Debuggex vs SK Play Labs Regex Tester
Debuggex
debuggex.comSK Play Labs Regex Tester
skplaylabs.comSide by side
| Figure | Debuggex | SK Play Labs Regex Tester |
|---|---|---|
| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 1 |
| Spec score · Regular Expression Testers | 9.1 (#2) | 7.1 (#18) |
| Live matching | Matches and non-matches update in real time while the expression and test text are edited. | It highlights matches in sample text and lists capture groups as the pattern is tested. |
| Privacy | The privacy policy says Debuggex does not sell collected user data to third parties without express permission and stores only the account email, not the password. | The maker says the tester runs entirely in the browser and does not upload or send entered text to a server. |
Plans
In their own words
Debuggex
Debuggex is an online visual regex tester for JavaScript, Python, and PCRE. It offers visual and text modes, a step-through debugger, and pattern explanations for examining expressions. Users can add unit tests to check matches and subgroups as a regex changes, and browse a repository of pre-built expressions that includes tests. The service generates code snippets, saves patterns, and creates links that reopen expressions; expressions can also be embedded in StackOverflow answers. The Free plan costs nothing and includes two saved unit tests per regex and ten public expressions. Basic costs $5 a month, while Pro costs $15 a month. Enterprise has no listed price and includes options such as private server deployment, denial-of-service prevention, flexible user counts, an OEM license, and on-site training. The free tier excludes snippets based on expressions from the library. The privacy policy says saved or shared expressions can be viewed by anyone with the link, and previous versions are stored after updates. Debuggex is available on the web.
SK Play Labs Regex Tester
SK Play Labs Regex Tester is a free web tool for testing and learning regular expressions. Entered patterns are matched against sample text, with matches highlighted and capture groups listed as the pattern runs. The tool explains metacharacters, quantifiers, groups, and character classes in plain English, token by token, and includes a cheat sheet with symbol meanings and examples. Patterns execute in the browser through JavaScript’s built-in regular-expression engine. The global flag is always enabled; ignore-case, multiline, and dotall can be toggled. Because JavaScript, PCRE, Python, and Go differ in some behavior, the maker advises checking patterns in their target language. Explanations are intended for learning and may describe highly unusual constructs generically. The maker says text stays in the browser and is not uploaded. No account is required, and the site says everything is free. SK Play Labs is based in Bengaluru, India.