Available on winget

Install Flex and Bison for Microsoft Windows

WinFlexBison is a Windows port of Flex (the fast lexical analyser) and GNU Bison (parser generator). Both win_flex and win_bison are based on upstream sources but depend on system libraries only.

Install with winget

winget install --id WinFlexBison.win_flex_bison

Upgrade

winget upgrade --id WinFlexBison.win_flex_bison

Uninstall

winget uninstall --id WinFlexBison.win_flex_bison

About Flex and Bison for Microsoft Windows

WinFlexBison is a Windows port of Flex (the fast lexical analyser) and GNU Bison (parser generator). Both win_flex and win_bison are based on upstream sources but depend on system libraries only.

What's new in 2.5.25

- upgrade win_bison to version 3.8.2 - upgrade m4 to version 1.4.19

Read release notes

Version history

Version	Updated	Notes
2.5.25	Unknown	- upgrade win_bison to version 3.8.2 - upgrade m4 to version 1.4.19
2.5.24	Unknown	- upgrade win_bison to version 3.7.4 - upgrade m4 to version 1.4.18 - upgrade gnulib - removed VS2015 support - fixed win_bison --update option (renaming opened file)