| A library of language lexers for use with Scintilla | Release version 5.5.1 Site last modified July 6 2026 |

- Version 5.5.1 improves Baan, HTML, and XML.
- Version 5.5.0 improves Fortran and LaTeX.
- Version 5.4.9 improves Assembler, C++, F#, LaTeX, Pascal, and Ruby.
- Version 5.4.8 improves Batch, Forth, JavaScript, and JSON.
- Version 5.4.7 adds EscapeSequence lexer escseq. Improves Errorlist, Makefile, Perl, and Progress.

Lexilla is a free library of language lexers that can be used with the Scintilla editing component. It comes with complete source code and a license that permits use in any free project or commercial product.

Originally, this functionality was incorporated inside Scintilla. It has been extracted as a separate project to make it easier for contributors to work on support for new languages and to fix bugs in existing lexers. It also defines a protocol where projects can implement their own lexers and distribute them as they wish.

Current development requires a recent C++ compiler that supports C++17. The testing framework uses some C++20 features but the basic library only uses C++17.

Lexilla is currently available for Intel Win32, macOS, and Linux compatible operating systems. It has been run on Windows 10, macOS 10.13+, and on Ubuntu 20.04 but is likely to run on earlier systems as it has no GUI functionality.

You can download Lexilla.

The source code can be downloaded via Git at GitHub Lexilla project page.
`git clone https://github.com/ScintillaOrg/lexilla`

Current repository status:

Related sites.

Bugs and other issues.

History and contribution credits.

Questions and comments about Lexilla should be directed to the scintilla-interest mailing list, which is for discussion of Scintilla and related projects, their bugs and future features. This is a low traffic list, averaging less than 20 messages per week. To avoid spam, only list members can write to the list. New versions of Lexilla are announced on scintilla-interest.