# Devtools

TanStack Hotkeys ships devtools for debugging and monitoring your registered hotkeys in real time, as a panel inside the [TanStack Devtools](https://tanstack.com/devtools) multi-panel UI.

> [!NOTE]
> The Hotkeys devtools exports are no-ops outside development mode. See [Production builds](#production-builds) if you need them in production.

## Features

The Hotkeys devtools panel lets you:

- View all currently registered hotkeys, chords and sequences in one list, with their options and status
- Follow sequence progress as steps are pressed
- See declared [app hotkeys](./overview#app-hotkeys) that nothing has registered yet, with their custom hotkeys
- See which keys are held down in real time
- Trigger hotkey callbacks for testing, without pressing the keys
- Inspect individual registrations, including their target, event type, and conflict behavior

## Installation

Install the TanStack Devtools host package and the Hotkeys devtools adapter for your framework.

Requires Angular 21 or newer.

```sh
npm install @tanstack/angular-devtools @tanstack/angular-hotkeys-devtools
```

## Setup

Add the plugin through the official `provideTanStackDevtools` provider in `app.config.ts`. The provider creates the dock; you do not need to add a component to your template.

```ts
import { isDevMode } from '@angular/core'
import { provideTanStackDevtools } from '@tanstack/angular-devtools/provider'
import { hotkeysDevtoolsPlugin } from '@tanstack/angular-hotkeys-devtools'
import type { ApplicationConfig } from '@angular/core'

export const appConfig: ApplicationConfig = {
  providers: [
    ...(isDevMode()
      ? [
          provideTanStackDevtools(() => ({
            plugins: [hotkeysDevtoolsPlugin()],
          })),
        ]
      : []),
  ],
}
```

Keep your existing application providers alongside this provider. The Hotkeys panel appears alongside any other TanStack devtools plugins you have installed.

## Standalone panel

`HotkeysDevtoolsPanel` is a render factory for the official dock. To mount it in your own host element, call the factory and keep its returned cleanup function:

```ts
import { HotkeysDevtoolsPanel } from '@tanstack/angular-hotkeys-devtools'

export function mountHotkeysPanel(host: HTMLElement) {
  const render = HotkeysDevtoolsPanel()
  return render?.(() => ({ theme: 'light' }), host)
}
```

Call the returned cleanup function when the host is destroyed. The factory returns `null` outside development mode. `theme` defaults to `'dark'` and `devtoolsOpen` defaults to `true`. Values supplied by the dock take precedence over these defaults.

## Production builds

In production builds, the framework devtools adapters return no-op implementations, so they don't affect your bundle's behavior.

To include the devtools in a production build, import from the production entry point and remove the `isDevMode()` guard from the setup example:

```ts
import { hotkeysDevtoolsPlugin } from '@tanstack/angular-hotkeys-devtools/production'
```

This entry point also exports the active `HotkeysDevtoolsPanel` for standalone use.