supabase/apps/reference/_supabase_js/generated/removeallchannels.mdx

---
id: removeallchannels
title: 'removeAllChannels()'
slug: /removeallchannels
custom_edit_url: https://github.com/supabase/supabase/edit/master/spec/supabase_js_v2_legacy.yml
---

import Tabs from '@theme/Tabs'
import TabItem from '@theme/TabItem'

Unsubscribes and removes all Realtime channels from Realtime client.

```js
supabase.removeAllChannels()
```

## Notes

- Removing channels is a great way to maintain the performance of your project's Realtime service as well as your database if you're listening to Postgres changes. Supabase will automatically handle cleanup 30 seconds after a client is disconnected, but unused channels may cause degradation as more clients are simultaneously subscribed.

## Examples

### Remove all channels

```js
supabase.removeAllChannels()
```