Interfaces

Q as server

Adobe Flex quantbin/kdb
ADO.Net ScottWeinstein/Linq2KdbQ
sv/kp.net
amCharts kxcontrib/cburke/amcharts/
CC client for q
CZMQ jaeheum/qzmq
C#C# client for q
exxeleron/qSharp
Erlang exxeleron/qErlang
republicwireless-open/gen_q
michaelwittig/erlang-q
Excel Excel client for q
exxeleron/qXL
CharlesSkelton/excelrtd
F# kimtang/c.fs
Go sv/kdbgo
Haskell carrutstick/hasq
jkozlowski/kdb-haskell
JJ client for q
Java Java client for q
CharlesSkelton/jshow
exxeleron/qJava
michaelwittig/java-q
JavaScript WebSockets
KxSystems/kdb/c/c.js
kxcontrib/cbutler/ChartsForKdb
MdSalih/Kdb-Stuff/IPCWebParse
michaelwittig/java-q
Lua geocar/qlua
Mathematica KxSystems/kdb/c/other/qmathematica.txt
Matlab Matlab client for q
dmarienko/kdbml
NaCL geocar/qsalt
NodeJS geocar/qnode
michaelwittig/node-q
ODBCQ server for ODBC
Q server for ODBC3
Perl Perl client for q
wjackson/anyevent-k
wjackson/k-perl
PHP geocar/qphp
johnanthonyludlow/kdb/docs/phptoq.pdf
PLplot jaeheum/qplplot
Python Python client for q
brogar/pykdb
enlnt/pyk
enlnt/pyq
eschnapp/q
nugend/q
nugend/qPython
exxeleron/qPython
kingan/mongodb_kdb_python_connection
RR client for q
yang-guo/qserver
Rust adwhit/krust
jnordwick/rik
ScalaScala client for q

Q as client

Betfair picoDoc/betfair-data-capture
Bitcoin bitmx/btceQ
BloombergQ client for Bloomberg
CUDAUsing GPUs from q
Expat XML parser felixlungu/qexpat
ForexConnect mortensorensen/qfxcm
Interactive Brokers mortensorensen/QInteractiveBrokers
JQ client for J
JDBC CharlesSkelton/babel
ODBCQ client for ODBC
 johnanthonyludlow/kdb/docs/odbc.pdf
Philips Hue jparmstrong/qphue
RUsing q with R
Reuters KxSystems/kdb/c/feed/rfa.zip
TSE FLEX Naoki-Yatsu/TSE-FLEX-Converter
Twitter gartinian/kdbTwitter
Yahoo! fdeleze/tickYahoo

Foreign functions

Boost math library kimtang/bml
C/C++ Using C/C++ functions
enlnt/ffiq
felixlungu/c
Fortran johnanthonyludlow/kdb/docs/fortran.pdf
gnuplot kxcontrib/zuoqianxu/qgnuplot
Google Charts kxcontrib/zuoqianxu/qgooglechart
LAPACK, Cephes and FDLIBMalthenia.net/qml
Mathematica kxcontrib/zuoqianxu/qmathematica
Matlab kxcontrib/zuoqianxu/qmatlab
Perl kxcontrib/zuoqianxu/qperl
Python kxcontrib/zuoqianxu/qpython
Non-linear least squares brogar/nls
R kimtang/rinit
rwinston/kdb-rmathlib
Rust adwhit/krust
TA-Lib kxcontrib/zuoqianxu/qtalib
ZeroMQ wjackson/qzmq

Plugins

Atom derekwisong/atom-q
quintanar401/atom-charts
quintanar401/connect-kdb-q
Eclipseqkdt.org
Emacs geocar/kq-mode
indiscible/emacs
psaris/q-mode
Evolved simongarland/Syntaxhighlighter-for-q
Heroku gargraman/heroku-buildpack-kdb
Jupyter jvictorchen/IKdbQ
Linux, macOS, Unix enlnt/kdb-magic
Pygments jasraj/q-pygments
Sublime Text kimtang/QStudio
kimtang/sublime-q
kimtang/Q
komsit37/sublime-q
vim katusk/vim-qkdb-syntax
patmok/qvim
simongarland/vim