Entra ID (Domain) join status inspection.

Older Release Notes

v26.4.21.0 2026.04.21
Initial release of Ohnuki-san Lite.

Download

Lite Edition

FREE

Get on GitHub

No registration required

Zero advertisements

100% Free for personal and commercial use

Trusted & Featured On

Requirements

OS	Windows 10 / 11
Arch	64-bit (x64)
Runtime	None required (Standalone)

Truly portable. Runs directly from USB drives without installation.