/.*/?
Regex Explainer
Explain a regular expression piece by piece in plain words.
| Part | Meaning |
|---|---|
| ^ | start of the text (or line with m flag) |
| (?<user> | capturing group “user” |
| [\w.+-] | one character from: \w (a word character (letter, digit, _)), ., +, - |
| + | repeated 1 or more times |
| ) | end of group |
| @ | the character “@” |
| ( | capturing group #2 |
| [a-z\d-] | one character from: a–z, \d (a digit 0–9), - |
| + | repeated 1 or more times |
| \. | the character “.” |
| ) | end of group |
| + | repeated 1 or more times |
| [a-z] | one character from: a–z |
| {2,} | repeated at least 2 times |
| $ | end of the text (or line with m flag) |
| /i | Flags: i = ignore case |
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Paste or type your text.
- 2Choose the options you need.
- 3Copy or download the result.
About this tool
Regex Explainer: Explain a regular expression piece by piece in plain words. Paste your text and the result appears immediately, ready to copy or download. Everything happens locally in your browser — nothing you paste is uploaded or stored.
How do I use the Regex Explainer?
Paste or type your text. Choose the options you need. Copy or download the result.
Is the Regex Explainer free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.