Libraries
| Name | Official website | Programming language | Software license |
|---|---|---|---|
| Boost.Regex | Boost C++ Libraries | C++ | Boost |
| Boost.Xpressive | Boost C++ Libraries | C++ | Boost |
| CL-PPCRE | Edi Weitz | Common Lisp | BSD |
| cppre | Jeff Stuart | C++ | GPL |
| DEELX | RegExLab | C++ | Free personal and commercial use |
| FREJ | Fuzzy Regular Expressions for Java | Java | LGPL |
| GLib/GRegex | Marco Barisione | C | LGPL |
| GRETA | Microsoft Research | C++ | ? |
| ICU | International Components for Unicode | C, C++ | ICU |
| Jakarta/Regexp | The Apache Jakarta Project | Java | Apache |
| JRegex | JRegex | Java | BSD |
| Oniguruma | Kosako | C | BSD |
| Pattwo | Stevesoft | Java (compatible with Java 1.0) | LGPL |
| PCRE | Philip Hazel | C, C++ | BSD |
| Qt/QRegExp | C++ | Qt GNU GPL v. 3.0, Qt GNU LGPL v. 2.1, Qt Commercial | |
| regex - Henry Spencer's regular expression libraries | ArgList | C | BSD |
| re2 | Google Code | C++ | BSD |
| TRE | Ville Laurikari | C | BSD |
| TPerlRegEx | TPerlRegEx VCL Component | Object Pascal | MPLv1.1 |
| TRegExpr | RegExp Studio | Object Pascal | Dual-license: freeware, or LGPL with static linking exception |
| RGX | RGX | C++ based component library | P6R |
| XRegExp | XRegExp | JavaScript | MIT |
Read more about this topic: Comparison Of Regular Expression Engines