1. PouchDB：
PouchDB是一个开源的NoSQL嵌入式数据库。它是在CouchDB之后设计的，CouchDB是为npm提供支持的NoSQL数据库。它是用JavaScript语言编写的。由于PouchDB驻留在浏览器内部，因此无需通过网络执行查询，因此它使其速度非常快。它在浏览器中使用IndexedDB和WebSQL在本地存储数据。
2. SQLite：
SQLite是一个提供关系数据库管理系统(RDBMS)的软件库。它是由D. Richard Hipp在2000年8月设计的。SQLite的设计目标是允许在不安装数据库管理系统(DBMS)或不需要数据库管理员的情况下运行该程序。 SQLite中的lite意味着在设置，数据库管理和所需资源方面的轻量级。
PouchDB和SQLite之间的区别“
| SR.NO | PouchDB | SQLite |
|---|---|---|
| 1 | It is developed by Apache Software Foundation. | It is developed By D. Richard Hipp . |
| 2 | It was released in 2012. | It was released on August 2000. |
| 3 | It is written using Javascript language. | It is written in C language.. |
| 4 | The primary database model for PouchDB is Document Store. | The primary database model for SQLite is Relational DBMS. |
| 5 | PouchDB server operating systems are server-less, requires a JavaScript environment (browser, Node.js). | SQLite does not require a server to run. Hence, it is serverless. |
| 6 | It is Data Schema free. | Its Data Schema is fixed. |
| 7 | It does not has predefined data types. | It has predefined datatypes such as float, date, number, etc. |
| 8 | It does not provide ACID transactions. | It provides ACID transactions. |