AltSpark

About

AltSpark scans any page and fills accessibility gaps (missing alt text, vague "click here" links, and generic headings) using Chrome’s on-device AI. It’s private, fast, and reversible.

Why AltSpark?
Many pages still ship with images without alt text and unclear labels.
AltSpark gives you clear, human-sounding descriptions in one click, and no data leaves your browser.

What it fixes:
🖼 Images: generates descriptive, context-aware alt text.
🔗 Links: rewrites vague text (e.g., "Read more") into meaningful labels.
🧭 Headings: suggests clearer, scannable headings that improve page structure.

How it works:
- Scan: run an audit from the popup or Side Panel.                                                      
- Quick Fix: apply safe fixes in one click.                                                             
- Auto‑mode: automatically applies safe fixes as you browse (per‑site control).                         
- Right‑click "Describe this image": get a copy‑ready alt description on demand.                        
- Undo/Export: revert instantly or export findings for developers.   

Key features:
⚡ On-device AI (no cloud calls; works offline once available).
🌍 Language-aware: detects page language; can localize suggestions.
🧪 Preview & Undo before/after, plus optional Export of findings.
🧩 Works anywhere you browse — no site access or logins needed.


Technical information:
- Uses the new Chrome Built-in AI APIs.
- Uses Gemini Nano multimodal functionalities.