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Privacy Policy

Last Updated: November 1, 2025

Overview

AltText.AI is a client-side application that prioritizes your privacy. All processing happens in your browser—we do not store, transmit, or have access to your personal data or images.

Data Collection

What we collect: Nothing. We do not collect, store, or transmit any personally identifiable information (PII) or user-generated content to our servers.

What stays in your browser:

  • Uploaded images (processed client-side only, never sent to our servers except for AI generation)
  • Generated alt text
  • Generation history (stored in your browser's IndexedDB)
  • User preferences and settings (stored in your browser's localStorage)

AI Processing

When you use the AI alt text generation feature:

AI Provider: We use Vercel AI Gateway which routes requests to AI services (currently using openai/gpt-5-nano model) to analyze images and generate alt text.

What is sent to AI providers:

  • Your uploaded image (encoded)
  • Optional context you provide (keywords, page context)
  • Selected style preference

Data retention: AI providers process the data according to their terms of service. We recommend reviewing:

No server-side storage: We do not store copies of your images or generated text on our servers.

Browser Storage (Client-Side Only)

IndexedDB: Used to store your generation history locally in your browser. This includes:

  • Image thumbnails (compressed)
  • Generated alt text
  • Timestamps
  • Style preferences
  • SEO scores

localStorage: Used to store user preferences and settings.

Control: You can delete this data at any time:

  • From the History page (delete individual items or clear all)
  • By clearing your browser's data/cache
  • Through your browser's developer tools

Third-Party Services

AI Providers: When you generate alt text, your image is sent through Vercel AI Gateway to the AI provider for analysis.

Analytics: We use Ahrefs Web Analytics to understand how our site is used. Ahrefs is a privacy-focused analytics service that does not use cookies or track personal data across sites. Learn more at Ahrefs Web Analytics.

No Tracking Cookies: We do not use cookies for tracking. Any cookies used are strictly functional.

Data Security

  • Client-Side Processing: Most operations happen entirely in your browser.
  • HTTPS: All connections are encrypted via HTTPS.
  • No Account Required: We do not require registration or authentication.

Your Rights

  • Access: All your data is already accessible to you (it's in your browser).
  • Deletion: You can delete your data at any time through the History page or by clearing browser data.
  • Export: You can export your history data (future feature).
  • No Sale of Data: We do not sell, rent, or share your data with third parties.

Summary

TL;DR:

  • ✅ All data stays in your browser (IndexedDB/localStorage)
  • ✅ Images are only sent through Vercel AI Gateway to AI providers when you click "Generate"
  • ✅ We use Ahrefs Web Analytics (privacy-focused, no cross-site tracking)
  • ❌ We do not store your images or data on our servers
  • ❌ We do not use tracking cookies or advertising services
  • ❌ We do not require accounts or authentication
  • 🔒 You control your data—delete it anytime from the History page