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

• Serverless NoSQL Document Store
• Simple API similar to MongoDB
• 100% C# code for .NET 4 in a single DLL (less than 200kb)
• Document ACID transaction
• Recovery data in writing failure (journal mode)
• Map your POCO class 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 class from your entity to BsonDocument (like EntityFramework)
• Virtual property (Formula) as index field
• Better cross reference with DbRef mapping
• ThreadSafe / ProcessSafe
• Lazy engine load (open datafile only when run a command)
• Reduce your database size with shrink
• Support for Initial Size and Limit Size databases
• Complete re-write engine classes width full debug logger
• See more examples in http://www.litedb.org/

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

Visit Wiki for full documentation (v1.x)

Download source code or binary only in LiteDB Releases

A quick example for store and search 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 not exits)
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 concurrency write users operations

Details changes for each release are documented in the release notes.

MIT

Copyright (c) 2015 - Maurício David