Chrome extension

Installation

Install from Chrome Web Store

Open the AltTextLab page on Chrome Web Store and click Add to Chrome.

Open extension options

Click the AltTextLab icon in your browser toolbar and go to Options.

Enter your API key

Paste your API key (from dashboard settings) and click Save.

Usage

Right-click any image on a public web page and select AltTextLab: Get alt text. The result appears in a popup within seconds with a one-click copy button.

Configuration

Setting	Description
Language	Output language for generated alt text
AI writing style	`descriptive`, `neutral`, `matter-of-fact`, or `minimal` — see Writing styles
Webpage keywords	Extract page keywords to improve relevance
Auto-copy	Automatically copy result to clipboard (requires the active tab to stay focused)

Requirements & limitations

Images must be publicly accessible. Password-protected or login-gated images cannot be processed. For error messages, see Troubleshooting.

Get started

Integrations

Web snippet

Developer API

Features

Guides

Installation

Usage

Configuration

Requirements & limitations

​Installation

​Usage

​Configuration

​Requirements & limitations

Installation

Usage

Configuration

Requirements & limitations