Alasql

Alasql

Alasql is an open-source SQL database for JavaScript that allows developers to run SQL queries directly on client-side JavaScript arrays and objects without needing a database server. It supports most common SQL syntax and can be used for simple in-browser databases.
Alasql image
sql javascript clientside open-source

Alasql: Open-Source SQL Database for Client-Side JavaScript

Run SQL queries directly on client-side JavaScript arrays and objects without a database server, with support for common SQL syntax.

What is Alasql?

Alasql is an open-source JavaScript SQL database that allows you to run SQL queries directly on JavaScript arrays and objects in the browser or Node.js without needing a database server. It uses SQL syntax and supports selecting, inserting, updating, and deleting data.

Some key features of Alasql:

  • Works client-side in the browser or on Node.js server
  • Supports most common SQL syntax like SELECT, JOIN etc
  • Can query directly on JavaScript objects and JSON data
  • Very small footprint around 100kb
  • Fast processing of large datasets
  • Plugin architecture to add custom SQL functions
  • Works well with popular frameworks like AngularJS

Alasql allows web developers to work with data using familiar SQL syntax without needing the hassle of setting up a separate database. It essentially brings the power and flexibility of SQL to working with local JavaScript data client-side in the browser. It can be useful for simpler database needs or prototyping applications.

Alasql Features

Features

  1. SQL syntax support
  2. Client-side data processing
  3. IndexedDB and localStorage support
  4. CSV/JSON import and export
  5. Aggregation functions
  6. Subqueries and JOINs

Pricing

  • Open Source

Pros

Lightweight and fast

No database server required

Works directly on browser and Node.js

Open source and free to use

Cons

Not suitable for large datasets

Limited to JavaScript arrays and objects

Not optimized for production use


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