zzzprojects 

This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world"... More information

[Deprecated] Use Entity Framework Plus instead: http://entityframework-plus.net/ No longer supported since 2015

NMemory is a lightweight non-persistent in-memory relational database engine that is purely written in C# and can be hosted by .NET applications. It supports traditional database features like indexes, foreign key relations, transaction handling and isolation, stored procedures, query optimization.

Effort is basicly an ADO.NET provider that executes all the data operations on a lightweight in-process main memory database instead of a traditional external database. It provides some intuitive helper methods too that make really easy to use this provider with existing ObjectContext or DbContext... More information

EF+ Full Version | C# Entity Framework Utilities (Bulk Operations | Batch Delete | Batch Update | Query Cache | Query Filter | Query Future | Query Include | Audit)

Entity Framework Extensions extends your DbContext with high-performance bulk operations: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, BulkMerge, and more. Example: https://dotnetfiddle.net/awlJdf Benchmark: https://dotnetfiddle.net/35mQ0W Supported Provider: SQL Server, SQL Azure, Oracle,... More information

Provides global & scoped filters for Entity Framework with dynamic filter parameters that are evaluated at query execution. Supports use cases such as Multi-Tenancy and Soft Deletes.

EF+ Full Version | C# Entity Framework Utilities (Bulk Operations | Batch Delete | Batch Update | Query Cache | Query Filter | Query Future | Query Include | Audit)

This is the official GraphDiff package. GraphDiff - Allows for automatic update of a graph of detached entities using Entity Framework v6+. If you have ever felt the pain of updating a detached graph with one or more nested collections then this is for you :)

Entity Framework Extensions extends your DbContext with high-performance bulk operations: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, BulkMerge, and more. Example (in EF6): https://dotnetfiddle.net/awlJdf Benchmark (in EF6): https://dotnetfiddle.net/35mQ0W Supported Provider: SQL Server,... More information

Effort is basicly an ADO.NET provider that executes all the data operations on a lightweight in-process main memory database instead of a traditional external database. It provides some intuitive helper methods too that make really easy to use this provider with existing ObjectContext or DbContext... More information

We moved here: http://eval-expression.net/ NOTE: The current package is *UNSUPPORTED* since 2016

Dapper Plus - High-Efficient Bulk Actions (Insert, Update, Delete, and Merge) for .NET Support: SQL Server, SQL Azure, SQL Compact, MySQL, SQLite and more! FREE trial & PRO version

C# and VB.NET Extension Methods | Over 1000 methods available.

C# Eval Expression is an Eval function. You can Evaluate, Compile and Execute C# code at runtime. Example: https://dotnetfiddle.net/COq6FC Include free and prime features.

C# Bulk Operations: Bulk Insert, Update, Delete & Merge. Support: SQL Server, SQL Azure, SQL Compact, MySQL, SQLite and more! FREE trial & PRO version

EF+ Query IncludeFilter | Entity Framework Include Related Entities using Where Filter.

EF+ Batch Update | Entity Framework Batch Update Objects Without Loading Them.

EF+ Batch Delete | Entity Framework Batch Delete Objects Without Loading Them.

EF+ Query IncludeOptimized | Entity Framework Filter Child Collections and Optimize Include.