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Graph Kobo（株式会社グラフ工房） is a small Japanese technology company. Its core products include FTAStudio, Layout Server, and the open-source graphics editors Dynamic Draw/DD Thought Tickler, which support its development work. In the developer tools category, this is not a general-purpose IDE or DevOps platform, but rather a specialized toolset for reliability engineering, quality analysis, and tree-structure visualization.
FTAStudio covers FTA fault tree analysis and FMEA table creation. It can create FT diagrams and FMEA tables, with support for high-speed automatic layout, one-click node insertion, switching between vertical/horizontal layouts and JIS/simple styles, automatic probability calculation, minimal cut sets, printing, event tables, fault tree filtering, and cross-file search. On the FMEA side, it supports custom column formats, autocomplete, selection from definition tables, automatic matrix input, reference search across existing FMEA tables, and Excel import/export. A particularly useful feature is the linkage between FTA and FMEA data, which can reduce duplicate maintenance in engineering analysis workflows.
Layout Server is the more developer-oriented integration component: a web server sends CSV data, specifies zoom and cropping ranges, and receives a tree diagram image in return. It can be used to display large trees with thousands of nodes in a browser. The text clearly describes it as a Web API and provides PHP and .NET Framework communication templates, but does not disclose authentication, rate limits, protocol details, or SDK documentation. FTAStudio is mainly a Windows desktop application and requires Excel 2013 or later. Layout Server is offered via server rental or cloud service, while self-hosting capabilities are not clearly stated.
FTAStudio pricing is transparent: the standard version costs 50,600 yen including tax, and the USB key version costs 60,500 yen including tax; both include 365 days of maintenance. Additional maintenance costs 13,200 yen. Volume licensing, network licenses, and Layout Server pricing require inquiry. The website provides a support center, downloads, FAQ, update history, and trial version access. Version updates were still being released in 2024, indicating that maintenance is ongoing.
Its strengths are comprehensive functionality for specialized scenarios, good Excel/CSV interoperability, and strong automatic tree-layout capabilities. Its drawbacks are that the platform is mainly limited to Windows, international documentation is limited, and the commercial terms for the API and cloud service are not transparent. It is suitable for automotive, manufacturing, equipment, and safety/quality teams, as well as development teams that need to embed large hierarchical trees into web systems.
The crawled text does not provide information about network access from China, payment options, or local代理/support, so its accessibility from China is rated as unknown. Chinese teams considering procurement should confirm Japanese-language communication requirements, payment, invoicing, cloud service connectivity, and whether local alternatives for FTA/FMEA or general-purpose tree visualization would be viable.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on graphkobo.com official site.
graphkobo.com is an Japan Dev Tools provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach graphkobo.com directly.