Treble extracts triples from the Web while you browse.
RDFa in HTML is more common than people think. JSON-LD is quickly becoming the meaningful data format of choice for Linked Data.
This extension provides a context menu option for downloading the RDFa-encoded data hiding in HTML pages you browse everyday. Downloading the data as JSON-LD gives you the option to add it to any JSON-based storage system (Apache CouchDB, PouchDB, etc) or add them to a "smarter" triple store such as Apache Marmotta.
Additionally, the top-right corner browser action button allows you to view the JSON-LD as well as other text formats (Turtle, etc.) of this graph-based data hiding in the web pages you visit.
Right now (as this isn't published in any of the various browser add-on sites),
you can use the add-on debugging tools in your browser to select the
extension/manifest.json file to load the extension in development mode. This
sets the extension up for both use and contribution. Handy. 😺
The extension in this repo (which lives in the extension/ directory) is ready
to run. However, if you want to contribute, you'll want to edit the src/ fies
(which are ES6 files and have imports and cool magic bits).
To get started, run these commands in a console:
$ npm i
$ npm run build
From then on, you can edit the src/ files, and then npm run build and
reload the extension in the browser you prefer.
Have fun!