


What tools are available for debugging Go applications (e.g., Delve)?
Jun 12, 2025 am 10:23 AMThe main tool for debugging Go applications is Delve (dlv), which is designed for Go, supports setting breakpoints, variable checking, remote debugging, and integrates with IDEs such as VS Code and GoLand; other tools include 1. GDB (basic debugging but limited functions) 2. Print logs (simple and effective) 3. pprof (analyzing performance issues) 4. trace tool (viewing execution events); most modern editors such as VS Code and GoLand can achieve Delve-based debugging integration through plug-ins.
When it comes to debugging Go applications, there are several solid tools available that cater to different needs — from command-line debuggers to full IDE integrations. The most popular and powerful one is Delve, but it's definitely not the only option.
Using Delve – The Go Debugger
Delve (or dlv
) is the go-to debugger for Go applications. It's specifically designed for Go, so it understands the language runtime and can handle things like goroutines, channels, and other Go-specific constructs better than generic debuggers.
Here's how you typically use it:
- Install with:
go install github.com/go-delve/delve/cmd/dlv@latest
- Start debugging by running
dlv debug
in your project directory - You can set breakpoints, inspect variables, step through code, and even evaluate expressions while paused
Delve also supports remote debugging, which is super handy if you're debugging a service running on a different machine or container. Just start the server with dlv --listen=:2345 --headless=true debug
, and connect from another instance of dlv
or an IDE.
It works well with VS Code and GoLand via plugins, giving you a graphic interface without leaving your editor.
Alternative Debugging Tools
While Delve is the most feature-complete, there are other tools depending on what you're trying to do:
- GDB (GNU Debugger) : Technically usable for Go, but limited support for Go-specific features. It might work fine for basic debugging, but it's outdated compared to Delve.
- Print Statements / Logging : Not fancy, but still effective. Sometimes adding a few strategic log lines beats setting up a full debugging session.
- pprof : While not a traditional debugger,
net/http/pprof
helps analyze performance issues, CPU and memory usage, and even look into active goroutines — useful when debugging hangs or leaks. - Trace tool :
go tool trace
gives you insight into execution events over time, helping understand scheduling, blocking, or content issues.
Each has its own niche, and sometimes combining them give the clearest picture.
Integrating with IDEs and Editors
If you prefer working inside an IDE or editor, most modern setups support debugging Go apps directly through built-in or plugin-based integration:
- VS Code : With the official Go extension, you get full debugging support using Delve. Just set breakpoints and hit F5.
- GoLand : JetBrains' Go IDE offers deep integration out of the box, including smart variable evaluation and stack inspection.
- LiteIDE / Vim / Emacs : These have varying levels of support, usually through custom configurations that hook into
dlv
.
Setting this up usually involves installing the right plugin and making sure dlv
is in your path. Once configured, you get a much smoother experience than pure CLI debugging.
So yeah, Delve is the main player here, but knowing the alternatives and integrations make debugging Go apps way more flexible. Depending on your setup and problem, switching between tools can save time and headaches.
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