KLayout Forum

Discussion List

• FOR NEW APPLICANTS: you will need to do better than ChatGPT

  Announcement Closed 5.5K views 1 comment 0 points Started by klayoutadmin December 2015 General
• Feasibility and Approach for Opening GDSII Files in KLayout via Plugin

  71 views 5 comments 0 points Most recent by Matthias December 2025KLayout Development
• DRC: get centerline of selected edges

  31 views 1 comment 0 points Most recent by Matthias December 2025Verification
• Modifying PCell parameters

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

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

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

  59 views 3 comments 0 points Most recent by Matthias December 2025General
• Antenna check using 'evaluate_nets'

  35 views 3 comments 0 points Most recent by Matthias December 2025Verification
• Trace path bugfix #2201 now causes trace net to fail?

  101 views 6 comments 0 points Most recent by footang December 2025KLayout Support
• 'smoothening' jagged edges of a curved line

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

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

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

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

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

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

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

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

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

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

  50 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)

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

  46 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

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

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

  60 views 2 comments 0 points Most recent by Matthias November 2025General
• Editor Options showing empty in 0.30.5 version

  81 views 3 comments 0 points Most recent by Matthias November 2025Help wanted, Jobs wanted
• KLayout DRC on large layouts

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

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

  108 views 1 comment 0 points Most recent by PavelSmirnov November 2025Help wanted, Jobs wanted
• New installation - KLayout doesn't run on macOS Monterey (Intel)

  383 views 6 comments 0 points Most recent by sekigawa November 2025KLayout Support
• DRC runs much slower in deep mode compared to default (flat) mode

  88 views 3 comments 0 points Most recent by Matthias November 2025Verification