Key Statistics
ViT-GPT2 Vision-Language Model AI model
Alt text, social media, SEO Use cases
100% local processing Privacy
Generate Image Descriptions with AI
Upload any image and AI will generate a natural language description. Perfect for creating accessibility alt text, social media captions, and SEO-optimized image descriptions. Uses the ViT-GPT2 vision-language model running entirely in your browser. Your images never leave your device - 100% private, no uploads.🖼️
Drop an image or click to upload
AI will generate a description of your image
Image captioning runs locally using ViT-GPT2 model.
Your images are processed in your browser and never uploaded to any server.
What is AI Image Captioning?
AI Image Captioning uses a vision-language model (ViT-GPT2) to analyze images and generate human-readable descriptions. The AI understands objects, scenes, actions, colors, and spatial relationships to create accurate captions.
Image descriptions are essential for web accessibility (screen readers), social media engagement, and SEO optimization. AI captioning automates what would otherwise be time-consuming manual work.
How does AI Image Captioning work?
- 01 Upload an image by dragging and dropping or clicking to select
- 02 Click "Load Model & Generate Caption" (first load downloads ~350MB model)
- 03 Wait a few seconds while the AI analyzes your image
- 04 View the generated caption describing your image
- 05 Click "Copy" to save the caption to your clipboard
- 06 Use as alt text, social media caption, or content description
Why use a browser-based tool?
- Privacy: Your images are processed locally and never uploaded to any server
- Free: No API costs, rate limits, or subscription required
- Offline capable: Works without internet after initial model download
- Fast: No network latency - captions generate in seconds
- Unlimited: Generate as many captions as you need
Common Questions
What is AI image captioning?
AI image captioning uses vision-language models to analyze images and generate natural language descriptions. It understands objects, scenes, actions, and context.
How can I use the generated captions?
Use them as alt text for website accessibility, social media post descriptions, SEO image optimization, or content creation inspiration.
Is this good for accessibility?
Yes! Generated captions make excellent starting points for alt text. Screen readers use alt text to describe images to visually impaired users.
Are my images uploaded anywhere?
No. The AI model runs entirely in your browser using WebAssembly. Your images never leave your device.