List of Programming Languages Supported by Notepad++

Notepad++ supports syntax highlighting, syntax folding and auto-completion for the below List of programming Languages,

1. ActionScript
2. Ada
3. ASN.1
4. ASP
5. Assembly
6. AutoIt
7. AviSynth scripts
8. BaanC
9. batch files
10. Blitz Basic
11. C
12. C#
13. C++
14. Caml
15. CMake
16. Cobol
17. CoffeeScript
18. Csound
19. CSS
20. D
21. Diff
22. Erlang
23. escript
24. Forth
25. Fortran
26. FreeBASIC
27. Gui4Cli
28. Haskell
29. HTML
30. INI files
31. Intel HEX
32. Inno Setup scripts
33. Java
34. JavaScript
35. JSON
36. JSP
37. KiXtart
38. LaTeX
39. LISP
40. Lua
41. Makefile
42. Matlab
43. MMIX
44. Nimrod
45. nnCron
46. NSIS scripts
47. Objective-C
48. OScript
49. Pascal
50. Perl
51. PHP
52. PostScript
53. PowerShell
54. PureBasic
55. Python
56. R
57. Rebol
58. Registry script (.reg)
59. Resource file
60. Ruby
61. Rust
62. Scheme
63. Shell script
64. Smalltalk
65. SPICE
66. SQL
67. Swift
68. S-Record
69. Tcl
70. Tektronix HEX
71. TeX
72. txt2tags
73. Visual Basic
74. Visual Prolog
75. VHDL
76. Verilog
77. XML
78. YAML

You can choose the language for a tab content by going to Menu option Languages