LokiJS : A fast, in-memory document-oriented datastore for node.js, browser and cordova
Grist : Grist is a modern relational spreadsheet. It combines the flexibility of a spreadsheet with the robustness of a database.
Appwrite : Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the co...
Arora : Arora is a lightweight cross-platform web browser. It's free (as in free speech and free beer). Arora runs on Linux, embedded Linux, FreeBSD, Mac OS X...
Wavacity : A free and open source audio editor for the web derived from Audacity
Lightweight WASM Postgres with real-time, reactive bindings.