Datalust, the company behind Seq

Seq is the intelligent search, analysis, and alerting server built for modern structured logs and traces.

Seq Screenshot

News and announcements

Introducing the Seq Command Palette

Wednesday, 19 February 2025

TL;DR: ever wanted to reset the Seq events screen quickly, deselecting active signals, clearing the filter box, and resetting the date range? In Seq 2025.1, now in preview, that's Ctrl `, followed by c. You can learn about this shortcut and others by pressing&

Seq 2025.1 Preview 1

Wednesday, 29 January 2025

It's time to take the wraps off the next big Seq update! The 2025.1 preview MSIs are now on the Seq download page and datalust/seq:preview is ready to pull from Docker Hub.

Seq 2025.1 Events screen, in the new light theme.
The Seq 2025.1 Light Theme
Seq is the private, secure, self-hosted server

Persistent logs and traces for .NET Aspire

Wednesday, 22 May 2024

This post continues on from a previous post, Enhancing .NET Aspire Observability with Seq. Since that post was published, a Seq component has been included in .NET Aspire, making it even easier to include Seq in your .NET Aspire solution.

The built-in Aspire dashboard provides a way to browse logs,

New from Datalust

On .NET Live - Application logs and diagnostics with Serilog

Nicholas Blumhardt talks application diagnostics with Cecil Phillip in On .NET Live.

.NET Rocks! #1647 - Rust and C# with Ashley Mannix

Ashley Mannix talks with Carl and Richard about the combination of Rust and C# used at Datalust.

C# and Rust: Combining Managed and Unmanaged Code Without Sacrificing Safety, NDC Oslo 2019

Ashley Mannix explores the tools that .NET and Rust give us to design and build safe and robust hybrid applications.

Parsing in C# from First Principles, NDC Sydney 2018

Nicholas Blumhardt talks about Superpower, the library we built for parsing SQL queries in Seq, and the foundational principles behind it.

Open Source and the Future of Seq

Brendan Richards interviews Nicholas Blumhardt about Open Source, Rust, Seq, Serilog, and more, in this AMA from NDC Sydney 2018.

Using Structured Logging for Production Insight

Microsoft's Damian Brady and Nicholas Blumhardt talk structured logging in this episode of The DevOps Lab.

.NET Rocks! #1466 - The Evolution of Serilog

Richard Campbell, Carl Franklin, and Nicholas Blumhardt talk all things logging, diagnostics, and monitoring in this .NET Rocks! episode recorded at NDC Oslo 2017.

Serilog: Instrumentation that Works for You, NDC Oslo 2017

Nicholas Blumhardt presents a complete walk-through of Serilog and modern structured logging at NDC Oslo 2017.