APL in Javascript

APL.js
Provides APL in a browser
APL.js.User
Examples of a user's workspaces and files
Models
Code to understand primitive behavior, inform developers,
or actually provide an implementation

APL in VB.Net

PLJsAPL
An experiment to provide a compilable version of APL

APL in DOS

FreeAPL
A copy of APLse
PLJTools
Provides DOS.FON and sample workspaces
STAPLE
Text version of some files in PLJTools,
for those unable to load the old workspaces

Tools for Jay

Jay
DelModify a session log, and then copy the result
DrView directories and files and then navigate to them
KeysProvides dictionary order rather than the ASCII default
DisplayAn html rendering of J values
DiffA quick alternative to using external apps
debugDeal with an error or stop without foreign verbs
CrDisplay definition with line numbers for debugging
VrDisplay definition with braces {{ }}
SavePreserve the current state of development
ToolsLists the Jay tools, including common string functions
Split Join Replace
StartsWith EndsWith TrimStart TrimEnd Trim