KLayout Forum

Discussion List

• Feasibility and Approach for Opening GDSII Files in KLayout via Plugin

  200 views 6 comments 0 points Most recent by sekigawa January 12KLayout Development
• Antenna check using 'evaluate_nets'

  133 views 6 comments 0 points Most recent by mole99 January 11Verification
• Modifying PCell parameters

  169 views 1 comment 0 points Most recent by Matthias December 2025KLayout Support
• KLayout DRC .space() algorithm

  201 views 2 comments 0 points Most recent by katherine December 2025KLayout Development
• Image to layout alignment using 3 landmarks registrartion

  477 views 4 comments 0 points Most recent by Matthias December 2025Python scripting
• Want to Open a Custom Extension File from Klayout

  115 views 3 comments 0 points Most recent by Matthias December 2025General
• 'smoothening' jagged edges of a curved line

  243 views 3 comments 0 points Most recent by Matthias December 2025General
• switch layouts but without losing the handle

  168 views 7 comments 0 points Most recent by Matthias December 2025Python scripting
• Ruby macro changes in editor not showing up when running

  77 views 1 comment 0 points Most recent by Matthias December 2025Ruby Scripting
• Bug report: Trying to insert Text on a hidden layer causes crash

  102 views 1 comment 0 points Most recent by Matthias December 2025General
• ERROR ON XSECTION - KLAYOUT 0.29.0

  101 views 3 comments 0 points Most recent by Matthias December 2025KLayout Support
• Accessing "List of Landmarks" from Image import GUI

  94 views 3 comments 0 points Most recent by LeoTrois December 2025Python scripting
• Discontinuities while drawing curves on Nazca

  105 views 2 comments 0 points Most recent by sekigawa December 2025Help wanted, Jobs wanted
• Python thread safety (3.14 freethreading)

  250 views 7 comments 0 points Most recent by Matthias December 2025Python scripting
• How to use “demofab_klayout_colors.lyp”

  156 views 2 comments 0 points Most recent by zakaria December 2025Help wanted, Jobs wanted
• Package's templates

  153 views 4 comments 0 points Most recent by gwondaleya November 2025General
• Extracting device coordinates and obtaining unreduced netlists for Matching/LDE Analysis

  125 views 2 comments 0 points Most recent by Matthias November 2025Verification
• ERROR: Signal number: 11 Address: 0x0 Program Version: KLayout 0.28.12 (2023-09-12 r8212b7c)

  481 views 26 comments 0 points Most recent by Matthias November 2025KLayout Development
• Klayout connect to Bitbucket

  83 views 1 comment 0 points Most recent by Matthias November 2025General
• Batch Mode LVS Fails on Sky130 with "Netlists don't match" -Even with extracted netlist as reference

  153 views 4 comments 0 points Most recent by Matthias November 2025KLayout Support
• Extracting GDS files from Lumerical (FDTD)

  114 views 0 comments 0 points Started by bigChill November 2025 Help wanted, Jobs wanted
• How to add custom libraries

  192 views 2 comments 0 points Most recent by Matthias November 2025General
• KLayout DRC on large layouts

  431 views 8 comments 0 points Most recent by Matthias November 2025KLayout Support
• How to export size of layer for over 1000 GDS files?

  153 views 7 comments 0 points Most recent by jiunnweiyeh November 2025Ruby Scripting
• IQM looking for a Software Engineer to develop KQCircuits - a KLayout plugin

  177 views 1 comment 0 points Most recent by PavelSmirnov November 2025Help wanted, Jobs wanted
• DRC runs much slower in deep mode compared to default (flat) mode

  176 views 3 comments 0 points Most recent by Matthias November 2025Verification
• how to create a layer properties file ".lyp"?

  582 views 5 comments 0 points Most recent by blueman_44 November 2025KLayout Development
• PCell tweaking UI/UX issues, ideas & proposals

  114 views 1 comment 0 points Most recent by Matthias November 2025KLayout Development
• Key-bindings for display Back and Forward - glitch?

  122 views 5 comments 0 points Most recent by Matthias November 2025KLayout Support
• Length values in expressions using TilingProcessor

  190 views 10 comments 0 points Most recent by mole99 October 2025Ruby Scripting