Alt Text Creator

Make Your Posts Accessible with AI-Powered Alt Text

Alt Text Creator generates descriptive alt text for images with a single click. Make your social media posts accessible to screen reader users, people on low-bandwidth connections, and improve discoverability.

KEY FEATURES

One-Click Generation
Adds a "Create Alt Text" button directly into alt text dialogs on supported platforms. No copy-paste needed—just click, review, and save.

Perfect OCR
Extracts text from screenshots, memes, quotes, and infographics with excellent accuracy. Every word is included in the description, making text-heavy images fully accessible.

Multiple AI Providers
Choose the AI that works best for you:
- Google Gemini (gemini-2.0-flash)
- OpenAI GPT-4o
- Anthropic Claude Sonnet
- Alt Kit Hosted - zero setup required

Auto-Copy to Clipboard
Alt text is automatically copied to your clipboard as a backup, useful for platforms where auto-fill may not work perfectly.

Privacy First
- Your API key is stored locally in Chrome (never synced to the cloud)
- Images are sent directly to your chosen AI provider
- Nothing is stored, logged, or shared with third parties
- No tracking, no analytics, no data collection

Screen Reader Optimized
Descriptions are crafted to sound natural when read aloud—concise, informative, and accessibility-focused.

HOW IT WORKS

1. Install the extension
2. Click the extension icon and go to Settings
3. Select your AI provider and enter your API key (or use Alt Kit Hosted)
4. Visit a supported platform and upload an image
5. Open the alt text dialog
6. Click "Create Alt Text"
7. Review the generated text and save

PRICING

Extension is Free
The extension itself is completely free to use. All features included, no limitations.

Bring Your Own Key
Use your own API key from Google, OpenAI, or Anthropic. You pay your AI provider directly based on their pricing.

Alt Kit Hosted Plan
Subscription available with a ready-to-use key with zero setup. We handle all AI provider costs, so you pay one flat fee regardless of how many images you process.

PRIVACY & SECURITY

- API keys are stored locally using Chrome's storage API
- Keys are never transmitted except to authenticate with your chosen AI provider
- Images are processed only for alt text generation
- The extension does not store or log any data
- No user tracking or analytics

WHY ALT TEXT MATTERS

Over 2 billion people worldwide have some form of vision impairment. Screen readers rely on alt text to describe images to users who cannot see them. Without alt text, images are invisible to these users.

Good alt text also helps:
- People on slow connections who disable images
- Search engines index and understand your content
- Anyone trying to understand an image that failed to load

REQUIREMENTS

- Chrome browser (version 88 or later)
- One of the following:
- Google Gemini API key
- OpenAI API key
- Anthropic API key
- Alt Kit Hosted subscription