# Regex Sheet

> Paste any regex to see what each token does in plain English. Lookaheads, lookbehinds, named groups, quantifiers, flags, and literals all explained. Optional test string.

Canonical page: [https://chrome-stats.com/d/regex-sheet](https://chrome-stats.com/d/regex-sheet)

## Overview

- **ID:** `regex-sheet`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Eric
- **Category:** web-development
- **Version:** 1.0.0
- **Last updated:** 2026-06-14
- **First published:** 2026-06-11
- **Size:** 39 KB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/regex-sheet/)

## Description

Regex Cheatsheet decodes a regular expression character by character.

Features:
- Token-by-token explanation: classes, groups, anchors, quantifiers, flags
- Lookahead, lookbehind, named groups, lazy quantifiers
- Flag descriptions (g, i, m, s, u, y, d)
- Accepts /pattern/flags syntax or bare pattern
- Optional test string: shows matches with capture groups
- 100% offline

For developers reading regex they didn't write, and people learning regex.

## Rankings

- #136,918 — Overall
- #165 — sheets

## Permissions and access

### Permissions

- `storage`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/regex-sheet)