Babblre

A web playground that runs a given regex and string against lots of regex engines:

• .NET: backtracking, ECMAScript, NonBacktracking, RightToLeft
• automata-lib
• boost::regex: grep, Perl, Perl-longest, POSIX
• Boost.Xpressive
• Browser RegExp: default, u, v
• CPython re
• dk.brics.automaton: default, plain
• engine262: default, u, v
• FAdo
• fancy-regex
• GNU regex (glibc): awk, Emacs, ERE, grep
• Go regexp
• greenery
• ICU: default, UWORD
• interegular
• java.util.regex (TeaVM)
• lexertl17
• memoized backtracking
• MinRX: default, firstsub, minimal
• MuJS
• Nim regex
• NU-RE
• OCaml Re: Emacs, PCRE, PCRE-longest, PCRE-shortest, POSIX
• OCaml Str
• Oniguruma: Perl-NG, POSIX, Ruby
• PCRE1: DFA, Perl, UTF
• PCRE2: DFA, Perl, UTF
• PIRE
• Plan 9 libregexp
• POSIX regex (musl)
• pyformlang
• QuickJS-ng: default, u, v
• RE/flex
• RE#: .NET, Rust
• re1: backtrack VM, Pike VM, recursive, recursive-loop, Thompson NFA
• RE2: leftmost, leftmost-longest, POSIX
• re2c: leftmost, NFA, TDFA
• re2js
• RegElk
• regex (PyPI): Perl-NG, POSIX, V1
• regex-tdfa
• regexp2: default, RTL
• regress: default, u, v
• REmatch
• Remimu
• rust regex: default, ASCII, swap-greed
• rust regex-lite
• SLRE
• Spencer regex
• sregex: Pike VM, Thompson
• SRELL: default, u, v
• std::regex: awk, ECMAScript, grep, POSIX
• subreg
• Swift Regex
• T-Rex
• tiny-regex (matp)
• tiny-regex-c
• TinyRE
• TRE: backtracking, exact, fuzzy, ungreedy
• ximtech Regex
• zig-regex

Setup

• Fetch engine sources: make vendor-submodules
• Build locally: make all
• Serve locally: make serve
• Build with Docker: make dist-docker
• Run tests: make test
• Run browser tests: make test-ui
• Release: git tag vX.Y.Z && git push --tags
• Regenerate the engine list: make README.md