Lit Prism

Inspect Lit or Polymer webcomponents 'through a prism'. View and modify component properties on the fly through Chrome DevTools.

Lit Prism: Chrome Extension for Inspecting Lit or Polymer Webcomponents

Lit Prism is a Chrome extension that allows you to inspect and modify properties of Lit or Polymer webcomponents through Chrome Developer Tools. With Lit Prism, you can view and modify component properties on the fly, making it easier to debug and customize your webcomponents.
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Extension stats

Users: 642
-13
Rating: 5.00
(6)
Version: 1.2.0 (Last updated: 2022-08-13)
Creation date: 2021-08-17
Risk impact: Low risk impact
Risk likelihood:
Manifest version: 3
Permissions:
  • storage
Size: 133.12K

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge
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Extension summary

Inspect LitElement or PolymerElement webcomponents 'through a prism'. View and modify component properties on the fly through Chrome Developer Tools.

Open the developer tools (F12) and select the Lit Prism sidepane from within the Elements panel. Select an HTML element from the Elements panel in order to view its properties. Currently supported webcomponents are LitElement and PolymerElement components.

The list of properties will refresh automatically whenever a property or a subproperty value changes, and the sidepane will keep the current scroll position.

Due to a developer tools limitation the expanded values cannot be re-expanded after updating the property list. In such cases, it might be useful to toggle the "Automatically refresh property list' switch to 'disabled'.

No data is or will be collected.

Changelog: v1.2.0 Added support for other types of webcomponents as well, especially for Lit V2 elements. Increased auto refresh interval to 1 second. Grouping webcomponent methods into _FUNCTIONS.

v1.1.1 Minor tweak, added the Lit Message also to arrays, as a first entry, in case it was an array, instead of an object, which contained a circular reference.

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User reviews

by Pedro Luiz, 2024-03-01

Perfect!! :)
by Vlad Timofte, 2023-11-10

I looooveee it ❤️ Thanks for making my life easier.
by Elisa Olalde, 2022-01-25
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Extension safety

Risk impact

Lit Prism requires very minimum permissions.

Risk likelihood

Lit Prism has earned a fairly good reputation and likely can be trusted.

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Promo images

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