AlaSQL - ( à la SQL ) [ælæ ɛskju:ɛl] - is an open source SQL database for JavaScript with a strong focus on query speed and data source flexibility for both relational data and schemaless data. It works in the web browser, Node.js, and mobile apps. This library is perfect for: Fast in-memory SQL data processing for BI and ERP applications on fat clients Easy ETL and options for persistence by data