> ## Documentation index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Ask it with GET https://upstash.com/docs/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.
> Feature requests: https://upstash.com/docs/common/help/feature-requests.md lists what users asked for and how to vote for a request or add one.
> Page rating: `GET https://upstash.com/docs/feedback?path=/docs/redis/sdks/ts/commands/server/flushall&helpful=true` (or `false`) records whether this page helped. An optional `comment` (URL-encoded, at most 500 characters) says what was missing or wrong. It is anonymous and needs no key. Comments hold no code, secrets or personal data.

# FLUSHALL

<Warning>
Deletes all keys permanently. Use with caution!
</Warning>
## Arguments

<ParamField body="async" type="boolean">
  Whether to perform the operation asynchronously.
  Defaults to synchronous.
</ParamField>

<RequestExample>
```ts Sync
await redis.flushall();
```
```ts Async
await redis.flushall({async: true})
```
</RequestExample>