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NFT.Storage vs Nu Html Checker
People
Price
Usage-based
Free
NFT Platforms
Annual estimate10 people, entry price
Usage-based
Free
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NFT Platforms
Overview
Focus
NFT Platforms
Developer Experience Platforms
Product
Free decentralized storage service for NFTs offered by Protocol Labs using Filecoin and IPFS.
W3C's HTML/CSS validation service for checking markup and styles against standards.
Headquarters
San Francisco, California
Worldwide
Company size
101-250 employees
1,001-5,000 employees
Founded
2021
2015
Pricing details
Published rate
Usage-based
Free
Free options
Free plan
Free plan
Source updated
Oct 29, 2026
Oct 29, 2026