lowdb vs Turso
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A small JSON-file database you use with plain JavaScript arrays and objects.
Open source · MIT
An in-process SQL database in Rust that aims for SQLite compatibility, with Postgres support in progress.
The short answer
Choose lowdb if you need…
- Node.js developers building small tools or prototypes that need simple persistent storage
- Projects where a full database server would be more setup than the job needs
- Developers who want to query data with native Array functions instead of a query language
- Test suites that need a fast in-memory store, using the Memory adapters
Choose Turso if you need…
- Developers who want an embedded SQLite-compatible database in a Rust, JavaScript, Python, Java, Go, or .NET project
- Teams exploring a Rust-based alternative to SQLite that wants features like concurrent writes via MVCC
- Developers who want to run a database in the browser through WebAssembly
- Projects that want a local-first database with change data capture
Side-by-side
| lowdb | Turso | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 22.6k | 25.1k |
| Setup difficulty | Beginner | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | JavaScript | Rust |
| Last code update | 7 months ago | 4 days ago |
What each one is
lowdb
lowdb stores your data in a plain JSON file and lets you read and change it with ordinary JavaScript objects and array methods. You write changes with a single call, and the library saves them to disk. It is an npm package, so it runs inside a Node.js project, and the README also mentions browser storage adapters.
Turso
Turso is a database engine written in Rust that runs inside your application rather than as a separate server, and it is designed to read and write SQLite-compatible files. It also has an experimental Postgres frontend, so the same core can accept Postgres-style SQL. The project describes its goal as one shared core with several SQL dialects on top, similar in spirit to how LLVM serves many compilers.
Best for
lowdb
- Node.js developers building small tools or prototypes that need simple persistent storage
- Projects where a full database server would be more setup than the job needs
- Developers who want to query data with native Array functions instead of a query language
- Test suites that need a fast in-memory store, using the Memory adapters
Turso
- Developers who want an embedded SQLite-compatible database in a Rust, JavaScript, Python, Java, Go, or .NET project
- Teams exploring a Rust-based alternative to SQLite that wants features like concurrent writes via MVCC
- Developers who want to run a database in the browser through WebAssembly
- Projects that want a local-first database with change data capture
Strengths
lowdb
- Simple API: db.data is a plain JavaScript object, and writes are a single call
- Supports TypeScript so data shapes can be checked at compile time
- Adapters let you change the storage backend or file format
Turso
- Compatible with SQLite SQL dialect, file formats, and C API, tracking SQLite 3.50.4 according to the README
- Offers language bindings for Go, JavaScript, Java, .NET, Python, Rust, and WebAssembly
- Released under the permissive MIT license with an active repository and many stars
Not ideal for
lowdb
- Apps with large datasets or heavy concurrent writes, since the data lives in a single JSON file and the README lists limits around large objects and Node's cluster module
- Projects that need a real database server with multiple clients, indexes or transactions; the README does not describe these features
Turso
- Teams that need a production-proven database today: the README marks Postgres compatibility, encryption, and several other features as experimental
- Anyone needing vector indexing for fast approximate search, since the README lists it only on the roadmap
- Users who need the mature, long-established SQLite ecosystem and its guarantees, since this project is still heading toward 1.0
Trade-offs
lowdb
- Built on a single JSON file, so it is not designed for large or highly concurrent workloads
- The package is pure ESM, which the README notes can cause trouble in some projects
Turso
- Postgres compatibility, encryption at rest, full-text search, and multi-process WAL coordination are labelled experimental
- The README says the project is still on its way to 1.0, so APIs and behavior may change
- Vector indexing is only on the roadmap, and io_uring async I/O is noted only for Linux
Getting started
Turso
Install the turso CLI
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/tursodatabase/turso/releases/latest/download/turso_cli-installer.sh | shAdd the Rust crate
cargo add tursoFrequently asked questions
What is the difference between lowdb and Turso?
lowdb: A small JSON-file database you use with plain JavaScript arrays and objects. Turso: An in-process SQL database in Rust that aims for SQLite compatibility, with Postgres support in progress. lowdb suits node.js developers building small tools or prototypes that need simple persistent storage, while Turso suits developers who want an embedded sqlite-compatible database in a rust, javascript, python, java, go, or .net project.
Are lowdb and Turso free?
lowdb: Free and open source. Turso: Free and open source.
Which is easier to set up, lowdb or Turso?
lowdb is easier to get started with (rated beginner); Turso is rated intermediate and usually needs more setup.
Is lowdb or Turso more popular?
Turso has more GitHub stars (25.1k) than lowdb (22.6k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to lowdb and Turso?
Other options people compare them with include NeDB, store.js, DuckDB, libSQL, lo.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.