> For the complete documentation index, see [llms.txt](https://monet-society.gitbook.io/polygon/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://monet-society.gitbook.io/polygon/ranking-tools/reviews.md).

# Reviews

### [Opensea](https://opensea.io/)

* the world’s largest and most popular NFT marketplace
* check the rarity of both Polygon and Ethereum NFTs

<figure><img src="/files/sm0PBIvijaqjbYGKbP14" alt=""><figcaption></figcaption></figure>

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* pleasing-looking interface to determine trending collections and make an informed decision
* NFT rarity rankings are based on volume, floor prices, and other factors
* advanced filtering to find rare NFTs with very specific attributes
* overall rarity rank or rarity score isn’t available
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* [**Website**](https://opensea.io/)
* [**Twitter**](https://twitter.com/opensea)
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### [Polyrare](https://polyrare.com/)

* discover popular NFT projects on the Polygon blockchain
* view rarity rankings, volume, market cap, and more

<figure><img src="/files/zymDkDv8EMYcp2UqyXFQ" alt=""><figcaption></figcaption></figure>

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* login via Discord
* filter Polygon collections' rarity by volume, market cap, floor and more
* filter individual collections by traits
* overall rarity rank or rarity score is available
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* [**Website**](https://polyrare.com/)
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