LiteDB - A .NET NoSQL Document Store in a single data file

> v2.0.0-rc (for 1.0.x version, see `Tags`)

LiteDB is a small, fast and lightweight NoSQL embedded database.

Serverless NoSQL Document Store
Simple API similar to MongoDB
100% C# code for .NET 3.5 in a single DLL (less than 200kb)
ACID document transactions
Data recovery after write failure (journal mode)
Datafile encryption using DES cryptography
Map your POCO classes to BsonDocument
Store files and stream data (like GridFS in MongoDB)
Single data file storage (like SQLite)
Index document fields for fast search (up to 16 indexes per collection)
LINQ support for queries
Shell command line - try this online version
Open source and free for everyone - including commercial use
Install from NuGet: Install-Package LiteDB

New features in v2.0.0

Generic data access - can use any Stream
Better mapping of classes from your entity to BsonDocument (like EntityFramework)
Better cross reference with DbRef mapping
ThreadSafe / ProcessSafe
Lazy engine load (open the datafile only when running a command)
Reduce your database size with shrink
Support for Initial Size and Limit Size databases
Complete re-write of engine classes with full debug logger
See more examples at http://www.litedb.org/

Try online

Try LiteDB Web Shell. For security reasons, in the online version not all commands are available. Try the offline version for full feature tests.

Documentation

Visit the Wiki for full documentation (v1.x)

Download

Download the source code or binary only in LiteDB Releases

How to use LiteDB

A quick example for storing and searching documents:

// Create your POCO class
public class Customer
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string[] Phones { get; set; }
    public bool IsActive { get; set; }
}

// Open database (or create if doesn't exist)
using(var db = new LiteDatabase(@"C:\Temp\MyData.db"))
{
	// Get customer collection
	var col = db.GetCollection<Customer>("customers");

    // Create your new customer instance
	var customer = new Customer
    { 
        Name = "John Doe", 
        Phones = new string[] { "8000-0000", "9000-0000" }, 
        IsActive = true
    };
	
	// Insert new customer document (Id will be auto-incremented)
	col.Insert(customer);
	
	// Update a document inside a collection
	customer.Name = "Joana Doe";
	
	col.Update(customer);
	
	// Index document using a document property
	col.EnsureIndex(x => x.Name);
	
	// Use Linq to query documents
	var results = col.Find(x => x.Name.StartsWith("Jo"));
}

Where to use?

Desktop/local small applications
Application file format
Small web applications
One database per account/user data store
Few concurrent write operations

Changelog

Change details for each release are documented in the release notes.

License

MIT

mattwcole/LiteDB