Running APL

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There are a few APL dialects available to download for free without feature limitations, and most of these can be tried online without installing anything.

Dialect Documentation Download Try It Online Interactive
APLX[1] APLX Archive APLX Archive
Dyalog APL Centre website #apl-dyalog TryAPLGitpod ∙ Jupyter Notebook: Binder, Gitpod
dzaima/APL docs GitHub #apl-dzaima
GNU APL info manual try-GNU-APL
NARS2000 wiki website
ngn/apl[2] GitHub #apl-ngn ScriptedSessionREPL

Other full-featured implementations are only available for a fee.

Dialect Documentation Website
APL2 Literature IBM Marketplace
APL2000 website


  1. MicroAPL has withdrawn APLX from commercial sale but it can be downloaded free of charge.
  2. Nick Nickolov has abandoned ngn/apl, but it is available to use and modify.

APL dialects [edit]
Maintained APL+Win (APL*PLUS) ∙ APL2APL64APL\ivAprilCo-dfnsDyalog APLdzaima/APLExtended Dyalog APLGNU APLKAPNARS2000
Historical Iverson notationA Programming LanguageA+ (A) ∙ APL#APL.68000APL.SVAPLXAPL\1130APL\3000APL\360APL/700NARSngn/aplopenAPLRowanSAXSHARP APLVisualAPL (APLNext) ∙ VS APLYork APL
Derivatives AHPLBQNELIIIvyJJellyK (Q, KDB+) ∙ NialRAD