OpenSea definition: A decentralized marketplace for buying, selling, and trading NFTs.

What is OpenSea?

OpenSea is a decentralized marketplace primarily for trading non-fungible tokens (NFTs) — unique digital assets verified using blockchain technology that represent ownership of a specific item or piece of content. Unlike traditional assets or cryptocurrencies such as Bitcoin or Ethereum which are fungible and can be exchanged on a one-to-one basis, NFTs have distinct values making each one unique.

Read next: OpenSea NFT Guide

When was OpenSea founded?

Founded in 2017 by Alex Atallah and Devin Finzer, OpenSea facilitates the buying, selling, and exploration of a wide range of digital assets. These include digital art, collectibles, music, domain names, and even virtual real estate in digital environments. By enabling peer-to-peer transactions, it offers an avenue for artists and creators to monetize their work in novel ways and for collectors to hold and trade unique digital art.

The platform is built on the Ethereum blockchain, a choice that harnesses the security and transparency features inherent in this decentralized ledger technology. Ethereum’s smart contract functionality allows for customizable asset behaviors beyond mere buying and selling.

OpenSea's significance goes beyond being just a marketplace. It serves as a crucial gateway for many to the world of NFTs, educating users about the value and potential of this innovative asset class. The platform has seen tremendous growth, especially during the NFT boom of the early 2020s, making it one of the primary destinations for both creators aiming to mint new NFTs and collectors looking for rare digital treasures.

Moreover, with features such as no listing fees and the ability to trade any NFT, OpenSea has lowered barriers to participation in the NFT space. For artists, especially, this democratization of the digital art world has led to new opportunities and avenues for revenue, bridging the gap between technological innovation and creative expression.

Read next: How to do OpenSea taxes

What is the Opensea valuation?

In January 2022, Opensea announced a $13.3 billion valuation, following a $300 million Series C round.

In conclusion, OpenSea operates at the crossroads of technology, art, and commerce, offering a snapshot of the potential and challenges of a decentralized digital economy. As NFTs continue to redefine concepts of ownership and value in the digital realm, platforms like OpenSea will undoubtedly play a pivotal role in shaping the narrative and trajectory of this revolution.

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Michelle Legge
By Michelle LeggeHead of Crypto Tax Education
Updated Mar 14, 2024
This article has been fact checked and reviewed as per our editorial policy.