---
title: "lz4decompress"
description: "Decompresses bytes produced by Byte's LZ4 compressor."
---

```lua
lz4decompress(data: string): string
```

---

## Aliases

- `crypt.lz4decompress`
- `crypt.base64.lz4decompress`

---

## Arguments

<ParamField body="data" type="string" required>
  The input bytes as a binary-safe Luau string.
</ParamField>

---

## Returns

<ResponseField name="result" type="string">
  The string value returned by this operation.
</ResponseField>

Invalid input raises invalid lz4 data. No uncompressed-size argument is used.

---

## Example

```lua
assert(lz4decompress(lz4compress("hello")) == "hello")
```