# Spector.js

> Easily explore and debug any WebGL context.

Canonical page: [https://chrome-stats.com/d/spector-js](https://chrome-stats.com/d/spector-js)

## Overview

- **ID:** `spector-js`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** BabylonJS
- **Category:** web-development,other
- **Daily users:** 1,236
- **Weekly downloads:** 28
- **Rating:** 4.44 / 5 (18 ratings)
- **Version:** 0.9.28
- **Last updated:** 2022-08-01
- **First published:** 2017-05-03
- **Size:** 366 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/spector-js/)
- **Website:** [http://spector.babylonjs.com/](http://spector.babylonjs.com/)

## Description

**Spector.js** is an advanced WebGL debugger designed to help developers easily explore and debug any WebGL context, including WebGL2. Compatible with major 3D engines, it provides comprehensive analysis of frame data and a detailed history of frame construction.

With Spector.js, users can inspect command lists and associated visual states to identify bugs or redundant rendering information efficiently, streamlining the debugging process and enhancing WebGL development workflows.

## Rankings

- #2,992 — Overall
- #326 — Web Development
- #47 — debug
- #62 — associate
- #95 — explore
- #141 — relate

## Permissions and access

### Permissions

- `http://*/*`
- `https://*/*`

### Content script matches

- `*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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

### Pros

- Great for WebGL programmers
- Helpful for debugging
- Offers useful functionality such as recording and listing textures

### Cons

- Embeds javascript code into Wordpress posts
- Potentially can break client websites
- Doesn't record all textures used, only the last one bound

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