Best practices for writing alt text
Even when using AI to generate alt text, it's helpful to understand what makes good alt text — especially if you're reviewing or editing it later. Well-written alt text improves accessibility, enhances SEO, and creates a better experience for all users.
Here are some simple guidelines to help you write or refine alt text effectively:
Be descriptive, but concise
Alt text should clearly describe what’s in the image — but no need to go overboard.
✅ Good: A woman holding a reusable coffee cup in a park
🚫 Too much: A young brunette woman in a beige coat holding a reusable cup made of bamboo while walking in a sunny park in autumn
Avoid "image of" or "photo of"
Screen readers already know it’s an image — no need to say it.
✅ Good: Golden retriever puppy playing with a tennis ball
🚫 Bad: Image of a golden retriever puppy
Include relevant context
If the image supports a marketing message or a product, reflect that.
✅ Example for e-commerce: Red leather crossbody bag on a wooden table, front view
✅ Example for content blog: Woman laughing during a morning run, symbolizing motivation
Use keywords (when relevant)
You can include keywords naturally for SEO, but don’t stuff them.
✅ Subtle SEO-friendly: Organic cotton white T-shirt folded neatly on a shelf
🚫 Keyword-stuffed: White T-shirt organic cotton sustainable eco-friendly clothes
Use plain language
Keep it simple, clear, and direct.
✅ Good: Freshly baked sourdough bread on a cutting board
🚫 Bad: A scrumptious loaf imbued with rustic charm resting upon a wooden slab