Kicad.org
KiCad EDA - Schematic Capture & PCB Design Software
KiCad is free, open-source software for designing electronic schematics and printed circuit boards (PCBs) with powerful tools for all skill levels.
Design PCBs and schematics for free
KiCad is an open-source platform that lets you design electronic schematics and printed circuit boards (PCBs) on Windows, macOS, and Linux. Whether you're working on a simple circuit or a complex, multi-sheet project, KiCad provides all the tools you need for schematic capture, symbol creation, and PCB layout.
You can use its integrated simulator and rules checker to verify your designs, and even view your boards in 3D before manufacturing. The site offers extensive documentation, a helpful community, and thousands of ready-made components, making it a great resource for hobbyists, students, and professional engineers alike.
Best of all, KiCad is completely free and open-source, so you can download it, contribute to its development, and use it for any project without restrictions.
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スター精密株式会社の公式サイト。小型プリンターや自動旋盤、カードリーダーなどの製品情報やサポート、企業情報を提供（日本語）。