IndexedDB Alternatives

SQLite Home Page

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

open-source

MongoDB (from "humongous") is a scalable, high-performance NoSQL database.

open-source

Open-source JavaScript database inspired by Apache CouchDB that's designed to run well within the browser

HTTP + JSON document database with Map Reduce views and peer-based replication

The JavaScript Database, for Node.js, nw.js, electron and the browser - louischatriot/nedb

GraphQL is a data query language and runtime to request and deliver data to mobile and web apps.

Alasql.js - is a lightweight client-side in-memory SQL database designed to work in browser and...

In-memory JavaScript Datastore with Persistence

A fast, reactive, client-side database

The JavaScript Database

ForerunnerDB is the only JavaScript database with a simple, rich JSON-based query language.

Self-hosted Firebase.