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---
title: crypto.FNV32a
description: Returns the FNV (Fowler–Noll–Vo) 32 bit hash of a given string.
categories: []
keywords: []
action:
aliases: []
related:
- functions/crypto/HMAC
- functions/crypto/MD5
- functions/crypto/SHA1
- functions/crypto/SHA256
returnType: int
signatures: [crypto.FNV32a STRING]
aliases: [/functions/crypto.fnv32a]
---
This function calculates the 32 bit [FNV1a hash](https://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function#FNV-1a_hash) of a given string according to the [specification](https://datatracker.ietf.org/doc/html/draft-eastlake-fnv-12):
```go-html-template
{{ crypto.FNV32a "Hello world" }} → 1498229191
```
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