Datasette : Datasette provides an instant, read-only JSON API for any SQLite database. It also provides tools for packaging the database up as a Docker container ...
DevDocs : DevDocs combines multiple API documentations in a fast, organized, and searchable interface.
Pipes : Pipes is a powerful composition tool to aggregate, manipulate, and mashup content from around the web.
Web Audio Studio : Visualize and debug Web Audio graphs
Write Web Audio API code and instantly see the graph it creates.
Inspect signal flow, tweak parameters, and hear ...
Bliss.js : Want to use Vanilla JS but find native APIs a bit unwieldy? Bliss is for you
Bluepine is a DSL for defining API Schema/Endpoint with the capabilities to generate Open API (v3) spec, validate API request and serialize object for API response based on single schema definition.