SQLite

.NET driver (link).

Using AutoIncrement Id columns (link).

SQLite Manager is a Mozilla Firefox extension and was for a while the only and the best Open Source tool for working with SQLite databases.

DevArt

Entity Framework Code-First support for Oracle, MySQL, PostgreSQL and SQLite (link).

dbMonitor (link)

Tools

Here are some useful tools for working with SQLite databases:

• Db Browser for SQLite
• SQLite Studio
• SQLite Expert