Windows · Free download · Graphics Editing and Painting

KLayout0.25.7

KLayout : Load, visualize and edit GDS and OASIS files within a streamlined user interface by relying on this straightforward piece of software

Operating system
Windows 10/11
File size
96.1 MB
License
Freeware
Last updated
Apr 28, 2026

115 downloads·787 page views

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Overview

What is KLayout?

KLayout : Load, visualize and edit GDS and OASIS files within a streamlined user interface by relying on this straightforward piece of software

In depth

A closer look at KLayout

With planar geometric shapes, text labels and other relevant information stored within, both GDS and OASIS formats are two of the most commonly used formats for representing and expressing electronic patterns for integrated circuits and chipsets.KLayout is an intuitive piece of software that is designed from the ground up to not only make it as simple as possible for you to view GDS and OASIS files but also to effortlessly edit them or actually build layout designs from scratch.

Get started with this streamlined tool in just a couple of seconds

Subsequent to a smooth installation process and upon launching the app, you are greeted by a clear-cut and well thought-out user interface, with almost all the app's important features right on display and within effortless reach.Probably the first thing that you should know is the fact that the utility works just fine with multiple layouts at the same time, in the same window. Upon close inspection, you can discover that the app packs a useful set of features for both viewing and editing layout files.

Broad viewing features

This said, thanks to its built-in layer configurator, you can view the fill patterns and colors, customize animations, transparency levels, the properties of a group of layers and rename, copy, paste and remove layer attributes.Flexible rulers, shape and instance browsers, multiple zoom modes, screenshots features, support for bookmarks are also part of KLayout's feature list.

Simple and efficient editing functions

What is more, you can take advantage of the image overlay capabilities and load and place PNG, JPG and GIF files over your projects.When it comes to the editing features, you should be pleased to hear that the app comes with a wide selection of smart drawing tools, with support for hierarchical and other, advanced, layer operations.

Efficient tool for integrated circuits and chip designers

Taking everything into consideration, KLayout is an efficient and trustworthy tool for both editing and viewing GDS and OASIS files.With its extensive set of features, it should be enough for the large majority of users looking to work with integrated circuits layouts but, if this is not the case, you can extend the app's capabilities to a great extent with the help of custom Ruby scripts. You can download both the installer and portable editions from this page.

Requirements

System requirements

Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8

Verdict

Should you download KLayout?

KLayout runs on Windows 10/11 and is available under the Freeware license — the installer is 96.1 MB. We’ve catalogued it under Graphics Editing and Painting.

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At a glance

KLayout specifications

Publisher
Matthias Kofferlein
Last updated
Apr 28, 2026
Requirements
Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8
License
Freeware
Operating system
Windows 10/11
File size
96.1 MB
Price
Free
Page views
787

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