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donalffons
opencascade.js
Python2021–2022
donalffons / opencascade.js

opencascade.js

Port of the OpenCascade CAD library to JavaScript and WebAssembly via Emscripten.

4Distinct people
5Mentions
0Explicit recommenders
946GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Port of the OpenCascade CAD library to JavaScript and WebAssembly via Emscripten.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week5 dated mentions

Observed mentions: 2021-12-18 20:22:01 UTC to 2022-03-09 20:51:47 UTC. Weeks start Monday, UTC.

0122021-12-13 00:00:00 UTC to 2021-12-20 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsDec 132021-12-20 00:00:00 UTC to 2021-12-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-12-27 00:00:00 UTC to 2022-01-03 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-03 00:00:00 UTC to 2022-01-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-10 00:00:00 UTC to 2022-01-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-17 00:00:00 UTC to 2022-01-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-24 00:00:00 UTC to 2022-01-31 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJan 242022-01-31 00:00:00 UTC to 2022-02-07 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2022-02-07 00:00:00 UTC to 2022-02-14 00:00:00 UTC (exclusive): 2 mentions; 2 submissions, 0 comments2022-02-14 00:00:00 UTC to 2022-02-21 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-02-21 00:00:00 UTC to 2022-02-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-02-28 00:00:00 UTC to 2022-03-07 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-03-07 00:00:00 UTC to 2022-03-14 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMar 7

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Dec 132021-12-13 00:00:00 UTC2021-12-20 00:00:00 UTC110
Dec 202021-12-20 00:00:00 UTC2021-12-27 00:00:00 UTC000
Dec 272021-12-27 00:00:00 UTC2022-01-03 00:00:00 UTC000
Jan 32022-01-03 00:00:00 UTC2022-01-10 00:00:00 UTC000
Jan 102022-01-10 00:00:00 UTC2022-01-17 00:00:00 UTC000
Jan 172022-01-17 00:00:00 UTC2022-01-24 00:00:00 UTC000
Jan 242022-01-24 00:00:00 UTC2022-01-31 00:00:00 UTC000
Jan 312022-01-31 00:00:00 UTC2022-02-07 00:00:00 UTC101
Feb 72022-02-07 00:00:00 UTC2022-02-14 00:00:00 UTC220
Feb 142022-02-14 00:00:00 UTC2022-02-21 00:00:00 UTC000
Feb 212022-02-21 00:00:00 UTC2022-02-28 00:00:00 UTC000
Feb 282022-02-28 00:00:00 UTC2022-03-07 00:00:00 UTC000
Mar 72022-03-07 00:00:00 UTC2022-03-14 00:00:00 UTC101

What Hacker News says

5 sources
That confirms the impression I had, I guess they are just so complex that building a new open source one from scratch would be Herculean effort. Guess OCCT is the only option for now. The itch I would love to scratch is an online real-time collaborative parametric cad app using CRDTs. Current thinking is combining OpenCascade compiled to WASM [0] with Yjs[1], but frankly don’t have the time. A kind of Figma but for 3D cad. (There is obviously onShape but I’m thinking something a little simpler) 0: https://github.com/donalffons/opencascade.js/ 1: https://github.com/yjs/yjs
In CadQuery –- A Python parametric CAD scripting framework based on OCCT

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