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

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

Visit the Wiki for full documentation (v1.x)

Download the source code or binary only in LiteDB Releases

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"));
}

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

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

MIT

Copyright (c) 2016 - Maurício David