Repositories list

• jsource

  Public
  J engine source mirror

  C

  •

  Other

  •111111 forks•738738 stars•4141 issues•00 pull requests•Updated Aug 16, 2026Aug 16, 2026

• base9

  Public
  J9 base library

  J

  •1212 forks•3030 stars•00 issues•11 pull request•Updated Aug 14, 2026Aug 14, 2026

• data_jd

  Public
  Jd

  J

  •66 forks•1414 stars•00 issues•00 pull requests•Updated Jul 26, 2026Jul 26, 2026

• data_jmf

  Public
  J Memory Mapped File

  J

  •

  MIT License

  •11 fork•44 stars•00 issues•00 pull requests•Updated Jul 24, 2026Jul 24, 2026

• ide_jhs

  Public
  JHS IDE

  J

  •77 forks•1414 stars•11 issue•11 pull request•Updated Jul 22, 2026Jul 22, 2026

• jinstall

  Public
  J installers

  Shell

  •22 forks•00 stars•11 issue•00 pull requests•Updated Jul 20, 2026Jul 20, 2026

• juno

  Public
  Online J IDE

  JavaScript

  •

  GNU Affero General Public License v3.0

  •22 forks•44 stars•11 issue•00 pull requests•Updated Jul 18, 2026Jul 18, 2026

• demos_wdplot

  Public
  Plot demos wd emulation

  J

  •

  MIT License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Jul 6, 2026Jul 6, 2026

• debug_dissect

  Public
  Run a sentence and produce a 2D display of results

  J

  •

  MIT License

  •00 forks•11 star•22 issues•00 pull requests•Updated Jun 30, 2026Jun 30, 2026

• data_dict

  Public
  Dictionary addon

  J

  •

  MIT License

  •00 forks•11 star•00 issues•00 pull requests•Updated Jun 28, 2026Jun 28, 2026

• qtide

  Public
  Qt IDE

  C++

  •

  Other

  •1313 forks•4646 stars•66 issues•00 pull requests•Updated Jun 24, 2026Jun 24, 2026

• graphics_graphviz

  Public
  Graph Visualization

  J

  •

  Other

  •00 forks•00 stars•00 issues•00 pull requests•Updated Jun 18, 2026Jun 18, 2026

• j-playground

  Public
  J playground

  webassemblywasm

  webassemblywasm

  J

  •66 forks•1313 stars•3131 issues•00 pull requests•Updated May 29, 2026May 29, 2026

• api_curl

  Public
  libcurl api

  J

  •

  MIT License

  •00 forks•00 stars•11 issue•00 pull requests•Updated May 19, 2026May 19, 2026

• jandroid

  Public
  J for Android

  Java

  •77 forks•4040 stars•44 issues•00 pull requests•Updated May 19, 2026May 19, 2026

• ide_qt

  Public
  Qt IDE

  J

  •

  MIT License

  •22 forks•00 stars•11 issue•00 pull requests•Updated May 13, 2026May 13, 2026

• graphics_viewmax

  Public
  J

  •

  MIT License

  •00 forks•00 stars•00 issues•00 pull requests•Updated May 10, 2026May 10, 2026

• addonrepos

  Public
  list of addon repos

  Shell

  •00 forks•00 stars•00 issues•00 pull requests•Updated May 9, 2026May 9, 2026

• net_websocket

  Public
  Websocket server

  JavaScript

  •

  MIT License

  •11 fork•00 stars•11 issue•00 pull requests•Updated Apr 12, 2026Apr 12, 2026

• demos_qtdemo

  Public
  qt demo

  J

  •

  MIT License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Apr 8, 2026Apr 8, 2026

• math_lapack2

  Public
  J

  •

  MIT License

  •22 forks•22 stars•00 issues•00 pull requests•Updated Mar 31, 2026Mar 31, 2026

• math_lapack

  Public
  LAPACK

  J

  •

  MIT License

  •11 fork•22 stars•00 issues•00 pull requests•Updated Mar 31, 2026Mar 31, 2026

• labs_labs

  Public
  LABS

  J

  •

  MIT License

  •99 forks•1313 stars•11 issue•00 pull requests•Updated Mar 12, 2026Mar 12, 2026

• math_arrayfire

  Public
  Arrayfire addon

  J

  •00 forks•55 stars•00 issues•00 pull requests•Updated Mar 6, 2026Mar 6, 2026

• graphics_viewmat

  Public
  Displays a viewmat

  J

  •

  MIT License

  •00 forks•11 star•00 issues•00 pull requests•Updated Feb 26, 2026Feb 26, 2026

• api_python3

  Public
  api: python3 to J shared library

  Python

  •

  MIT License

  •44 forks•44 stars•00 issues•00 pull requests•Updated Nov 8, 2025Nov 8, 2025

• jsqlite

  Public
  libjsqlite source

  C

  •

  MIT License

  •22 forks•11 star•00 issues•00 pull requests•Updated Sep 29, 2025Sep 29, 2025

• buildfarm

  Public
  Building binaries

  C

  •11 fork•00 stars•00 issues•00 pull requests•Updated Sep 29, 2025Sep 29, 2025

• format_printf

  Public
  C-style printf formatting

  J

  •

  MIT License

  •11 fork•11 star•00 issues•00 pull requests•Updated Sep 22, 2025Sep 22, 2025

• web_gethttp

  Public
  Retrieve files from web

  J

  •

  MIT License

  •22 forks•00 stars•00 issues•00 pull requests•Updated Aug 17, 2025Aug 17, 2025