UUIDNext vs NewId

UUIDNext

A fast and modern .NET library to generate UUID/GUID that are either sequential and database friendly (versions 7), name based (versions 5) or random (version 4). (by mareek)

Uuid Guid

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NewId

A sequential id generator that works across nodes with no collisions (by phatboyg)

Flake8 newid Uuid Identity Masstransit C#

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UUIDNext		NewId
	Project
6	Mentions	2
160	Stars	626
-	Growth	-
6.7	Activity	0.0
1 day ago	Latest Commit	over 1 year ago
C#	Language	C#
BSD Zero Clause License	License	Apache License 2.0

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

UUIDNext

Posts with mentions or reviews of UUIDNext. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-04-25.

Hey guys! Just wanted to share a tip on how to use performant Guid as primary keys in databases. Have you heard about UUID Version 7? It's here to save the day! Give it a try and let me know what you think. Happy coding! 😎💻
1 project | /r/dotnet | 5 May 2023

Here's the link to the library: https://github.com/mareek/UUIDNext
I need some help to adapt my UUID/GUID library (UUIDNext) to generate the best UUIDs for PostgreSQL, MySQL and other DBMS
2 projects | /r/csharp | 25 Apr 2023

I maintain a library that generate database optimized UUIDs and to investigate how UUID are stored and sorted on various databases, I need you to execute a little program that show just that (see end of post for more details).
How to use performant Guid as primary keys in databases. UUID Version 7 to the rescue!
5 projects | /r/dotnet | 28 Dec 2022

Not my library: UUIDNext
TL;DR HiLo Key Generation in Entity Framework
1 project | /r/dotnet | 28 Dec 2022

BUT if you want to us GUID's on the server side as performant indexes, use this: https://github.com/mareek/UUIDNext
UUINext: a modern .NET library to generate database friendly or name based UUID/GUID based on the latest RFC draft [crosspost from r/csharp]
1 project | /r/programming | 6 Sep 2021
UUINext: a modern .NET library to generate database friendly or name based UUID/GUID based on the latest RFC draft
1 project | /r/csharp | 6 Sep 2021

NewId

Posts with mentions or reviews of NewId. We have used some of these posts to build our list of alternatives and similar projects.

C# System.Guid.NewGuid() vs SQL NewId()
1 project | /r/csharp | 12 Sep 2022

Your indexes will be fragmented using Guids so there will be an accompanying performance hit, better off maybe with something like https://github.com/phatboyg/NewId
Should i check if a Guid is already used or its completly unnecessary?
1 project | /r/csharp | 9 Jan 2022

As an example the author of masstransit created something similar to twitters snowflake for .net https://github.com/phatboyg/NewId

What are some alternatives?

When comparing UUIDNext and NewId you can also consider the following projects:

uuid - Go package for UUIDs based on RFC 4122 and DCE 1.1: Authentication and Security Services.

IdentityServer4AspNetCoreIdentityTemplate - An ASP.NET Core 6.0 IdentityServer4 Identity Bootstrap 4 template with localization

unity-guid-regenerator - :id: GUID regenerator for Unity assets

BlazorWithIdentity - A project template for a blazor hosted app using cookie based authentication with ef core identity.

go.uuid - UUID package for Go

booking-microservices - Practical microservices, built with .Net 8, DDD, CQRS, Event Sourcing, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.

Huid - 🎫 High-speed a FNV-1a-128 hash-based UUID.

MassTransit - Distributed Application Framework for .NET

rfc4122bis - revision to RFC4122

Ulid - Fast .NET C# Implementation of ULID for .NET and Unity.

Entity Framework - EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

uuid - Generate RFC-compliant UUIDs in JavaScript