AI Alt Text Generator
Create descriptive, accessible alt text for your images using AI. Upload a photo, and the AI will suggest accurate alt text to improve SEO and accessibility. Free, private, no upload.
Suggested Alt Text
What is an AI Alt Text Generator?
An AI Alt Text Generator automatically creates descriptive text for images, which is essential for web accessibility and SEO. This free tool uses a vision‑to‑language model that runs directly in your browser – your image is never uploaded. It produces concise, accurate alt text that helps screen readers describe images to visually impaired users and gives search engines better context about your visual content.
How to Generate Alt Text for Images
- Upload or drag & drop your image into the box above.
- Click "Generate Alt Text" – the AI will analyze the picture.
- Review the suggested alt text (up to 3 variations).
- Copy the one that best describes your image, or click "Regenerate" for fresh options.
- Paste the alt text into your HTML
altattribute.
Why Use This Free Alt Text Generator?
- 100% free: No sign‑up, no credits, no watermarks.
- Private & offline: The AI model runs locally – your image never leaves your device.
- Multiple suggestions: Get up to 3 alternative descriptions to choose the most accurate one.
- Accessibility focused: Helps you meet WCAG guidelines by providing meaningful alt text.
- SEO boost: Proper alt text improves image search rankings.
- Mobile friendly: Works perfectly on phones and tablets.
Frequently Asked Questions
It uses a vision‑to‑language AI model (ViT‑GPT2) that runs locally in your browser. The model looks at your image and generates a descriptive alt text caption. The first time you use it, the model downloads (~200 MB), then it works completely offline.
Yes, completely free. No sign‑up, no credits, no watermarks. Unlimited generation.
No. All processing happens directly in your browser. Your image never leaves your device.
The first time you use it, the AI model is downloaded (about 200 MB). After that, it works fully offline.
You can upload JPG, JPEG, PNG, WebP, or any common image format. The tool resizes the image for analysis, so large files are handled efficiently.
Yes, the tool is fully responsive and works on smartphones and tablets.
The AI generates up to 3 distinct suggestions so you can choose the most accurate one. You can also regenerate for fresh ideas.
This Nyxbo AI Alt Text Generator is one of the best – it's free, private, and creates high‑quality alt text to boost accessibility and SEO.
Yes, you own the generated text and can use it freely.
Alt text helps search engines understand image content, improving your page's ranking in image search. It also makes your site more accessible to visually impaired users.