# WebSocket Weasel

> A Handy Console / Client to Communicate with WebSocket Servers

Canonical page: [https://chrome-stats.com/d/websocket-weasel](https://chrome-stats.com/d/websocket-weasel)

## Overview

- **ID:** `websocket-weasel`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Mor. H. Golkar
- **Category:** web-development,other
- **Daily users:** 1,644
- **Weekly downloads:** 21
- **Rating:** 4.94 / 5 (16 ratings)
- **Version:** 2.1.1
- **Last updated:** 2021-07-16
- **First published:** 2019-06-21
- **Size:** 20 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/websocket-weasel/)

## Description

**WebSocket Weasel** is a versatile and dependency-free Chrome extension designed as a handy console client to communicate seamlessly with WebSocket servers. It supports binary communication, multiple sub-protocols, and features syntax highlighting for JSON to aid readability. The tool is fully functional offline, supporting local development needs, and comes with a light/dark eye-friendly theme.

Key features include colorized memory slots for frequently used messages, extensive keyboard shortcuts for efficiency, sent message history navigation, and advanced binary file format detection with preview links. As an open-source project licensed under MIT, WebSocket Weasel receives continuous UI improvements and expanded mobile device support, making it an essential utility for developers working with WebSocket protocols.

## Rankings

- #2,459 — Overall
- #270 — Web Development
- #10 — rocket
- #29 — sell
- #42 — console
- #78 — base

## Safety

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

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- 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).

## Review summary

Users praise WebSocket Weasel as a simple, reliable, and handy Firefox add-on for WebSocket testing and debugging. It is appreciated for its clear design, useful features, and ease of use. No consistent issues or downsides were mentioned across the reviews.

### Pros

- Works well and is reliable according to multiple users.
- Handy and useful for debugging WebSocket connections.
- Simple and gets the job done for basic WebSocket testing from Firefox.
- Clear, concise and well designed with useful features like address parsing and binary data support.

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