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

# Uint.toBytes

> Convert Uint256 to byte array in big-endian format

<Card title="Try it Live" icon="play" href="https://playground.tevm.sh?example=primitives/uint.ts">
  Run Uint examples in the interactive playground
</Card>

<Tabs>
  <Tab title="Effect Schema">
    ```ts theme={null}
    import { UintSchema } from '@tevm/voltaire/Uint/effect'

    const u = UintSchema.from(1n)
    u.toBytes() // Uint8Array(32) [..., 1]
    ```
  </Tab>
</Tabs>

## See Also

* [fromBytes](/primitives/uint256/from-bytes) - Create from byte array
* [toAbiEncoded](/primitives/uint256/to-abi-encoded) - Convert to ABI encoding