Seq is a log server that runs on a central machine. Your application uses a logging library like Serilog or Microsoft.Extensions.Logging to send structured log events to Seq's HTTP API, which stores them and makes them searchable through Seq's web interface.
Download the latest Seq
.msi from the Seq website.
Launching the installer will start the Setup Wizard:
Step through each page of the wizard. Once the installer has finished copying files, choose to start the Seq service.
Unless you've installed Seq previously, this will open the Seq Service Administration dialog and you'll be prompted for a location to store Seq's data files, and a URL to host the user interface and HTTP API. Choose the defaults if you're unsure.
It's important to set an administrator username and password for Seq when prompted.
After the service is configured, browse the Seq UI at http://localhost:5341.
Before you go live...
Before you can benefit from Seq, your applications need to be configured to send log events through one of the supported logging libraries.
- Using Serilog - Serilog is a modern logging library for the .NET platform with deep support for structured event data.
- Using ASP.NET Core - the Microsoft.Extensions.Logging library included in ASP.NET Core works well with Seq.
- Using Node.js - on Node.js, we support the Pino, Winston, and Bunyan logging libraries.
Seq integrates with a range of languages, libraries and frameworks, and has a simple HTTP API for receiving log data. Learn more about getting logs into Seq.
If you're unsure where to start, we recommend Serilog.
Once your apps are happily sending events to Seq, you can:
- Search your logs more effectively by getting to know the Seq query syntax
- Save your search filters by creating signals to make searches indexed
- Manage your disk usage with retention policies
Updated 9 months ago