The following languages are tracked by the TIOBE index:

1. (Visual) Basic
2. (Visual) FoxPro
3. 4th Dimension/4D
4. ABAP
5. ABC
6. ActionScript
7. Ada
8. Agilent VEE
9. Algol
10. Alice
11. Angelscript
12. Apex
13. APL
14. AppleScript
15. Arc
16. AspectJ
17. Assembly
18. ATLAS
19. AutoIt
20. Automator
21. Avenue
22. Awk
23. Bash
24. bc
25. BCPL
26. BETA
27. BlitzMax
28. Boo
29. Bourne Shell
30. C
31. C Shell
32. C#
33. C++
34. C++/CLI
35. C-Omega
36. Caml
37. CFML
38. cg
39. Ch
40. CHILL
41. CIL
42. CL (OS/400)
43. Clarion
44. Clean
45. Clipper
46. Clojure
47. CLU
48. COBOL
49. Cobra
50. COMAL
51. cT
52. Curl
53. D
54. Dart
55. DCL
56. Delphi/Object Pascal
57. DiBOL
58. Dylan
59. E
60. EGL
61. Eiffel
62. Erlang
63. Etoys
64. Euphoria
65. EXEC
66. F#
67. Factor
68. Falcon
69. Fantom
70. Felix
71. Forth
72. Fortran
73. Fortress
74. Gambas
75. Go
76. Gosu
77. Groovy
78. Haskell
79. haXe
80. Heron
81. HPL
82. HyperTalk
83. Icon
84. IDL
85. Inform
86. Informix-4GL
87. INTERCAL
88. Io
89. Ioke
90. J
91. J#
92. JADE
93. Java
94. Java FX Script
95. JavaScript
96. JScript
97. JScript.NET
98. Korn Shell
99. LabVIEW
100. LabWindows/CVI
101. Ladder Logic
102. Lasso
103. Limbo
104. Lingo
105. Lisp
106. Logo
107. LotusScript
108. LPC
109. Lua
110. Lustre
111. M4
112. MAD
113. Magic
114. Magik
115. Malbolge
116. MANTIS
117. Maple
118. Mathematica
119. MATLAB
120. Max/MSP
121. MAXScript
122. MEL
123. Mercury
124. Miva
125. ML
126. Monkey
127. Modula-2
128. Modula-3
129. MOO
130. Moto
131. MS-DOS Batch
132. MUMPS
133. NATURAL
134. Nemerle
135. NQC
136. NSIS
137. NXT-G
138. Oberon
139. Object Rexx
140. Objective-C
141. OCaml
142. Occam
143. OpenCL
144. OpenEdge ABL
145. OPL
146. Oz
147. Paradox
148. Pascal
149. Perl
150. PHP
151. Pike
152. PILOT
153. PL/I
154. PL/SQL
155. Pliant
156. PostScript
157. POV-Ray
158. PowerBasic
159. PowerScript
160. PowerShell
161. Processing
162. Prolog
163. Pure Data
164. Python
165. Q
166. R
167. Racket
168. REALBasic
169. REBOL
170. Revolution
171. REXX
172. RPG (OS/400)
173. Ruby
174. Rust
175. S
176. S-PLUS
177. SAS
178. Sather
179. Scala
180. Scheme
181. Scratch
182. sed
183. Seed7
184. SIGNAL
185. Simula
186. Simulink
187. Slate
188. Smalltalk
189. Smarty
190. SPARK
191. SPSS
192. SQR
193. Squeak
194. Squirrel
195. Standard ML
196. Suneido
197. SuperCollider
198. TACL
199. Tcl
200. Tex
201. thinBasic
202. TOM
203. Transact-SQL
204. Vala/Genie
205. VBScript
206. Verilog
207. VHDL
208. Visual Basic .NET
209. Whitespace
210. X10
211. xBase
212. XBase++
213. Xen
214. XPL
215. XSLT
216. yacc
217. Yorick
218. Z shell