Roam Portal is a new Chrome extension which significantly improves the search experience in Roam by using the Roam alpha API.
It allows you to search for all instances of specific words or phrases — or to narrow the search down to particular date ranges. It also gives a breakdown of the usage of the search term over time and the 25 pages where the search term appears most frequently.
You’re not limited to your own personal databases as you can use Roam Portal to search any databases you have access to — or any public Roams.
You can install the Roam Portal Chrome extension here.