The short version
Alt Text for Data Visualizations
By Posit
Generate accessible descriptions for charts and images in your documents.
What each one does
Google Slides
- Creates new blank Google Slides presentations with custom titles
- Reads content from existing slide decks to summarize or reference
- Updates slides in batch—add text, images, shapes, or reformat layouts
- Returns the finished presentation ready to share or present
Alt Text for Data Visualizations
- Generates alt text for charts in R packages and Quarto documents following accessibility guidelines
- Uses your actual chart code to identify exact variables, data patterns, and visual elements
- Structures descriptions with chart type, data details, and key insights in plain language
- Ensures alt text complements rather than duplicates your existing captions
- Adapts description length and detail based on chart complexity
When to pick each one
Reach for Google Slides when…
- You need a pitch deck or campaign presentation fast
- You're building a roadmap or strategy deck for your team
- You want to update slides without opening Google Slides
- You need to extract content from an existing deck for a summary
Reach for Alt Text for Data Visualizations when…
- You're publishing data visualizations and need to make them accessible to all readers
- You have charts in documentation or articles that need screen-reader-friendly descriptions
- You want to improve existing alt text to follow current best practices
- You're auditing a Quarto document or R package site for accessibility compliance
Quick facts
| Google Slides | Alt Text for Data Visualizations | |
|---|---|---|
| Made by | Google Workspace | Posit |
| Category | Documents | Documents |
| Source | View ↗ | View ↗ |
| Detail page | Open | Open |