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SQLite
The most widely deployed database engine — 1 trillion+ active SQLite databases, built into every iPhone and Android.
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About SQLite
SQLite is the most widely deployed database in the world — over 1 trillion active SQLite databases as of 2024. It is built into every iPhone, every Android device, every Chrome browser, every Firefox browser, and every macOS installation.
SQLite vs PostgreSQL — choosing the right tool:
SQLite: embedded, single file, no network, no server process. Up to 281 TB database size. Reads concurrent, writes serialized. Best for: mobile apps, desktop apps, small web apps, local caching, testing.
PostgreSQL: server-based, network access, full concurrency. Best for: web applications, SaaS, multi-user applications, complex queries.
The file IS the database: `sqlite3 myapp.db` opens the database. Copy the file to back it up. Delete the file to drop the database. No backup scripts, no dump files, no restore procedures for simple cases.
SQLite''s speed: for a single-user workload reading from a local SQLite database, reads are faster than PostgreSQL — no network round-trip, no connection overhead, no query planner overhead for simple queries.
WAL mode (Write-Ahead Logging): enable with `PRAGMA journal_mode=WAL;` to allow concurrent readers even during writes. In WAL mode, 1,000+ read requests per second per connection is typical on consumer hardware.
Used by Turso (edge SQLite), Cloudflare D1, and LiteFS (distributed SQLite) for production web applications.
Key Features
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Zero configuration: no installation, no server, just a file path
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WAL mode: concurrent reads during writes with PRAGMA journal_mode=WAL
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Full SQL: joins, subqueries, CTEs, window functions, triggers, and views
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FTS5: full-text search extension included in most distributions
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JSON support: JSON1 extension for storing and querying JSON documents
Pros
- ✓1 trillion+ active deployments — the most tested database engine in existence
- ✓Single file: the database is a file you can copy, email, or put in Git for version control
- ✓No server process: works in mobile apps, desktop apps, and serverless environments without infrastructure
- ✓Fastest for single-user local reads — no network round-trip, no connection overhead
- ✓Built into Python, Node.js, Ruby, PHP, Go, Rust, Swift, and Kotlin standard libraries
Cons
- ✗Serialized writes: one write at a time — unsuitable for high-concurrency write applications
- ✗No network access by default: cannot share a SQLite database between multiple servers
- ✗No user management, permissions, or role-based access control — single-user access model
Who is using SQLite?
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Mobile app developers who need a local database on the device without a network
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Desktop application developers who want a database embedded in their application binary
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Developers writing automated tests who want a fast in-memory database without Docker
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Web developers prototyping with a local database before deciding on PostgreSQL or MySQL
Use Cases
- →Storing a mobile app''s data in a SQLite database that syncs to the cloud when online
- →Using SQLite in-memory (`sqlite://`) for fast unit tests without database setup
- →Embedding analytics event storage in a desktop application
- →Using Turso or Cloudflare D1 to run SQLite at the edge for production web applications
Pricing
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Public Domain : $0/forever — Full database, Public domain, All features, Community support
Pricing details may not be up to date. For the most accurate and current pricing, refer to the official website.
What Makes SQLite Unique?
The most widely deployed database in the world (1 trillion+ instances) — built into every iOS and Android device, requiring no server, no configuration, and no installation, with the full database in a single portable file.
How We Rated It
Deployment count from SQLite.org official statistics. Performance comparison from personal benchmarks on Apple M2 Pro.
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Accuracy and Reliability 4.8/5
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Ease of Use 4.9/5
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Functionality and Features 4.6/5
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Performance and Speed 4.9/5
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Customer Support 4.5/5
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Value for Money 5.0/5
AI summary
The most widely deployed database engine — 1 trillion+ active SQLite databases, built into every iPhone and Android.