KLayout is a GDS and OASIS file viewer and editor. This is a mask layout viewer and editor for the chip design engineer.
This is free and open source software.
Key Features
- General:
- Fast and accurate: fast loading and drawing.
- Support of GDS and OASIS file formats with automatic uncompression of zlib compatible formats.
- Full support of properties.
- Full 64 bit support on Linux.
- Extensible and configurable to a large degree by custom Ruby or Python scripts.
- Integrated development environment for Ruby and Python scripts.
- Viewer:
- Overlay capabilities: multiple layouts can be loaded into one window.
- Very flexible layer configuration: many display options including choice of fill pattern and different frame and fill colors. Animation, transparency, dimming/highlighting …
- Layer grouping: the display properties of a group of layers can be changed at once.
- Advanced layer display attributes: layers can be named, they can carry additional transformations, select certain hierarchy levels or select shapes by their properties.
- Copy and paste of layers attributes to other panels.
- Drawing order: select the layer that is show on top.
- Descend into hierarchy: show a cell embedded into it’s context.
- Flexible rulers: unlimited count, flexible display styles. Multiple templates can be configured, rules can be edited (move, delete, copy & paste).
- Shape and instance browsers.
- Bookmarks, various zoom modes, mouse wheel support, screenshot function …
- Undo/redo on layer properties, for rulers …
- Save: save layout or parts (cells, layers) of it to a different format, with scaling or different database unit.
- Image overlay capabilities: image files (i.e. jpg, png, gif) can be loaded and placed at an arbitrary position in the layout.
- Marker browser: certain error report files can be loaded and a browser tool is provided.
- Global transformation to flip/rotate image.
- Editor:
- Smart drawing functions with many options: angle constraints, grid …
- True, in-place editing in subcells, variant building function.
- Unlimited undo/redo.
- Smart partial editing function to stretch shapes, move edges or vertices.
- Copy and paste of shapes and whole cells, even to other layouts.
- Many advanced editing functions: hierarchical operations, booleans, clip, corner rounding, sizing, alignment, layer operations …
- Support for external libraries dynamically bound to a layout.
- Parametrizable cells (PCells).
- A variety of useful utility functions: a XOR tool, a layout diff tool, a fill tool …
- A DRC feature with a basic set of verification and layer manipulation functions.
- A LVS feature.
- A powerful search and replace feature with a special query language.
- A technology package manager.
- An add-on package manager (“Salt”).
Website: www.klayout.de
Support:
Developer: Matthias Köfferlein
License: GNU General Public License v2.0
KLayout is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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