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Gerbvは、オープンソースのガーバーファイル (RS-274Xのみ)ビューアです。Gerbvは、いくつかのファイルを読み込み、画像等で表示することができます。ガーバーの閲覧を行うだけでなく、pick-placeファイルと同様にExcellon drillファイルとして表示することもできます。

gEDA is a suite of electronic design automation (EDA) tools. Currently, the project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.

FidoCadJ is a very easy-to-use editor, with a library of electrical symbols and footprints (through hole and SMD). Drawings can be exported in several graphic formats (PDF, EPS, PGF for LaTeX, SVG, PNG, and JPEG). Although very simple and not relying on any netlist concept, FidoCadJ can be considered a basic electronic design automation program. FidoCadJ uses a file format containing only UTF-8 text, which is very compact and suited for copying and pasting with newsgroups and forum messages. This determined its success, as it is quite versatile for simple mechanical drawings as well as for electronics.

Gnu Circuit Analysis Package is a general purpose circuit simulator. It performs nonlinear DC and transient analysis, fourier analysis, and AC analysis. Spice compatible models for the MOSFET (level 1- 7) and diode are included. This project is not based on Berkeley Spice, but some of the models have been derived from the Berleley models. It was formerly known as 'Al's Circuit Simulator'.

Qucs is a circuit simulator with a graphical user

1. It aims to support all kinds of

circuit simulation types, including DC, AC, S-parameter, and harmonic balance analysis.

Electric is a complete EDA system that can handle many forms of circuit design, including Schematic Capture (digital and analog), Custom IC layout, Logic Simulation, Electro-mechanical hybrid layout, Programmable logic (FPGAs) and much more.

Confluence is a functional programming language for reactive system design, including FPGAs, ASICs, and hard-real-time software. Confluence system descriptions have a large information to linecount ratio. It is typically two to five times more compact than Verilog. Confluence can compile a single body of source code into to Verilog, VHDL, C, and NuSMV.

Signs is a development environment for hardware designs in various hardware description languages. The tackled tasks are compilation, synthesis, simulation, and testing of designs. Due to the integration of these main areas, it provides the ability to debug designs in an all-embracing manner by switching between source code, netlist, and simulation. Supported languages include VHDL and the ISCAS benchmark format. Signs comes in two flavors: a command-line only version useful for processing and analyzing large netlists and as an Eclipse plugin for hardware design and simulation.

KiCad EDA is software for the creation of electronic schematic diagrams and printed circuit board artwork. It is a set of four programs and a project manager: Eeschema (schematic entry), Pcbnew (a board editor), Gerbview (a Gerber viewer (photoplotter documents)), and Cvpcb (a footprint selector for components used in the circuit design). Kicad is the project manager. It includes a 3D visualization feature.

Gaphor is a UML modeling tool written in Python (2.2). It utilizes the GTK+ widget library, and is designed to be very extensible.

KTechlab　はマイコンや電子機器用のIDEです。

Tkgateはイベントドリブンのデジタル回路シミュレータで、tcl/tk ベースのグラフィカルなエディターを持っています. TkGate は豊富なプリミティブな回路素子と共に階層設計のためのユーザー定義モジュール をサポートします.