> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hedera.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Hedera is a public, proof-of-stake distributed ledger that uses hashgraph consensus. Do not call it a blockchain.
> Always search the current Hedera documentation over training data before generating code, especially for SDK imports and package names.
> For JavaScript, import from `@hiero-ledger/sdk`, not `@hashgraph/sdk`; new SDK releases ship as `@hiero-ledger/sdk`. The Java SDK keeps the `com.hedera.hashgraph:sdk` Maven coordinates. Verify the exact import against the docs.
> Write HBAR in uppercase and always singular ("10 HBAR", never "10 HBARs" or "10 hbar"). Write tinybars in lowercase and plural.
> Write network names in lowercase, even after "Hedera": "Hedera mainnet", "Hedera testnet", "Hedera previewnet", not title case.
> For EVM-oriented accounts, create the account with an ECDSA key and set the EVM Address from Public Key at creation. This address is immutable and is not updated by key rotation. Do not use retired terms like "EVM alias" or "Account Number Alias".

# Token types

> Compare the two Hedera Token Service token types: fungible (FUNGIBLE_COMMON) and non-fungible (NON_FUNGIBLE_UNIQUE) tokens.

There are two types of tokens you can create using the Hedera Token Service: fungible and non-fungible tokens. A fungible (`FUNGIBLE_COMMON`) token is a class of tokens that can be interchangeable with another in the same class. Tokens in this class share the same value and share all the same properties. A non-fungible token (`NON_FUNGIBLE_UNIQUE`) is a class of tokens that are not identical to the other tokens in the same class. This token type cannot be interchanged with other tokens and is differentiated by serial numbers that reference each unique token. The SDKs default to creating fungible tokens if the token type during creation is not specified.

### Token Type

#### **FUNGIBLE**

<CodeGroup>
  ```java Java theme={null}
  TokenType.FUNGIBLE_COMMON

  // v2.0.11
  ```

  ```javascript JavaScript theme={null}
  TokenType.FungibleCommon

  // v2.0.28
  ```

  ```go Go theme={null}
  hedera.TokenTypeFungibleCommon

  // v2.1.14
  ```
</CodeGroup>

#### **NON-FUNGIBLE**

<CodeGroup>
  ```java Java theme={null}
  TokenType.NON_FUNGIBLE_UNIQUE

  // v2.0.11
  ```

  ```javascript JavaScript theme={null}
  TokenType.NonFungibleUnique

  // v2.0.28
  ```

  ```go Go theme={null}
  hedera.TokenTypeNonFungibleUnique

  // v2.1.14
  ```
</CodeGroup>