Finally, a JavaScript native chain with no fees.

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P2P / FOSS

Dereva is free & open source software that allows developers to easily host and/or participate in peer-to-peer blockchains based on Decentralized Record of Value ("DRV"). Anyone who runs Dereva on the Internet can become a node in the main network, or in their own, who helps validate transactions and store distributed data.
Fungible

For fungible token systems: The first transaction of a new chain issues 1 Dereva to a root address. To establish currency, any user can acquire a fraction of the Dereva with USD. Unlike Bitcoin, Dereva's valuation model is simple (it's just the avg. price users pay for it). With your newly created currency, denominate & distribute in whatever form(s) you like; and even give your currency a name & logo.
Non-Fungible

Dereva adds blockchain support for records that are not "spendable", or otherwise fungible. Developers who need a novel content type for such records — or need some other behavior beyond basic ownership transfers — are encouraged to extend the protocol by open sourcing custom "contracts". Unlike Ethereum, there are no fees built into Dereva (nor in DRV, the underlying blockchain library — it's completely free & open).

Dereva