Date Add / Subtract Calculator
About Alt Text Helper
The Accessible Image Alt Text Writer & Decision Tree Guide generates context-aware, descriptive alternative text (`alt=""`) for informative images, decorative graphics, complex infographics, icons, and eCommerce product photography.
How to Use Alt Text Helper
Step 1
Answer 3 quick questions about the image purpose and surrounding context.
Step 2
Enter the core meaning or informative message conveyed by the image.
Step 3
Review computed `alt` text attribute recommendation and generated HTML code.
Step 4
Click "Copy HTML Tag".
Practical Use Cases for Alt Text Helper
Web Accessibility & WCAG 2.1 SC 1.1.1 Non-Text Content Compliance
Determine whether an image is informative, functional, decorative, or complex, generating appropriate HTML `alt` attributes or empty `alt=""`.
Input & Output Examples
Evaluating Search Button Icon Image inside a Button with Text
Image: `Magnifying Glass Icon`, Context: `Inside <button>Search Products</button>`
Classification: `Decorative Image` | HTML: `<img src="search.svg" alt="" aria-hidden="true" />` | Rationale: `Avoids redundant "Search, Search Products" screen reader repetition.`
Key Features & Performance
- ✓W3C Alt Text Decision Tree Engine: interactive questionnaire determines if image is Informative, Functional, Decorative, or Complex Chart.
- ✓Anti-Pattern Detection: flags bad alt text containing redundant phrases like "image of", "photo of", or graphic file names (`photo.jpg`).
- ✓Complex Image Extended Description Builder: structures captions and `<figcaption>` long descriptions for scientific charts and infographics.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy accessible `<img>` or React `<Image />` markup.
Key Terminology & Definitions
Decorative Image (`alt=""`)
An image that serves only visual aesthetic styling and carries no meaningful information, which must use an empty `alt=""` so screen readers skip it.
WCAG SC 1.1.1 (Non-Text Content)
A Level A requirement mandating that all non-text content presented to users has a text alternative serving an equivalent purpose.