jscad/OpenJSCAD.org

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JSCAD is an open source set of modular, browser and command line tools for creating parametric 2D and 3D designs with JavaScript code. It provides a quick, precise and reproducible method for generating 3D models, and is especially useful for creating ready-to-print 3D designs.

Stars: 3.2k
Forks: 564
Open beginner issues: 0
Indexed issues: 143

Dominant language: JavaScript
License: MIT
Last GitHub push: Feb 22, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

143 open issues indexed

torus() doesn't support passing a center property Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

jscad/OpenJSCAD.org#1476 · 1 comment · Opened Aug 22, 2026
Center object with text editor open Open

renderer

Difficulty 3/5 1-2 days Newbie friendliness 55/100

jscad/OpenJSCAD.org#1454 · 5 comments · Opened Apr 15, 2026
Feature (with implementation): alignTo function Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

jscad/OpenJSCAD.org#1446 · 3 comments · Opened Mar 7, 2026
bug in simple "substract() Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

jscad/OpenJSCAD.org#1439 · 5 comments · Opened Feb 19, 2026
perf(modeling): O(n²) hole assignment in earcut/assignHoles.js Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1428 · Opened Jan 26, 2026
perf(modeling): Expensive string key generation for Map lookups in scissionGeom3.js Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1426 · Opened Jan 26, 2026
perf(modeling): O(n²) indexOf + splice in insertTjunctions.js Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jscad/OpenJSCAD.org#1425 · Opened Jan 26, 2026
perf(modeling): Excessive vec3.create() allocations in extrudeWalls.js Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

jscad/OpenJSCAD.org#1424 · Opened Jan 26, 2026
perf(modeling): Inefficient union-find algorithm in scissionGeom3.js Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1423 · Opened Jan 26, 2026
perf(modeling): O(n²) splice in splitPolygonByPlane.js duplicate removal Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

jscad/OpenJSCAD.org#1421 · 1 comment · Opened Jan 26, 2026
perf(modeling): O(n²) array concatenation in scissionGeom3.js Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

jscad/OpenJSCAD.org#1420 · 3 comments · Opened Jan 26, 2026
https://www.openjscad.xyz/ seems unreachable Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1413 · 4 comments · Opened Dec 15, 2025
Can't change 1st parameter of any projects on https://openjscad.xyz/, it just resets? Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

jscad/OpenJSCAD.org#1411 · 1 comment · Opened Nov 30, 2025
Very first impression of OpenJSCAD Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1399 · 1 comment · 1 reaction · Opened Aug 8, 2025
Three.js scene export to dxf Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1398 · 2 comments · Opened Jul 2, 2025
V3 @jscad/regl-renderer "orbitControls.pan" not working Open

renderer V3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1394 · Opened May 22, 2025
js file fails in bambu studio slicer Open

BUG V2

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1390 · 3 comments · Opened Apr 14, 2025
Test fails in web package Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

jscad/OpenJSCAD.org#1388 · 5 comments · Opened Apr 7, 2025
Adapt Tutorial for V3? Open

V3

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1383 · 1 comment · Opened Feb 21, 2025
Code works in OpenSCAD, but not https://openjscad.xyz/ - it says processing and never completes Open

data import will not fix

Difficulty 4/5 3-5 days Newbie friendliness 32/100

jscad/OpenJSCAD.org#1369 · 1 comment · Opened Nov 27, 2024
Uncaught TypeError in reTesselateCoplanarPolygons Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1360 · 5 comments · Opened Aug 27, 2024
3D quickhull() does not always work correctly when all vertices are in same plane Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jscad/OpenJSCAD.org#1347 · 9 comments · Opened Jun 2, 2024
jscad cli does not work via clean install on fresh linux machine Open

BUG command line app

Difficulty 3/5 1-2 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1342 · 1 comment · Opened May 2, 2024
Keyboard Shortcuts Some Not Working Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1336 · 3 comments · Opened Apr 12, 2024
stl-deserializer having issues with some STLs Open

data import V2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1333 · 5 comments · Opened Apr 1, 2024
V2 backwards compatibility with V1 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1326 · 15 comments · Opened Mar 16, 2024
Feature request: custom mouse controls Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

jscad/OpenJSCAD.org#1319 · 1 comment · Opened Jan 22, 2024
Feature request: openjscad.xyz/?uri= support for "data" scheme in addition to "http(s)" Open

V3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1318 · 7 comments · Opened Jan 16, 2024
JSCAD GUI does not cleanup messages for repeated SHIFT+ENTER on same script Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1317 · Opened Jan 16, 2024
Vertices get merged unexpectedly Open

BUG V2

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1312 · 5 comments · Opened Dec 7, 2023
Geometry is not closed error Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

jscad/OpenJSCAD.org#1311 · Opened Dec 7, 2023
V3: parameter definitions Open

V3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1307 · 1 reaction · Opened Oct 19, 2023
V3 : test IO translations Open

V3

Difficulty 4/5 3-5 days Newbie friendliness 30/100

jscad/OpenJSCAD.org#1295 · Opened Sep 8, 2023
extrudeRotate behavior is unintuitive Open

HELP WANTED V3

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1277 · 2 comments · Opened Aug 13, 2023
Idea: functions to generate the stroke of a path or geom2 Open

V3

Difficulty 5/5 Over a week Newbie friendliness 28/100

jscad/OpenJSCAD.org#1272 · 1 comment · Opened Jul 18, 2023
Changes to package structures Open

V3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1271 · Opened Jul 17, 2023
2D shapes are not being drawn on grid (locally, working on openjscad.xyz) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1264 · 2 comments · Opened Jun 25, 2023
exporting non-STL formats causes slicing issues Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1262 · 9 comments · Opened Jun 24, 2023
V3 : eliminate circular dependencies Open

V3

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jscad/OpenJSCAD.org#1258 · 1 comment · Opened Jun 18, 2023
trying to extrude an SVG ends up with weird non-solid object that behaves unexpectedly Open

BUG V2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1253 · 10 comments · Opened May 29, 2023
V2 - extrudeLinear mutates the input 2d shape Open

BUG

Difficulty 3/5 1-2 days Newbie friendliness 42/100

jscad/OpenJSCAD.org#1251 · 3 comments · Opened May 23, 2023
Suggestion for V3 API Open

V3

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1249 · 2 comments · 1 reaction · Opened May 17, 2023
Add a button to render Open

new feature user interface

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1245 · 1 comment · 2 reactions · Opened May 9, 2023
Export image Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1243 · 4 comments · Opened May 6, 2023
x3d-serializer improvements Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1235 · 2 comments · Opened Apr 22, 2023
TypeError: generalize is not a function Open

BUG

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1227 · 2 comments · Opened Apr 9, 2023
Offset inner corner behavior Open

2d geometry BUG

Difficulty 4/5 3-5 days Newbie friendliness 45/100

jscad/OpenJSCAD.org#1220 · Opened Mar 24, 2023
V3: does not start the web UI Open

V3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jscad/OpenJSCAD.org#1217 · 4 comments · Opened Mar 14, 2023
V3: revisit using 'properties' to maintain colors, etc. on geometries Open

V3

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1205 · 2 comments · Opened Feb 6, 2023
V3: optimize extrudeLinearGeom2 Open

V3

Difficulty 5/5 Over a week Newbie friendliness 25/100

jscad/OpenJSCAD.org#1204 · Opened Feb 6, 2023

jscad/OpenJSCAD.org

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