Best Regular Expression Testers in 2026
Updated
In short: regex101 is ranked #1 of 23 as of 2 October 2026, ahead of RegexPilot and RegexCraft. The best-ranked option with a free plan is RegexPilot. The lowest first paid tier on this page is regex101 at €4.99/mo.
23 regular expression testers ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Regex flavors | |
|---|---|---|---|---|---|---|---|---|
| 1 | regex101 | 9.0 | RecognisedAPIDocumented | €4.99/mo | Yes | — | PCRE2 (PHP), JavaScript, Python, Golang, Java, .NET, Rust, POSIX ERE, POSIX BRE, PCRE (Legacy) | View |
| 2 | RegexPilot | 7.4 | RecognisedAPIDocumented | Free | Yes | — | JavaScript, TypeScript, Python, Java, C#, PHP, Ruby, Go, Perl, Rust, Scala, Kotlin, Groovy, Clojure, Elixir, R, Dart, Swift, MySQL, PostgreSQL, POSIX shell | View |
| 3 | RegexCraft | 7.3 | RecognisedAPIDocumented | Free | Yes | — | .NET, PCRE2, JavaScript, TypeScript, PHP, Python, Java, Ruby, Go, Rust, Perl, Kotlin, Swift | View |
| 4 |  Debuggex | 7.3 | RecognisedAPIDocumented | $5/mo | Yes | — | JavaScript, Python, PCRE | View |
| 5 | RegexStudio | 7.1 | RecognisedAPIDocumented | — | Yes | — | JavaScript, PCRE, Python, Java, Go, .NET, Rust, Ruby | View |
| 6 |  The Regex Coach | 6.7 | RecognisedAPIDocumented | Free | Yes | — | Perl-compatible | View |
| 7 | AppTools Regex Tester | 6.6 | RecognisedAPIDocumented | — | Yes | — | JavaScript, PCRE (PHP), Python, Go | View |
| 8 | RegexRegex | 6.6 | RecognisedAPIDocumented | — | Yes | — | JavaScript RegExp, Python re, PHP PCRE2, Java Pattern/Matcher, .NET Regex, Perl | View |
| 9 |  RegEx Visualizer & Explainer | 6.5 | RecognisedAPIDocumented | Free | Yes | — | JavaScript RegExp | View |
| 10 | RegExr | 6.4 | RecognisedAPIDocumented | — | Yes | — | JavaScript, PHP/PCRE | View |
| 11 | RegexBuddy | 6.3 | RecognisedAPIDocumented | — | No | — | 94 flavors, including PCRE, PCRE2, .NET, JavaScript, Java, Perl, PHP, Python, Ruby, Boost, RE2, ICU, and POSIX BRE/ERE | View |
| 12 |  Regex Tester Pro | 6.3 | RecognisedAPIDocumented | — | Yes | — | JavaScript, Python, Go, Java, PCRE, .NET | View |
| 13 |  RegexPlanet | 6.0 | RecognisedAPIDocumented | — | Yes | — | Your Browser, Bun, Deno, Erlang, Go, Haskell, Java, MySQL, .NET, Node.js, Perl, PHP, PostgreSQL, Python, Ruby, Rust, Swift, Tcl, XRegExp | View |
| 14 |  Regex Hero | 5.9 | RecognisedAPIDocumented | — | Yes | — | .NET | View |
| 15 |  Regex Shuttle | 5.8 | RecognisedAPIDocumented | — | Yes | — | JavaScript (native RegExp engine) | View |
| 16 |  SK Play Labs Regex Tester | 5.7 | RecognisedAPIDocumented | — | Yes | — | JavaScript | View |
| 17 |  RegEx Tester | 5.6 | RecognisedAPIDocumented | — | Yes | — | .NET, Node.js, Python, Java | View |
| 18 |  RegexAssistant | 5.4 | RecognisedAPIDocumented | — | — | — | Boost, Scintilla, POSIX, STD Regex, Perl, SED | View |
| 19 |  txtnode Regex Tester | 5.4 | RecognisedAPIDocumented | — | Yes | — | JavaScript | View |
| 20 |  Regulex | 5.1 | RecognisedAPIDocumented | — | — | — | JavaScript/ECMAScript | View |
| 21 |  Regex Playground | 5.0 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 22 |  Regexo | 4.9 | RecognisedAPIDocumented | — | — | — | Java | View |
| 23 |  Retest | 4.6 | RecognisedAPIDocumented | — | — | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which regular expression tester is ranked first on Inferse?
regex101 is ranked #1 of 23 with a score of 9.0. RegexPilot is second and RegexCraft third.
How many of these have a free plan?
6 of the 23 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, regex101 has the lowest first paid tier we found: €4.99/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.