docs/_includes/api/debug_mode.html

{% include anchor.html edit="true" title="Debug mode" hash="debug_mode" %} 

PouchDB uses the [debug](https://www.npmjs.org/package/debug) module for fine-grained debug output.

To enable debug mode, just call:

{% highlight js %}
PouchDB.debug.enable('*');
{% endhighlight %}

In your browser console, you should then see something like this:

{% include img.html src="debug_mode.png" alt="Coloured Log Output" %}

In Node.js, you can also set a command-line flag:

{% highlight bash %}
DEBUG=pouchdb:* node myscript.js
{% endhighlight %}

You can also enable debugging of specific modules. Currently we only have `pouchb:api` (API-level calls) and `pouchdb:http`  (HTTP requests):

{% highlight js %}
PouchDB.debug.enable('pouchdb:api'); // or
PouchDB.debug.enable('pouchdb:http');
{% endhighlight %}

These settings are saved to the browser's LocalStorage. So to disable them, you must call:

{% highlight js %}
PouchDB.debug.disable();
{% endhighlight %}

Your users won't see debug output unless you explicitly call `PouchDB.debug.enable()` within your application code.