SQLite Connection String Generator
Generate connection strings for SQLite in any format. URI, JDBC, .NET, Python, Node.js, Go, and more.
Client-side only — nothing leaves your browser
file:./data/app.db?mode=rwc
What is a SQLite Connection String?
A SQLite connection string specifies how to open a SQLite database. Unlike server-based databases, SQLite is a file-based embedded database engine, so the connection string is primarily a file path rather than a network address. Additional options like open mode, journal mode, cache sharing, and pragma settings can be included depending on the driver format.
Open Modes
- rwc — Read, write, and create the database if it doesn't exist
- rw — Read and write (database must already exist)
- ro — Read-only access (no writes allowed)
- memory — In-memory database (no file on disk)
Quick Reference
| Format | Example Pattern |
|---|---|
| SQLite URI | file:./data/app.db?mode=rwc&cache=shared |
| .NET (Microsoft.Data.Sqlite) | Data Source=./data/app.db;Mode=ReadWriteCreate |
| Python (sqlite3) | sqlite3.connect("./data/app.db") |
| Node.js (better-sqlite3) | new Database("./data/app.db", { readonly: false }) |
| Go (go-sqlite3) | sql.Open("sqlite3", "file:./data/app.db?_journal_mode=wal") |
| JDBC (Java) | jdbc:sqlite:./data/app.db |
| PHP (PDO) | sqlite:./data/app.db |
| Ruby (sqlite3) | SQLite3::Database.new("./data/app.db") |
Frequently Asked Questions
What is a SQLite connection string?
A SQLite connection string specifies how to open a SQLite database file. Unlike server-based databases like PostgreSQL or MySQL, SQLite is an embedded, file-based database engine, so the connection string is primarily a file path rather than a network address. Depending on the language or framework, additional options like open mode, journal mode, and foreign key enforcement can be appended as URI parameters or driver-specific settings.
What is the difference between a SQLite connection string and a PostgreSQL or MySQL connection string?
SQLite connection strings point to a local file (e.g., ./data/app.db) and have no host, port, username, or password because SQLite runs in-process with no network layer. PostgreSQL and MySQL connection strings include server addresses, credentials, and SSL settings because they connect over a network. SQLite options focus on file access mode, journal mode, and pragmas instead of network and authentication parameters.
How do I set WAL mode in a SQLite connection string?
In a URI-style connection string, append _journal_mode=wal as a query parameter (e.g., file:app.db?_journal_mode=wal). In .NET (Microsoft.Data.Sqlite), you typically execute PRAGMA journal_mode=WAL after opening the connection. In Go with go-sqlite3, add _journal_mode=wal to the DSN. WAL (Write-Ahead Logging) mode improves concurrent read performance and is recommended for most applications.
How do I enable foreign keys in a SQLite connection string?
SQLite has foreign key support disabled by default. In URI format, add _foreign_keys=1 as a query parameter. In .NET, add Foreign Keys=True to the connection string. In Go, use _foreign_keys=1 in the DSN. For Python and Node.js, you typically execute PRAGMA foreign_keys = ON after opening the connection. Our generator includes a toggle to add foreign key enforcement to your connection string automatically.
Can SQLite have multiple connections at the same time?
Yes, SQLite supports multiple concurrent readers and a single writer. Using WAL journal mode significantly improves concurrency by allowing readers to proceed without blocking writers (and vice versa). For the shared cache option (cache=shared), multiple connections within the same process share a single data and schema cache, reducing memory usage. However, SQLite is not designed for high-concurrency server workloads - for those, consider PostgreSQL or MySQL.
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