Can NFT descriptions span multiple lines in metadata JSON?

NFT
1

I want to know if I can add line breaks in NFT metadata descriptions. Every example I see online uses single line descriptions. Can I format the description field to show multiple lines on platforms like OpenSea?

Here’s a basic metadata structure I found:

{
    "name": "Digital Asset",
    "description": "Basic single line description here",
    "image": "https://example.com/image.png",
    "attributes": []
}

I want to create something with multiple paragraphs like this:

{
    "name": "My Artwork Collection",
    "description": "First paragraph explaining the concept\n\nSecond paragraph with more details\n\nThird paragraph about the artist",
    "image": "https://example.com/artwork.jpg",
    "attributes": [
        {
            "trait_type": "Style",
            "value": "Abstract"
        }
    ]
}

Will the newline characters work properly when displayed on NFT marketplaces? Has anyone tried this approach successfully?

2

in my experience, openSea does support multiline desc but rarible can be iffy. i use \n\n for that extra spacing and it generally works well on the main ones. just keep it simple with line breaks, fancy stuff might not show up right.

3

Interesting question! I’m curious about something related - have you tried different formatting beyond line breaks? What happens with unicode characters or markdown in the description field?

Also wondering about character limits - is there a practical limit before marketplaces start truncating? I’ve seen collections with really detailed backstories and always wondered if there’s a sweet spot.

One thing that makes me curious is whether formatting stays consistent when viewing metadata directly vs through the marketplace interface. Sometimes raw json shows one thing but the display does something completely different.

Have you considered testing on testnets first? Might save gas fees while you figure out what works for your target platforms. Would love to hear how your experiments turn out!

4

Yes, newline characters work in NFT metadata descriptions, but marketplace support is all over the place. I’ve tested this extensively with my collections - OpenSea handles \n properly most of the time, showing actual line breaks. Smaller marketplaces are hit or miss though. Some strip the formatting completely or just show the raw \n characters. Your JSON structure looks fine. Use \n\n for paragraph breaks since it creates better spacing. Some platforms also support basic HTML like
or

tags, but don’t count on it. Definitely test first - mint one NFT and see how your target marketplace handles it before doing your whole collection. Foundation and SuperRare are usually better with formatting than smaller platforms.